Attributes { HDF5_ROOT_GROUP { orbit_info { String Dataset "cycle_number", "delta_time", "orbit_number", "sc_orient", "rgt", "sc_orient_time"; } METADATA { AcquisitionInformation { lidar { } lidarDocument { } platform { } platformDocument { } } DataQuality { CompletenessOmission { } DomainConsistency { } } ProductSpecificationDocument { } SeriesIdentification { } DatasetIdentification { } Extent { } QADatasetIdentification { } Lineage { ANC25-04 { } Control { } ANC28 { } ANC38-04 { } ANC06-02 { } ANC09 { } ANC36-04 { } ANC39 { } ANC26-04 { } ANC06-01 { } ANC19 { } ANC10 { } } ProcessStep { Browse { } Metadata { } PGE { } QA { } } } profile_1 { String Dataset "backg_signal_max2", "sig_count_med", "backg_std_dev1", "dem_flag", "backg_max_bin1", "sig_count_low", "backg_method1", "sig_h_sdev_hi", "dtime_fac1", "atm_tw_top", "sig_h_mean_hi", "beam_azimuth", "range_to_top", "solar_azimuth", "longitude", "backg_max_bin2", "latitude", "surf_type", "atm_rw_width_m", "backg_method3", "surf_type_igbp", "sig_h_mean_med", "backg_signal_max1", "dem_h", "tx_pulse_energy", "surface_height", "nrb_profile", "backg_mean2", "prof_dist_y", "beam_elevation", "segment_id", "surface_bin", "solar_elevation", "sig_count_hi", "dtime_fac2", "prof_dist_x", "delta_time", "backg_std_dev2", "backg_method2", "pce_mframe_cnt", "sc_alt", "sig_h_sdev_low", "sig_h_mean_low", "sig_h_sdev_med", "nrb_bot_bin", "surface_sig", "nrb_top_bin"; bckgrd_atlas { String Dataset "bckgrd_counts_reduced", "bckgrd_counts", "delta_time", "bckgrd_hist_top", "bckgrd_int_height", "bckgrd_int_height_reduced", "bckgrd_rate", "pce_mframe_cnt"; } calibration { String Dataset "delta_time_end", "cal_ozone_trans", "cal_c_trans", "longitude", "latitude_end", "latitude", "cal_molec", "cal_c", "delta_time", "cal_con", "cal_nrb", "longitude_end"; } } String Dataset "ds_surf_type", "ds_va_bin_h"; profile_3 { String Dataset "backg_signal_max2", "sig_count_med", "backg_std_dev1", "dem_flag", "backg_max_bin1", "sig_count_low", "backg_method1", "sig_h_sdev_hi", "dtime_fac1", "atm_tw_top", "sig_h_mean_hi", "beam_azimuth", "range_to_top", "solar_azimuth", "longitude", "backg_max_bin2", "latitude", "surf_type", "atm_rw_width_m", "backg_method3", "surf_type_igbp", "sig_h_mean_med", "backg_signal_max1", "dem_h", "tx_pulse_energy", "surface_height", "nrb_profile", "backg_mean2", "prof_dist_y", "beam_elevation", "segment_id", "surface_bin", "solar_elevation", "sig_count_hi", "dtime_fac2", "prof_dist_x", "delta_time", "backg_std_dev2", "backg_method2", "pce_mframe_cnt", "sc_alt", "sig_h_sdev_low", "sig_h_mean_low", "sig_h_sdev_med", "nrb_bot_bin", "surface_sig", "nrb_top_bin"; bckgrd_atlas { String Dataset "bckgrd_counts_reduced", "bckgrd_counts", "delta_time", "bckgrd_hist_top", "bckgrd_int_height", "bckgrd_int_height_reduced", "bckgrd_rate", "pce_mframe_cnt"; } calibration { String Dataset "delta_time_end", "cal_ozone_trans", "cal_c_trans", "longitude", "latitude_end", "latitude", "cal_molec", "cal_c", "delta_time", "cal_con", "cal_nrb", "longitude_end"; } } quality_assessment { String Dataset "qa_granule_fail_reason", "qa_granule_pass_fail"; } meteorology_molec_bkscat { String Dataset "met_tropt", "mol_backs_folded", "ozone_trans", "molec_bkscat_p", "met_t2m", "met_u2m", "met_u10m", "molec_trans", "met_cldprs", "met_v50m", "met_v10m", "longitude", "met_ps", "latitude", "surf_type", "met_qv10m", "met_tqi", "met_t10m", "met_tql", "met_v2m", "met_ts", "segment_id", "met_qv2m", "delta_time", "molec_bkscat_t", "met_u50m", "met_troppb", "mol_backscatter"; } profile_2 { String Dataset "backg_signal_max2", "sig_count_med", "backg_std_dev1", "dem_flag", "backg_max_bin1", "sig_count_low", "backg_method1", "sig_h_sdev_hi", "dtime_fac1", "atm_tw_top", "sig_h_mean_hi", "beam_azimuth", "range_to_top", "solar_azimuth", "longitude", "backg_max_bin2", "latitude", "surf_type", "atm_rw_width_m", "backg_method3", "surf_type_igbp", "sig_h_mean_med", "backg_signal_max1", "dem_h", "tx_pulse_energy", "surface_height", "nrb_profile", "backg_mean2", "prof_dist_y", "beam_elevation", "segment_id", "surface_bin", "solar_elevation", "sig_count_hi", "dtime_fac2", "prof_dist_x", "delta_time", "backg_std_dev2", "backg_method2", "pce_mframe_cnt", "sc_alt", "sig_h_sdev_low", "sig_h_mean_low", "sig_h_sdev_med", "nrb_bot_bin", "surface_sig", "nrb_top_bin"; bckgrd_atlas { String Dataset "bckgrd_counts_reduced", "bckgrd_counts", "delta_time", "bckgrd_hist_top", "bckgrd_int_height", "bckgrd_int_height_reduced", "bckgrd_rate", "pce_mframe_cnt"; } calibration { String Dataset "delta_time_end", "cal_ozone_trans", "cal_c_trans", "longitude", "latitude_end", "latitude", "cal_molec", "cal_c", "delta_time", "cal_con", "cal_nrb", "longitude_end"; } } ancillary_data { String Dataset "release", "end_geoseg", "version", "end_region", "atlas_sdp_gps_epoch", "end_rgt", "end_orbit", "start_cycle", "data_end_utc", "control", "start_gpssow", "granule_end_utc", "end_cycle", "granule_start_utc", "start_geoseg", "start_orbit", "data_start_utc", "end_gpsweek", "start_rgt", "end_gpssow", "qa_at_interval", "start_region", "start_gpsweek"; atmosphere { String Dataset "cal_atm_trans", "back_f2", "cal_cloud_thres", "va_top_ht", "alpha", "cal_integ_time", "ozone_const", "bin_span", "num_va_bins", "atlas_atm_shot_sum_50hz", "atlas_n_atm_hist_bins", "gas_const_r", "deg2rad", "atlas_atm_hist_binsize", "backg_n_seg", "king_fact", "atlas_atm_hist_binsize_s", "cal_top_h", "cal_default", "back_f1", "grd_thres", "atm_tep_width", "dtime_select", "boltzmann_const", "atm_laser_wavelength_nm", "ht_min", "atlas_n_pce", "num_molec_bins", "molec_top_ht", "aer_scat_rat", "atm_processing_interval", "atm_tep_start", "receiver_optical_throughput", "atlas_atm_shot_sum_25hz", "telescope_area", "chappius_coef", "grd_thres_atl03", "cal_scat_ratio", "planck_const", "detector_efficiency", "atm_pulse_ns", "speed_of_light", "backg_select", "dead_time_sfac", "seg_pct_thres", "cal_lat_bound", "cal_bot_h", "pi", "atm_laser_wavelength_m", "cal_solar_angle_limit"; } } } H5_GLOBAL { String HDF5_OBJ_FULLPATH "H5_GLOBAL"; String granule_type "ATL04"; String short_name "ATL04"; String level "2A"; String description "Along-track normalized relative backscatter profiles at full instrument resolution (normally 25 times per second for ~30m vertical bins). Includes calibration coefficient values calculated in the polar region."; String contributor_name "Thomas E Neumann (thomas.neumann@nasa.gov), Thorsten Markus (thorsten.markus@nasa.gov), Suneel Bhardwaj (suneel.bhardwaj@nasa.gov) David W Hancock III (david.w.hancock@nasa.gov)"; String contributor_role "Instrument Engineer, Investigator, Principle Investigator, Data Producer, Data Producer"; String Conventions "CF-1.6"; String date_type "UTC"; String featureType "trajectory"; String geospatial_lat_units "degrees_north"; String geospatial_lon_units "degrees_east"; String identifier_product_doi "10.5067/ATLAS/ATL04.001"; String identifier_product_doi_authority "http://dx.doi.org"; String identifier_product_type "ATL04"; String license "Data may not be reproduced or distributed without including the citation for this product included in this metadata. Data may not be distributed in an altered form without the written permission of the ICESat-2 Science Project Office at NASA/GSFC."; String naming_authority "http://dx.doi.org"; String spatial_coverage_type "Horizontal"; String standard_name_vocabulary "CF-1.6"; String time_type "CCSDS UTC-A"; String date_created "2018-01-17T03:29:38.000000Z"; String hdfversion "HDF5 1.8.18"; String history "2018-01-17T03:29:38.000000Z;A67E7ACC-34AE-406F-DFF5-1CDB5944AD88;Created by PGE atlas_l2a_atm Version 3.1"; String identifier_file_uuid "A67E7ACC-34AE-406F-DFF5-1CDB5944AD88"; String identifier_product_format_version "3.1"; Float64 time_coverage_duration 801.12002301216125; String time_coverage_end "2015-10-28T06:29:30.288021Z"; String time_coverage_start "2015-10-28T06:16:09.167998Z"; String asas_release "ASAS v4.1"; Float64 geospatial_lat_min -0.0012902707602664538; Float64 geospatial_lon_min -170.88174733051255; Float64 geospatial_lat_max 49.78264272926922; Float64 geospatial_lon_max -162.74654264353322; String publisher_name "NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center"; String publisher_email "nsidc@nsidc.org"; String publisher_url "http://nsidc.org/daac/"; String title "ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles"; String identifier_file_product_type "ATL04"; String institution "National Aeronautics and Space Administration (NASA)"; String creator_name "GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System"; String summary "The purpose of ATL04 is to provide normalized relative backscatter and ancillary meteorological and atmosphere data that will be used by to create the upstream ATL09 product."; String keywords "EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR > LIDAR BACKSCATTER > NONE > NONE > NONE"; String keywords_vocabulary "NASA/GCMD Science Keywords"; String citation "Cite these data in publications as follows: The data used in this study were produced by the ICESat-2 Science Project Office at NASA/GSFC. The data archive site is the NASA National Snow and Ice Data Center Distributed Active Archive Center."; String processing_level "2A"; String references "http://nsidc.org/data/icesat2/data.html"; String project "ICESat-2 > Ice, Cloud, and land Elevation Satellite-2"; String instrument "ATLAS > Advanced Topographic Laser Altimeter System"; String platform "ICESat-2 > Ice, Cloud, and land Elevation Satellite-2"; String source "Spacecraft"; } /orbit_info/ { String HDF5_OBJ_FULLPATH "/orbit_info/"; String Description "Contains orbit information."; String data_rate "Varies. Data are only provided when one of the stored values (besides time) changes."; } /orbit_info/cycle_number { String HDF5_OBJ_FULLPATH "/orbit_info/cycle_number"; String units "1"; String contentType "referenceInformation"; String long_name "Cycle Number"; String description "A count of the number of exact repeats of this reference orbit."; String source "Operations"; String coordinates "delta_time"; Int16 valid_min 0; Int16 valid_max 50; } /orbit_info/delta_time { String HDF5_OBJ_FULLPATH "/orbit_info/delta_time"; String units "seconds since 2018-01-01"; String contentType "referenceInformation"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Operations"; String CLASS "DIMENSION_SCALE"; } /orbit_info/orbit_number { String HDF5_OBJ_FULLPATH "/orbit_info/orbit_number"; String units "1"; String contentType "referenceInformation"; String long_name "Orbit Number"; String description "Unique identifying number for each planned ICESat-2 orbit."; String source "Operations"; String coordinates "delta_time"; UInt16 valid_min 1; UInt16 valid_max 65000; } /orbit_info/sc_orient { String HDF5_OBJ_FULLPATH "/orbit_info/sc_orient"; String units "1"; String contentType "referenceInformation"; String long_name "Spacecraft Orientation"; String description "This parameter tracks the spacecraft orientation between between forward, backward and transitional flight modes. ICESat-2 is considered to be flying forward when the weak beams are leading the strong beams; and backward when the strong beams are leading the weak beams. ICESat-2 is considered to be in transition while it is maneuvering between the two orientations. Science quality is potentially degraded while in transition mode."; String source "POD/PPD"; String coordinates "sc_orient_time"; String flag_meanings "backward forward transition"; Int16 flag_values 0, 1, 2; Int16 valid_min 0; Int16 valid_max 2; } /orbit_info/rgt { String HDF5_OBJ_FULLPATH "/orbit_info/rgt"; String units "1"; String contentType "referenceInformation"; String long_name "Reference Ground track"; String description "The reference ground track (RGT) is the track on the earth at which a specified unit vector within the observatory is pointed. Under nominal operating conditions, there will be no data collected along the RGT, as the RGT is spanned by GT3 and GT4. During slews or off-pointing, it is possible that ground tracks may intersect the RGT. The ICESat-2 mission has 1387 RGTs."; String source "Operations"; String coordinates "delta_time"; Int16 valid_min 1; Int16 valid_max 1387; } /orbit_info/sc_orient_time { String HDF5_OBJ_FULLPATH "/orbit_info/sc_orient_time"; String units "seconds since 2018-01-01"; String contentType "referenceInformation"; String long_name "Time of Last Spacecraft Orientation Change"; String standard_name "time"; String description "The time of the last spacecraft orientation change between forward, backward and transitional flight modes, expressed in seconds since the ATLAS SDP GPS Epoch. ICESat-2 is considered to be flying forward when the weak beams are leading the strong beams; and backward when the strong beams are leading the weak beams. ICESat-2 is considered to be in transition while it is maneuvering between the two orientations. Science quality is potentially degraded while in transition mode. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "POD/PPD"; String coordinates "delta_time"; String CLASS "DIMENSION_SCALE"; } /METADATA/ { String HDF5_OBJ_FULLPATH "/METADATA/"; String Description "ISO19115 Structured Metadata Represented within HDF5"; String iso_19139_dataset_xml " ATL04_20151028T061609_00970301_941_01.h5 NSIDC DAAC > National Snow and Ice Data Center DAAC nsidc@nsidc.org http://nsidc.org/daac/ pointOfContact 2018-01-17T03:29:38.000000Z ISO 19115-2 Geographic information - Metadata - Part 2: Extensions for imagery and gridded data ISO 19115-2:2009-02-15 ATL04_20151028T061609_00970301_941_01.h5 2018-01-17T03:29:38.000000Z creation ATL04 The ECS Short Name 001 The ECS Version ID ATL04_20151028T061609_00970301_941_01.h5 ProducerGranuleId The ICESat-2 ATL04 standard data product contains along-track atmosphere backscatter data at full instrument resolution. The product includes full 532 nm (14 km) uncalibrated attenuated backscatter profiles at 25 times per second for vertical bins of approximately 30 meters. Also includes calibration coefficient values derived from data within the polar regions. onGoing ATL04 001 largerWorkCitation eng geoscientificInformation true -170.881747 -162.746543 -0.001290 49.782643 2015-10-28T06:16:09.167998Z 2015-10-28T06:29:30.288021Z dataset 2018-01-17T03:29:38.000000Z;A67E7ACC-34AE-406F-DFF5-1CDB5944AD88;Created by PGE atlas_l2a_atm Version 3.1 2018-01-17T03:29:38.000000Z "; String iso_19139_series_xml " ATL04.001 eng utf8 series NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center 303-492-6199 303-492-2468 1540 30th St Campus Box 449 Boulder Colorado 80309-0449 USA nsidc@nsidc.org http://nsidc.org/daac/ 9:00 A.M. to 5:00 P.M., U.S. Mountain Time, Monday through Friday, excluding U.S. holidays. Contact by e-mail first pointOfContact 2015-10-15 ISO 19115-2 Geographic information - Metadata - Part 2: Extensions for imagery and gridded data ISO 19115-2:2009(E) ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles 2016-06-09 revision 001 ATL04 The ECS Short Name 001 The ECS Version ID doi:10.5067/ATLAS/ATL04.001 gov.nasa.esdis A Digital Object Identifier (DOI) National Aeronautics and Space Administration (NASA) resourceProvider GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System originator Initial version of the processing software ATL04 contains along-track atmosphere backscatter data at full instrument resolution. The product includes full 532 nm (14 km) uncalibrated attenuated backscatter profiles at 25 times per second for vertical bins of approximately 30 meters. Includes calibration coefficient values derived from data within the polar regions. The purpose of ATL04 is to provide normalized relative backscatter and ancillary meteorological and atmosphere data that will be used by to create the upstream ATL09 product. The software that generates the ATL04 product was designed and implemented within the ICESat-2 Science Investigator-led Processing System at the NASA Goddard Space Flight Center in Greenbelt, Maryland. onGoing NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center distributor HDF 5 EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR > LIDAR BACKSCATTER > NONE > NONE > NONE theme NASA/GCMD Science Keywords NASA Global Change Master Directory (GCMD) User Support Office NASA Global Change Master Directory, Goddard Space Flight Center Greenbelt MD 20771 USA gcmduso@gcmd.gsfc.nasa.gov http://gcmd.nasa.gov/ http web browser NASA Global Change Master Directory (GCMD) Home Page information http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso custodian Global Change Master Directory (GCMD) NASA Global Change Master Directory, Goddard Space Flight Center Greenbelt MD 20771 USA gcmduso@gcmd.gsfc.nasa.gov http://gcmd.nasa.gov/Resources/valids/ http web browser NASA Global Change Master Directory (GCMD) Keyword Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. download http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso custodian GEOGRAPHIC REGION > GLOBAL place NASA/GCMD Location Keywords NASA/NSIDC_DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center dataCenter NASA/GCMD Data Center Keywords Earth Observation Satellites > NASA Decadal Survey > ICESAT-2 > Ice, Cloud, and land Elevation Satellite-2 platform NASA/GCMD Platform Keywords Earth Remote Sensing Instruments > Active Remote Sensing > Altimeters > Lidar/Laser Altimeters > ATLAS > Advanced Topographic Laser Altimeter System instrument NASA/GCMD Instrument Keywords Cite these data in publications as follows: The data used in this study were produced by the ICESat-2 Science Project Office at NASA/GSFC. The data archive site is the NASA National Snow and Ice Data Center Distributed Active Archive Center. eng geoscientificInformation -180.0 180.0 -90.0 90.0 2005-01-01T00:00:00Z 2020-12-31T23:59:59Z 2A 2A HDF 5 NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center distributor http://nsidc.org/data/icesat2/data.html http Data Product Description Page information http://nsidc.org/data/icesat2/order.html http Data Product Order Page order http://dx.doi.org/10.5067/ATLAS/ATL04.001 http Digital Object Identifier URL information ATLAS > Advanced Topographic Laser Altimeter System ATLAS Advanced Topographic Laser Altimeter System Laser Altimeter ATLAS on ICESat-2 determines the range between the satellite and the Earth's surface by measuring the two-way time delay of short pulses of laser light that it transmits in six beams. It is different from previous operational ice-sheet altimeters in that it is a photon-counting LIDAR. ATLAS records a set of arrival times for individual photons, which are then analyzed to derive surface, vegetation, and cloud properties. ATLAS has six beams arranged in three pairs, so that it samples each of three reference pair tracks with a pair of beams; ATLAS transmits pulses at 10 kHz, giving approximately one pulse every 0.7 m along track; ATLAS's expected pointing control will be better than 90 m RMS. ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 ICESat-2 Ice, Cloud, and land Elevation Satellite-2 underDevelopment ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 ICESat-2 Ice, Cloud, and land Elevation Satellite-2 Spacecraft "; } /METADATA/AcquisitionInformation/ { String HDF5_OBJ_FULLPATH "/METADATA/AcquisitionInformation/"; } /METADATA/AcquisitionInformation/lidar/ { String HDF5_OBJ_FULLPATH "/METADATA/AcquisitionInformation/lidar/"; String pulse_rate "10000 pps"; String wavelength "532 nm"; String identifier "ATLAS"; String type "Laser Altimeter"; String description "ATLAS on ICESat-2 determines the range between the satellite and the Earth's surface by measuring the two-way time delay of short pulses of laser light that it transmits in six beams. It is different from previous operational ice-sheet altimeters in that it is a photon-counting LIDAR. ATLAS records a set of arrival times for individual photons, which are then analyzed to derive surface, vegetation, and cloud properties. ATLAS has six beams arranged in three pairs, so that it samples each of three reference pair tracks with a pair of beams; ATLAS transmits pulses at 10 kHz, giving approximately one pulse every 0.7 m along track; ATLAS's expected pointing control will be better than 90 m RMS."; } /METADATA/AcquisitionInformation/lidarDocument/ { String HDF5_OBJ_FULLPATH "/METADATA/AcquisitionInformation/lidarDocument/"; String edition "Pre-Release"; String publicationDate "12/31/17"; String title "A document describing the ATLAS instrument will be provided by the ICESat-2 Project Science Office."; } /METADATA/AcquisitionInformation/platform/ { String HDF5_OBJ_FULLPATH "/METADATA/AcquisitionInformation/platform/"; String identifier "ICESat-2"; String description "Ice, Cloud, and land Elevation Satellite-2"; String type "Spacecraft"; } /METADATA/AcquisitionInformation/platformDocument/ { String HDF5_OBJ_FULLPATH "/METADATA/AcquisitionInformation/platformDocument/"; String edition "31-Dec-16"; String publicationDate "31-Dec-16"; String title "The Ice, Cloud, and land Elevation Satellite-2 (ICESat-2): Science requirements, concept, and implementation. Thorsten Markus, Tom Neumann, Anthony Martino, Waleed Abdalati, Kelly Brunt, Beata Csatho, Sinead Farrell, Helen Fricker, Alex Gardner, David Harding, Michael Jasinski, Ron Kwok, Lori Magruder, Dan Lubin, Scott Luthcke, James Morison, Ross Nelson, Amy Neuenschwander, Stephen Palm, Sorin Popescu, CK Shum, Bob E. Schutz, Benjamin Smith, Yuekui Yang, Jay Zwally. http://dx.doi.org/10.1016/j.rse.2016.12.029"; } /METADATA/DataQuality/ { String HDF5_OBJ_FULLPATH "/METADATA/DataQuality/"; String scope "NOT_SET"; } /METADATA/DataQuality/CompletenessOmission/ { String HDF5_OBJ_FULLPATH "/METADATA/DataQuality/CompletenessOmission/"; String evaluationMethodType "directInternal"; String measureDescription "TBD"; String nameOfMeasure "TBD"; String unitofMeasure "TBD"; String value "NOT_SET"; } /METADATA/DataQuality/DomainConsistency/ { String HDF5_OBJ_FULLPATH "/METADATA/DataQuality/DomainConsistency/"; String evaluationMethodType "directInternal"; String measureDesciption "TBD"; String nameOfMeasure "TBD"; String unitofMeasure "TBD"; String value "NOT_SET"; } /METADATA/ProductSpecificationDocument/ { String HDF5_OBJ_FULLPATH "/METADATA/ProductSpecificationDocument/"; String characterSet "utf8"; String edition "Revision C"; String language "eng"; String publicationDate "12/1/2017"; String ShortName "ATL04_SDP"; String title "ICESat-2-SIPS-SPEC-4259 - ATLAS Science Algorithm Standard Data Product (SDP) Volume 4 (ATL04). Revision C."; } /METADATA/SeriesIdentification/ { String HDF5_OBJ_FULLPATH "/METADATA/SeriesIdentification/"; String maintenanceAndUpdateFrequency "asNeeded"; String maintenanceDate "SET_BY_META"; String VersionID "941"; String identifier_product_DOI "10.5067/ATLAS/ATL04.001"; String language "eng"; String characterSet "utf8"; String pointOfContact "NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center"; String longName "ATLAS/ICESat-2 L2A Normalized Relative Backscatter Profiles"; String shortName "ATL04"; String revisionDate "2016-06-09"; String resourceProviderOrganizationName "National Aeronautics and Space Administration (NASA)"; String abstract "ATL04 contains along-track atmosphere backscatter data at full instrument resolution. The product includes full 532 nm (14 km) uncalibrated attenuated backscatter profiles at 25 times per second for vertical bins of approximately 30 meters. Includes calibration coefficient values derived from data within the polar regions."; String purpose "The purpose of ATL04 is to provide normalized relative backscatter and ancillary meteorological and atmosphere data that will be used by to create the upstream ATL09 product."; String credit "The software that generates the ATL04 product was designed and implemented within the ICESat-2 Science Investigator-led Processing System at the NASA Goddard Space Flight Center in Greenbelt, Maryland."; String status "onGoing"; String format "HDF"; String formatVersion "5"; String topicCategory "geoscientificInformation"; String mission "ICESat-2 > Ice, Cloud, and land Elevation Satellite-2"; } /METADATA/DatasetIdentification/ { String HDF5_OBJ_FULLPATH "/METADATA/DatasetIdentification/"; String spatialRepresentationType "along-track"; String creationDate "2018-01-17T03:29:38.000000Z"; String uuid "A67E7ACC-34AE-406F-DFF5-1CDB5944AD88"; String fileName "ATL04_20151028T061609_00970301_941_01.h5"; String VersionID "941"; String language "eng"; String characterSet "utf8"; String shortName "ATL04"; String originatorOrganizationName "GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System"; String abstract "ATL04 contains along-track atmosphere backscatter data at full instrument resolution. The product includes full 532 nm (14 km) uncalibrated attenuated backscatter profiles at 25 times per second for vertical bins of approximately 30 meters. Includes calibration coefficient values derived from data within the polar regions."; String purpose "The purpose of ATL04 is to provide normalized relative backscatter and ancillary meteorological and atmosphere data that will be used by to create the upstream ATL09 product."; String credit "The software that generates the ATL04 product was designed and implemented within the ICESat-2 Science Investigator-led Processing System at the NASA Goddard Space Flight Center in Greenbelt, Maryland."; String status "onGoing"; String topicCategory "geoscientificInformation"; } /METADATA/Extent/ { String HDF5_OBJ_FULLPATH "/METADATA/Extent/"; Float64 northBoundLatitude 49.78264272926922; Float64 eastBoundLongitude -162.74654264353322; Float64 southBoundLatitude -0.0012902707602664538; Float64 westBoundLongitude -170.88174733051255; String rangeBeginningDateTime "2015-10-28T06:16:09.207998Z"; String rangeEndingDateTime "2015-10-28T06:29:30.248021Z"; } /METADATA/QADatasetIdentification/ { String HDF5_OBJ_FULLPATH "/METADATA/QADatasetIdentification/"; String abstract "An ASCII product that contains statistical information on data product results. These statistics enable data producers and users to assess the quality of the data in the data product granule"; String creationDate "2018-01-17T03:30:11.000000Z"; String fileName "ATL04_20151028T061609_00970301_941_01.h5.qa"; } /METADATA/Lineage/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/"; } /METADATA/Lineage/ANC25-04/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC25-04/"; String description "HDF5 template file that defines the organization and default content of the product."; String fileName "atl04_template.h5"; String shortName "ANC25-04"; String uuid "1880D7F1-7F1F-4F36-A0C0-B492BF82424F"; String version "001"; } /METADATA/Lineage/Control/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/Control/"; String description "Text-based keyword=value file generated automatically within the ICESat-2 data system that specifies all of the conditions required for each individual run of the software."; String fileName "cf_atlas_l2a_atm_0097_03_01.ctl"; String shortName "CNTL"; String version "1"; } /METADATA/Lineage/ANC28/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC28/"; String description "DTU10 Mean Sea Surface reformatted into HDF5."; String fileName "dtu10_20140218_001_01.h5"; String shortName "ANC28"; String uuid "FB84D076-0F68-4C2B-A576-C9DF9BC79E4C"; String version "001"; } /METADATA/Lineage/ANC38-04/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC38-04/"; String description "ISO 19139 XML file containing DataSet-level metadata information."; String fileName "DsESDTAtATL04.001.dataset.xml"; String shortName "ANC38-04"; String uuid "95BF65A6-F1E7-445E-9E94-ADD030917038"; String version "001"; } /METADATA/Lineage/ANC06-02/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC06-02/"; String description "GIMP Digital Elevation Model reformatted into HDF5."; String fileName "gimp30m_20140609_003_01.h5"; String shortName "ANC06-02"; String uuid "8FB4F997-A9BC-48A3-9C3F-5248B86E45C3"; String version "001"; } /METADATA/Lineage/ANC09/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC09/"; String description "IGBP surface type file"; String fileName "gigbp2_0ll.img"; String shortName "ANC09"; String uuid "7E06B60C-E194-45DF-896A-9E3E6CE308C6"; String version "001"; } /METADATA/Lineage/ANC36-04/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC36-04/"; String description "ISO 19139 XML file containing Series-level metadata information."; String fileName "DsESDTAtATL04.001.series.xml"; String shortName "ANC36-04"; String uuid "5BFCCB48-D68E-4897-92C6-389DE6A1C32B"; String version "001"; } /METADATA/Lineage/ANC39/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC39/"; String description "Intermediate ancillary file produced by the ICESat-2 atlas_l2a_alt PGE as an input to the atlas_l2a_atm PGE."; String fileName "ANC39_20151028T061609_00970301_941_01.h5", "ANC39_20151028T062322_00970302_941_01.h5"; String shortName "ANC39", "ANC39"; String uuid "58B2D1B4-8663-4AAC-9676-33810D187B9E", "FE977CBB-9979-4DD1-D042-BBEE196A6845"; String version "941", "941"; Int32 start_cycle 3, 3; Int32 end_cycle 3, 3; Int32 start_orbit 2871, 2871; Int32 end_orbit 2871, 2871; Int32 start_rgt 97, 97; Int32 end_rgt 97, 97; Int32 start_region 1, 2; Int32 end_region 1, 2; Int32 start_geoseg 1, 150475; Int32 end_geoseg 150474, 332618; } /METADATA/Lineage/ANC26-04/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC26-04/"; String description "HDF5 template file that defines the organization and default content of the product metadata."; String fileName "atl04_metadata_template.h5"; String shortName "ANC26-04"; String uuid "7E3F303E-3583-4275-9471-68B8826DC492"; String version "001"; } /METADATA/Lineage/ANC06-01/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC06-01/"; String description "GMTED Digital Elevation Model reformatted into HDF5."; String fileName "gmted75_20140609_003_01.h5"; String shortName "ANC06-01"; String uuid "7166107B-1668-43BF-9778-A59E2C34CACA"; String version "001"; } /METADATA/Lineage/ANC19/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC19/"; String description "TAI to UTC leapsecond file retrieved from ftp://maia.usno.navy.mil/ser7/tai-utc.dat"; String fileName "tai-utc.dat"; String shortName "ANC19"; String uuid "1B17F4A6-AE26-4FC4-862A-BF283C488602"; String version "001"; } /METADATA/Lineage/ANC10/ { String HDF5_OBJ_FULLPATH "/METADATA/Lineage/ANC10/"; String description "GEOS5 FPIT 2D"; String fileName "DAS.fpit.asm.tavg1_2d_slv_Nx.GEOS591.20140225_0530.V01.nc4", "DAS.fpit.asm.tavg1_2d_slv_Nx.GEOS591.20140225_0630.V01.nc4", "DAS.fpit.asm.tavg1_2d_slv_Nx.GEOS591.20140225_0730.V01.nc4"; String shortName "ANC10", "ANC10", "ANC10"; String uuid "NOT_SET", "NOT_SET", "NOT_SET"; String version "01", "01", "01"; } /METADATA/ProcessStep/ { String HDF5_OBJ_FULLPATH "/METADATA/ProcessStep/"; } /METADATA/ProcessStep/Browse/ { String HDF5_OBJ_FULLPATH "/METADATA/ProcessStep/Browse/"; String processDescription "Browse processing is performed for each granule SIPS produces. The browse utility reads data from the granule and produces browse images as defined in the respective product ATBD. The utility then embeds each browse image into the product within the /Browse group."; String identifier "atlas_brw"; String softwareVersion "Version 1.1"; String softwareDate "Jan 13 2018"; String softwareTitle "Creates ATLAS HDF5 browse files"; String runTimeParameters "cf_atlas_l2a_atm_0097_03_01.ctl"; String stepDateTime "2018-01-17T03:30:14.000000Z"; } /METADATA/ProcessStep/Metadata/ { String HDF5_OBJ_FULLPATH "/METADATA/ProcessStep/Metadata/"; String processDescription "Metadata information is processed by the metadata utility for each granule produced by SIPS. During PGE processing, dynamic metadata are written to the product. Additional static information is provided with the metadata template. The metadata utility reads ISO Dataset and Series metadata files and updates the product with static information from within those files. The utility then merges the static and dynamic metadata to creates output ISO19139 Dataset and Series XML files. Finally the utility reads the ISO19139 Dataset and Series XML files into memory and stores the textual representations as attributes attached to the /METADATA group."; String identifier "atlas_meta"; String softwareVersion "Version 3.1"; String softwareDate "Jan 13 2018"; String softwareTitle "Creates ATLAS XML metadata files"; String runTimeParameters "cf_atlas_l2a_atm_0097_03_01.ctl"; String stepDateTime "2018-01-17T03:30:40.000000Z"; } /METADATA/ProcessStep/PGE/ { String HDF5_OBJ_FULLPATH "/METADATA/ProcessStep/PGE/"; String ATBDDate "11/15/2017"; String ATBDTitle "ICESat-2-SIPS-SPEC-1607 - SIPs: Atmosphere Products L5 Specification Document"; String ATBDVersion "Version 7.3"; String documentation "ICESat-2-SIPS-SPEC-2327 - ATLAS Science Algorithm Software Design Description (SDD) Volume 8 (atlas_l2a_atm). Revision C."; String documentDate "12/1/2017"; String processDescription "Computes Uncalibrated Backscatter Profiles determined by ATBD Algorithm using POD and PPD"; String identifier "atlas_l2a_atm"; String softwareVersion "Version 3.1"; String softwareDate "Jan 13 2018"; String softwareTitle "ASAS L2A ATM PGE"; String runTimeParameters "cf_atlas_l2a_atm_0097_03_01.ctl"; String stepDateTime "2018-01-17T03:29:38.000000Z"; } /METADATA/ProcessStep/QA/ { String HDF5_OBJ_FULLPATH "/METADATA/ProcessStep/QA/"; String processDescription "QA processing is performed by an external utility on each granule produced by SIPS. The utility reads the granule, performs both generic and product-specific quality-assessment calculations, and writes a text-based quality assessment report. The name and creation data of this report are identified within the QADatasetIdentification metadata"; String identifier "atl04_qa_util"; String softwareVersion "Version 3.1"; String softwareDate "Jan 13 2018"; String softwareTitle "ATL04 QA Utility"; String runTimeParameters "cf_atlas_l2a_atm_0097_03_01.ctl"; String stepDateTime "2018-01-17T03:30:11.000000Z"; } /profile_1/ { String HDF5_OBJ_FULLPATH "/profile_1/"; String Description "Each group contains the segments for the strong beam of one Pair Track. As ICESat-2 orbits the earth, sequential transmit pulses illuminate six ground tracks on the surface of the earth. The track width is approximately 14m. The Atmosphere profiles are only reported for the strong beam. Profiles are numbered from the left to the right in the direction of spacecraft travel as: 1 for the left-most pair of beams; 2 for the center pair of beams; and 3 for the right-most pair of beams."; String data_rate "Data in this group is stored at a 25hz (25 per second) rate."; String atlas_pce "pce3"; String atlas_beam_type "strong"; String groundtrack_id "gt1r"; String atmosphere_profile "profile_1"; String atlas_spot_number "5"; String sc_orientation "Forward"; } /profile_1/backg_signal_max2 { String HDF5_OBJ_FULLPATH "/profile_1/backg_signal_max2"; String units "counts"; String contentType "modelResult"; String long_name "Background signal max 2"; String description "Background signal max2, in photons/bin, from the selectd method used. (Sm2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_count_med { String HDF5_OBJ_FULLPATH "/profile_1/sig_count_med"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signal Heights - Medium"; String description "Count of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/backg_std_dev1 { String HDF5_OBJ_FULLPATH "/profile_1/backg_std_dev1"; String units "counts"; String contentType "modelResult"; String long_name "Background standard deviation 1"; String description "Background standard deviation from the selected method used (Sstd1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/dem_flag { String HDF5_OBJ_FULLPATH "/profile_1/dem_flag"; Int16 _FillValue 127; String units "1"; String contentType "referenceInformation"; String long_name "DEM Source Flag"; String description "Indicates source of the DEM height. Values: 0=None, 1=GIMP, 2=GMTED, 3=MSS."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "none gimp gmted mss"; Int16 flag_values 0, 1, 2, 3; Int16 valid_min 0; Int16 valid_max 3; } /profile_1/backg_max_bin1 { String HDF5_OBJ_FULLPATH "/profile_1/backg_max_bin1"; String units "counts"; String contentType "modelResult"; String long_name "Background max bin 1"; String description "Background maximum bin from the selected method used. (Binmax1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/bckgrd_atlas/ { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/"; String Description "Contains the ATLAS 50-shot background data and derivations."; } /profile_1/bckgrd_atlas/bckgrd_counts_reduced { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/bckgrd_counts_reduced"; String units "counts"; String long_name "ATLAS 50-shot background count - reduced"; String description "Number of photon counts in the 50-shot sum after subtracting the number of signal photon events, defined as in ATBD Section 5, in that span."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; String contentType "modelResult"; } /profile_1/bckgrd_atlas/bckgrd_counts { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/bckgrd_counts"; String units "counts"; String contentType "modelResult"; String long_name "ATLAS 50-shot background count"; String description "Onboard 50 shot background (200 Hz) sum of photon events within the altimetric range window."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_1/bckgrd_atlas/delta_time { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Derived via Time Tagging"; String coordinates "delta_time"; String CLASS "DIMENSION_SCALE"; String NAME "profile_1/bckgrd_atlas/delta_time"; } /profile_1/bckgrd_atlas/bckgrd_hist_top { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/bckgrd_hist_top"; String units "meters"; String contentType "modelResult"; String long_name "Top of the altimetric range window"; String description "The height of the top of the altimetric histogram, in meters above the WGS-84 ellipsoid, with all geophysical corrections applied. Parameter is ingested at 50-Hz, and values are repeated to form a 200-Hz array."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_1/bckgrd_atlas/bckgrd_int_height { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/bckgrd_int_height"; String units "meters"; String contentType "modelResult"; String long_name "Altimetric range window width"; String description "The height of the altimetric range window. This is the height over which the 50-shot sum is generated. Parameter is ingested at 50-Hz, and values are repeated to form a 200-Hz array."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_1/bckgrd_atlas/bckgrd_int_height_reduced { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/bckgrd_int_height_reduced"; String units "meters"; String contentType "modelResult"; String long_name "Altimetric range window height - reduced"; String description "The height of the altimetric range window after subtracting the height span of the signal photon events in the 50-shot span."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_1/bckgrd_atlas/bckgrd_rate { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/bckgrd_rate"; String units "counts / second"; String contentType "modelResult"; String long_name "Background count rate based on the ATLAS 50-shot sum"; String description "The background count rate from the 50-shot altimetric histogram after removing the number of likely signal photons based on Section 5."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_1/bckgrd_atlas/pce_mframe_cnt { String HDF5_OBJ_FULLPATH "/profile_1/bckgrd_atlas/pce_mframe_cnt"; String units "counts"; String contentType "referenceInformation"; String long_name "PCE Major frame counter"; String description "Major Frame ID - The major frame ID is read from the DFC and starts counting at DFC POR. The counter is used to identify individual major frames across diag and science packets. This counter can go for about 2.7 years before rolling over. It is in the first time tag science packet. Used as part of the photon ID"; String source "ATL02"; String coordinates "delta_time"; } /profile_1/sig_count_low { String HDF5_OBJ_FULLPATH "/profile_1/sig_count_low"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signal Heights - Low"; String description "Count of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/backg_method1 { String HDF5_OBJ_FULLPATH "/profile_1/backg_method1"; String units "counts"; String contentType "modelResult"; String long_name "Background method 1"; String description "Background from method 1in photons/bin. (pb1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_h_sdev_hi { String HDF5_OBJ_FULLPATH "/profile_1/sig_h_sdev_hi"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signal Heights -High"; String description "SDev of the heights of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/dtime_fac1 { String HDF5_OBJ_FULLPATH "/profile_1/dtime_fac1"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "dead_time_factor1"; String description "Dead time correction factor for surface signal computed from radiometric lookup table."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/atm_tw_top { String HDF5_OBJ_FULLPATH "/profile_1/atm_tw_top"; String units "meters"; String contentType "referenceInformation"; String long_name "Atmospheric Telemetry Window Top"; String description "The geolocated ellipsoidal height at the top of the Atmospheric range window"; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_h_mean_hi { String HDF5_OBJ_FULLPATH "/profile_1/sig_h_mean_hi"; String contentType "referenceInformation"; String long_name "Mean of SignalHeights - High"; String description "Mean height of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; Float32 _FillValue 3.402823466e+38; String units "meters"; } /profile_1/beam_azimuth { String HDF5_OBJ_FULLPATH "/profile_1/beam_azimuth"; Float32 _FillValue 3.402823466e+38; String units "degrees_east"; String contentType "referenceInformation"; String long_name "beam azimuth"; String description "Beam azimuth"; String source "ATL03 ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/range_to_top { String HDF5_OBJ_FULLPATH "/profile_1/range_to_top"; String units "meters"; String contentType "referenceInformation"; String long_name "Range"; String description "Range from the spacecraft to the top of the atmosphere range window."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/solar_azimuth { String HDF5_OBJ_FULLPATH "/profile_1/solar_azimuth"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "solar azimuth"; String description "The direction, eastwards from north, of the sun vector as seen by an observer at the laser ground spot."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/longitude { String HDF5_OBJ_FULLPATH "/profile_1/longitude"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "Longitude of the ATM histogram"; String standard_name "longitude"; String description "Longitude at the the top of the ATM histogram, WGS84, East=+, derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_1/backg_max_bin2 { String HDF5_OBJ_FULLPATH "/profile_1/backg_max_bin2"; String units "counts"; String contentType "modelResult"; String long_name "Background max bin 2"; String description "Background maximum bin2 from the selected method used. (Binmax2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/latitude { String HDF5_OBJ_FULLPATH "/profile_1/latitude"; String units "degrees_north"; String contentType "referenceInformation"; String long_name "Latitude of the ATM histogram"; String standard_name "latitude"; String description "Latitude at the the top of the ATM histogram, WGS84, North=+, Derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /profile_1/surf_type { String HDF5_OBJ_FULLPATH "/profile_1/surf_type"; String units "1"; String contentType "referenceInformation"; String long_name "Surface Type"; String description "Flags describing which surface types this interval is associated with. 0=not type, 1=is type. Order of array is land, ocean, sea ice, land ice, inland water."; String source "ATL03 ATBD, Section 4"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "not_type is_type"; Int16 flag_values 0, 1; Int16 valid_min 0; Int16 valid_max 1; } /profile_1/atm_rw_width_m { String HDF5_OBJ_FULLPATH "/profile_1/atm_rw_width_m"; String units "seconds"; String contentType "referenceInformation"; String long_name "Atmospheric Range Window Width"; String description "The range, in meters, from the Atmospheric range window start to the range window stop."; String source "ATL02"; String coordinates "delta_time, latitude, longitude"; } /profile_1/backg_method3 { String HDF5_OBJ_FULLPATH "/profile_1/backg_method3"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "Background method 3"; String description "Background from method 3 in photons/bin. (Defined in Atmosphere ATBD section 3.3.4)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/surf_type_igbp { String HDF5_OBJ_FULLPATH "/profile_1/surf_type_igbp"; String units "1"; String long_name "IGBP Surface Type"; String description "IGBP Surface Type"; String source "Atmosphere ATBD, IGBP Surface Type"; String coordinates "delta_time, latitude, longitude"; String contentType "referenceInformation"; } /profile_1/sig_h_mean_med { String HDF5_OBJ_FULLPATH "/profile_1/sig_h_mean_med"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "Mean of Signa Heightsl - Med"; String description "Mean height of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/backg_signal_max1 { String HDF5_OBJ_FULLPATH "/profile_1/backg_signal_max1"; String units "counts"; String long_name "Background signal max 1"; String description "Background signal ma1x, in photons/bin, from the selectd method used. (Sm1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; String contentType "modelResult"; } /profile_1/dem_h { String HDF5_OBJ_FULLPATH "/profile_1/dem_h"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "DEM Height"; String description "Best available DEM (in priority of GIMP/GMTED/MSS) value at the geolocation point."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/tx_pulse_energy { String HDF5_OBJ_FULLPATH "/profile_1/tx_pulse_energy"; String units "Joules"; String contentType "referenceInformation"; String long_name "Transmit Pulse Energy"; String description "The average transmit pulse energy recorded by the Start Pulse Detector, split into per-beam measurements."; String source "ATL02 ATBD, Section 7.2"; String coordinates "delta_time, latitude, longitude"; } /profile_1/surface_height { String HDF5_OBJ_FULLPATH "/profile_1/surface_height"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "modelResult"; String long_name "Surface height"; String description "Height of the detected surface bin."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/nrb_profile { String HDF5_OBJ_FULLPATH "/profile_1/nrb_profile"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "NRB Profile"; String description "Normalize relative backscatter (NRB) profile vertically aligned to 20 to -1 km with vertical resolution of 30 m. (Photons km2/Joule)"; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /profile_1/backg_mean2 { String HDF5_OBJ_FULLPATH "/profile_1/backg_mean2"; String units "counts"; String contentType "modelResult"; String long_name "Signal mean"; String description "Signal mean from method 2 (pb2 defined in Atmosphere ATBD part 1 section 2.3.4)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/prof_dist_y { String HDF5_OBJ_FULLPATH "/profile_1/prof_dist_y"; String units "meters"; String contentType "referenceInformation"; String long_name "Across Track Distance from RGT"; String description "Across-Track distance from the reference ground track."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/beam_elevation { String HDF5_OBJ_FULLPATH "/profile_1/beam_elevation"; Float32 _FillValue 3.402823466e+38; String units "degrees"; String contentType "referenceInformation"; String long_name "beam elevation"; String description "Beam elevation"; String source "ATL03 ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/ { String HDF5_OBJ_FULLPATH "/profile_1/calibration/"; String Description "Contains calibration data associated with a PCE strong beam."; String data_rate "Data within this group stored at a low rate corresponding to the number of times ATLAS passes with the calibration boundary conditions (lat > 60 and solar_angle > 90)/"; } /profile_1/calibration/delta_time_end { String HDF5_OBJ_FULLPATH "/profile_1/calibration/delta_time_end"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Calibration interval end time"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch where the cal interval ended. The corresponding start time of the interval is delta_time. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/cal_ozone_trans { String HDF5_OBJ_FULLPATH "/profile_1/calibration/cal_ozone_trans"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "Ozone transmission used"; String description "Ozone transmission term used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/cal_c_trans { String HDF5_OBJ_FULLPATH "/profile_1/calibration/cal_c_trans"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "total transmission used"; String description "The total transmission used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/longitude { String HDF5_OBJ_FULLPATH "/profile_1/calibration/longitude"; String units "degrees_east"; String contentType "modelResult"; String long_name "Calibration interval start longitude"; String standard_name "longitude"; String description "Start Longitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_1/calibration/latitude_end { String HDF5_OBJ_FULLPATH "/profile_1/calibration/latitude_end"; String units "degrees_north"; String contentType "modelResult"; String long_name "Calibration interval end latitude"; String description "Stop Latitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /profile_1/calibration/latitude { String HDF5_OBJ_FULLPATH "/profile_1/calibration/latitude"; String units "degrees_north"; String long_name "Calibration interval start Latitude"; String standard_name "latitude"; String description "Start Latitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; String contentType "modelResult"; } /profile_1/calibration/cal_molec { String HDF5_OBJ_FULLPATH "/profile_1/calibration/cal_molec"; Float32 _FillValue 3.402823466e+38; String units "m-1 sr-1"; String contentType "modelResult"; String long_name "Molecular Backscatter used"; String description "Molecular Backscatter value used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/cal_c { String HDF5_OBJ_FULLPATH "/profile_1/calibration/cal_c"; Float32 _FillValue 3.402823466e+38; String units "Photons*m^3 *sr / J"; String contentType "modelResult"; String long_name "Calculated Calibration constant"; String description "Calculated calibration constant (one per beam, Defined by Atmosphere ATBD eqn 3.27)"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/delta_time { String HDF5_OBJ_FULLPATH "/profile_1/calibration/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Calibration interval start time"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Derived via Time Tagging"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /profile_1/calibration/cal_con { String HDF5_OBJ_FULLPATH "/profile_1/calibration/cal_con"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "Calibration Confidence"; String description "Calibration Confidence"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/cal_nrb { String HDF5_OBJ_FULLPATH "/profile_1/calibration/cal_nrb"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "NRB value used"; String description "NRB value used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/calibration/longitude_end { String HDF5_OBJ_FULLPATH "/profile_1/calibration/longitude_end"; String units "degrees_east"; String contentType "modelResult"; String long_name "Calibration interval end longitude"; String description "Stop Longitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_1/segment_id { String HDF5_OBJ_FULLPATH "/profile_1/segment_id"; String units "1"; String contentType "referenceInformation"; String long_name "along-track segment ID number."; String description "A 7 digit number identifiying the along-track geolocation segment number. These are sequential, starting with 1 for the first segment after an ascending equatorial crossing node."; String source "ATL03 ATBD, Section 3.1"; String coordinates "delta_time, latitude, longitude"; } /profile_1/surface_bin { String HDF5_OBJ_FULLPATH "/profile_1/surface_bin"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "Surface bin"; String description "Vertially aligned, NRB bin number of the detected surface return."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/solar_elevation { String HDF5_OBJ_FULLPATH "/profile_1/solar_elevation"; String units "degrees"; String contentType "referenceInformation"; String long_name "solar elevation"; String description "Solar Angle above or below the plane tangent to the ellipsoid surface at the laser spot. Positive values mean the sun is above the horizon, while negative values mean it is below the horizon. The effect of atmospheric refraction is not included. This is a low precision value, with approximately TBD degree accuracy."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_count_hi { String HDF5_OBJ_FULLPATH "/profile_1/sig_count_hi"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signa Heightsl - High"; String description "Count of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/dtime_fac2 { String HDF5_OBJ_FULLPATH "/profile_1/dtime_fac2"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "dead_time_factor2"; String description "Dead time correction factor for surface signal computed from ATBD equation 2.1."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_1/prof_dist_x { String HDF5_OBJ_FULLPATH "/profile_1/prof_dist_x"; String units "meters"; String contentType "referenceInformation"; String long_name "Along Track Distance"; String description "Along-track distance from the equator crossing."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/delta_time { String HDF5_OBJ_FULLPATH "/profile_1/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /profile_1/backg_std_dev2 { String HDF5_OBJ_FULLPATH "/profile_1/backg_std_dev2"; String units "counts"; String contentType "modelResult"; String long_name "Background standard deviation 2"; String description "Background standard deviation from the selected method used (Sstd2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/backg_method2 { String HDF5_OBJ_FULLPATH "/profile_1/backg_method2"; String units "counts"; String contentType "modelResult"; String long_name "Background method 2"; String description "Background from method 2 in photons/bin. (pb2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/pce_mframe_cnt { String HDF5_OBJ_FULLPATH "/profile_1/pce_mframe_cnt"; String units "counts"; String contentType "referenceInformation"; String long_name "PCE Major frame counter"; String description "Major Frame Counter - The major frame counter is read from the DFC and starts counting at DFC POR. The counter is used to identify individual major frames across diag and science packets. This counter can go for about 2.7 years before rolling over. It is in the first time tag science packet. Used as part of the photon ID"; String source "ATL02"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sc_alt { String HDF5_OBJ_FULLPATH "/profile_1/sc_alt"; String units "meters"; String contentType "physicalMeasurement"; String long_name "Altitude"; String description "Height of the spacecraft above the WGS84 ellipsoid."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_h_sdev_low { String HDF5_OBJ_FULLPATH "/profile_1/sig_h_sdev_low"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signal Heights -Low"; String description "SDev of the heights of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_h_mean_low { String HDF5_OBJ_FULLPATH "/profile_1/sig_h_mean_low"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "Mean of Signal Heights - Low"; String description "Mean height of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/sig_h_sdev_med { String HDF5_OBJ_FULLPATH "/profile_1/sig_h_sdev_med"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signa Heights -Med"; String description "SDev of the heights of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/nrb_bot_bin { String HDF5_OBJ_FULLPATH "/profile_1/nrb_bot_bin"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "NRB Profile bottom valid bin"; String description "The ending (bottom) bin number within the 20 to -1 km vertically aligned profile where data are valid. Bin number starts at 1."; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /profile_1/surface_sig { String HDF5_OBJ_FULLPATH "/profile_1/surface_sig"; String units "counts"; String contentType "modelResult"; String long_name "Surface signal count"; String description "Number of photons in the detected surface bin."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_1/nrb_top_bin { String HDF5_OBJ_FULLPATH "/profile_1/nrb_top_bin"; Int32 _FillValue 2147483647; String units "counts"; String contentType "modelResult"; String long_name "NRB Profile top valid bin"; String description "The starting (top) bin number within the 20 to -1 km vertically aligned profile where data are valid. Bin number starts at 1."; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /ds_surf_type { String HDF5_OBJ_FULLPATH "/ds_surf_type"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Surface Type Dimension Scale"; String description "Dimension scale indexing the surface type array. Index=1 corresponds to Land; index = 2 corresponds to Ocean; Index = 3 corresponds to SeaIce; Index=4 corresponds to LandIce; Index=5 corresponds to InlandWater"; String flag_meanings "land ocean seaice landice inland_water"; Int32 flag_values 1, 2, 3, 4, 5; Int32 valid_min 1; Int32 valid_max 5; String CLASS "DIMENSION_SCALE"; String NAME "/ds_surf_type"; } /profile_3/ { String HDF5_OBJ_FULLPATH "/profile_3/"; String Description "Each group contains the segments for the strong beam of one Pair Track. As ICESat-2 orbits the earth, sequential transmit pulses illuminate six ground tracks on the surface of the earth. The track width is approximately 14m. The Atmosphere profiles are only reported for the strong beam. Profiles are numbered from the left to the right in the direction of spacecraft travel as: 1 for the left-most pair of beams; 2 for the center pair of beams; and 3 for the right-most pair of beams."; String data_rate "Data in this group is stored at a 25hz (25 per second) rate."; String atlas_pce "pce1"; String atlas_beam_type "strong"; String groundtrack_id "gt3r"; String atmosphere_profile "profile_3"; String atlas_spot_number "1"; String sc_orientation "Forward"; } /profile_3/backg_signal_max2 { String HDF5_OBJ_FULLPATH "/profile_3/backg_signal_max2"; String units "counts"; String contentType "modelResult"; String long_name "Background signal max 2"; String description "Background signal max2, in photons/bin, from the selectd method used. (Sm2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_count_med { String HDF5_OBJ_FULLPATH "/profile_3/sig_count_med"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signal Heights - Medium"; String description "Count of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/backg_std_dev1 { String HDF5_OBJ_FULLPATH "/profile_3/backg_std_dev1"; String units "counts"; String contentType "modelResult"; String long_name "Background standard deviation 1"; String description "Background standard deviation from the selected method used (Sstd1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/dem_flag { String HDF5_OBJ_FULLPATH "/profile_3/dem_flag"; Int16 _FillValue 127; String units "1"; String contentType "referenceInformation"; String long_name "DEM Source Flag"; String description "Indicates source of the DEM height. Values: 0=None, 1=GIMP, 2=GMTED, 3=MSS."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "none gimp gmted mss"; Int16 flag_values 0, 1, 2, 3; Int16 valid_min 0; Int16 valid_max 3; } /profile_3/backg_max_bin1 { String HDF5_OBJ_FULLPATH "/profile_3/backg_max_bin1"; String units "counts"; String contentType "modelResult"; String long_name "Background max bin 1"; String description "Background maximum bin from the selected method used. (Binmax1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/bckgrd_atlas/ { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/"; String Description "Contains the ATLAS 50-shot background data and derivations."; } /profile_3/bckgrd_atlas/bckgrd_counts_reduced { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/bckgrd_counts_reduced"; String units "counts"; String long_name "ATLAS 50-shot background count - reduced"; String description "Number of photon counts in the 50-shot sum after subtracting the number of signal photon events, defined as in ATBD Section 5, in that span."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; String contentType "modelResult"; } /profile_3/bckgrd_atlas/bckgrd_counts { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/bckgrd_counts"; String units "counts"; String contentType "modelResult"; String long_name "ATLAS 50-shot background count"; String description "Onboard 50 shot background (200 Hz) sum of photon events within the altimetric range window."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_3/bckgrd_atlas/delta_time { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Derived via Time Tagging"; String coordinates "delta_time"; String CLASS "DIMENSION_SCALE"; String NAME "profile_3/bckgrd_atlas/delta_time"; } /profile_3/bckgrd_atlas/bckgrd_hist_top { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/bckgrd_hist_top"; String units "meters"; String contentType "modelResult"; String long_name "Top of the altimetric range window"; String description "The height of the top of the altimetric histogram, in meters above the WGS-84 ellipsoid, with all geophysical corrections applied. Parameter is ingested at 50-Hz, and values are repeated to form a 200-Hz array."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_3/bckgrd_atlas/bckgrd_int_height { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/bckgrd_int_height"; String units "meters"; String contentType "modelResult"; String long_name "Altimetric range window width"; String description "The height of the altimetric range window. This is the height over which the 50-shot sum is generated. Parameter is ingested at 50-Hz, and values are repeated to form a 200-Hz array."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_3/bckgrd_atlas/bckgrd_int_height_reduced { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/bckgrd_int_height_reduced"; String units "meters"; String contentType "modelResult"; String long_name "Altimetric range window height - reduced"; String description "The height of the altimetric range window after subtracting the height span of the signal photon events in the 50-shot span."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_3/bckgrd_atlas/bckgrd_rate { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/bckgrd_rate"; String units "counts / second"; String contentType "modelResult"; String long_name "Background count rate based on the ATLAS 50-shot sum"; String description "The background count rate from the 50-shot altimetric histogram after removing the number of likely signal photons based on Section 5."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_3/bckgrd_atlas/pce_mframe_cnt { String HDF5_OBJ_FULLPATH "/profile_3/bckgrd_atlas/pce_mframe_cnt"; String units "counts"; String contentType "referenceInformation"; String long_name "PCE Major frame counter"; String description "Major Frame ID - The major frame ID is read from the DFC and starts counting at DFC POR. The counter is used to identify individual major frames across diag and science packets. This counter can go for about 2.7 years before rolling over. It is in the first time tag science packet. Used as part of the photon ID"; String source "ATL02"; String coordinates "delta_time"; } /profile_3/sig_count_low { String HDF5_OBJ_FULLPATH "/profile_3/sig_count_low"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signal Heights - Low"; String description "Count of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/backg_method1 { String HDF5_OBJ_FULLPATH "/profile_3/backg_method1"; String units "counts"; String contentType "modelResult"; String long_name "Background method 1"; String description "Background from method 1in photons/bin. (pb1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_h_sdev_hi { String HDF5_OBJ_FULLPATH "/profile_3/sig_h_sdev_hi"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signal Heights -High"; String description "SDev of the heights of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/dtime_fac1 { String HDF5_OBJ_FULLPATH "/profile_3/dtime_fac1"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "dead_time_factor1"; String description "Dead time correction factor for surface signal computed from radiometric lookup table."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/atm_tw_top { String HDF5_OBJ_FULLPATH "/profile_3/atm_tw_top"; String units "meters"; String contentType "referenceInformation"; String long_name "Atmospheric Telemetry Window Top"; String description "The geolocated ellipsoidal height at the top of the Atmospheric range window"; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_h_mean_hi { String HDF5_OBJ_FULLPATH "/profile_3/sig_h_mean_hi"; String contentType "referenceInformation"; String long_name "Mean of SignalHeights - High"; String description "Mean height of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; Float32 _FillValue 3.402823466e+38; String units "meters"; } /profile_3/beam_azimuth { String HDF5_OBJ_FULLPATH "/profile_3/beam_azimuth"; Float32 _FillValue 3.402823466e+38; String units "degrees_east"; String contentType "referenceInformation"; String long_name "beam azimuth"; String description "Beam azimuth"; String source "ATL03 ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/range_to_top { String HDF5_OBJ_FULLPATH "/profile_3/range_to_top"; String units "meters"; String contentType "referenceInformation"; String long_name "Range"; String description "Range from the spacecraft to the top of the atmosphere range window."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/solar_azimuth { String HDF5_OBJ_FULLPATH "/profile_3/solar_azimuth"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "solar azimuth"; String description "The direction, eastwards from north, of the sun vector as seen by an observer at the laser ground spot."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/longitude { String HDF5_OBJ_FULLPATH "/profile_3/longitude"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "Longitude of the ATM histogram"; String standard_name "longitude"; String description "Longitude at the the top of the ATM histogram, WGS84, East=+, derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_3/backg_max_bin2 { String HDF5_OBJ_FULLPATH "/profile_3/backg_max_bin2"; String units "counts"; String contentType "modelResult"; String long_name "Background max bin 2"; String description "Background maximum bin2 from the selected method used. (Binmax2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/latitude { String HDF5_OBJ_FULLPATH "/profile_3/latitude"; String units "degrees_north"; String contentType "referenceInformation"; String long_name "Latitude of the ATM histogram"; String standard_name "latitude"; String description "Latitude at the the top of the ATM histogram, WGS84, North=+, Derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /profile_3/surf_type { String HDF5_OBJ_FULLPATH "/profile_3/surf_type"; String units "1"; String contentType "referenceInformation"; String long_name "Surface Type"; String description "Flags describing which surface types this interval is associated with. 0=not type, 1=is type. Order of array is land, ocean, sea ice, land ice, inland water."; String source "ATL03 ATBD, Section 4"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "not_type is_type"; Int16 flag_values 0, 1; Int16 valid_min 0; Int16 valid_max 1; } /profile_3/atm_rw_width_m { String HDF5_OBJ_FULLPATH "/profile_3/atm_rw_width_m"; String units "seconds"; String contentType "referenceInformation"; String long_name "Atmospheric Range Window Width"; String description "The range, in meters, from the Atmospheric range window start to the range window stop."; String source "ATL02"; String coordinates "delta_time, latitude, longitude"; } /profile_3/backg_method3 { String HDF5_OBJ_FULLPATH "/profile_3/backg_method3"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "Background method 3"; String description "Background from method 3 in photons/bin. (Defined in Atmosphere ATBD section 3.3.4)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/surf_type_igbp { String HDF5_OBJ_FULLPATH "/profile_3/surf_type_igbp"; String units "1"; String long_name "IGBP Surface Type"; String description "IGBP Surface Type"; String source "Atmosphere ATBD, IGBP Surface Type"; String coordinates "delta_time, latitude, longitude"; String contentType "referenceInformation"; } /profile_3/sig_h_mean_med { String HDF5_OBJ_FULLPATH "/profile_3/sig_h_mean_med"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "Mean of Signa Heightsl - Med"; String description "Mean height of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/backg_signal_max1 { String HDF5_OBJ_FULLPATH "/profile_3/backg_signal_max1"; String units "counts"; String long_name "Background signal max 1"; String description "Background signal ma1x, in photons/bin, from the selectd method used. (Sm1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; String contentType "modelResult"; } /profile_3/dem_h { String HDF5_OBJ_FULLPATH "/profile_3/dem_h"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "DEM Height"; String description "Best available DEM (in priority of GIMP/GMTED/MSS) value at the geolocation point."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/tx_pulse_energy { String HDF5_OBJ_FULLPATH "/profile_3/tx_pulse_energy"; String units "Joules"; String contentType "referenceInformation"; String long_name "Transmit Pulse Energy"; String description "The average transmit pulse energy recorded by the Start Pulse Detector, split into per-beam measurements."; String source "ATL02 ATBD, Section 7.2"; String coordinates "delta_time, latitude, longitude"; } /profile_3/surface_height { String HDF5_OBJ_FULLPATH "/profile_3/surface_height"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "modelResult"; String long_name "Surface height"; String description "Height of the detected surface bin."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/nrb_profile { String HDF5_OBJ_FULLPATH "/profile_3/nrb_profile"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "NRB Profile"; String description "Normalize relative backscatter (NRB) profile vertically aligned to 20 to -1 km with vertical resolution of 30 m. (Photons km2/Joule)"; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /profile_3/backg_mean2 { String HDF5_OBJ_FULLPATH "/profile_3/backg_mean2"; String units "counts"; String contentType "modelResult"; String long_name "Signal mean"; String description "Signal mean from method 2 (pb2 defined in Atmosphere ATBD part 1 section 2.3.4)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/prof_dist_y { String HDF5_OBJ_FULLPATH "/profile_3/prof_dist_y"; String units "meters"; String contentType "referenceInformation"; String long_name "Across Track Distance from RGT"; String description "Across-Track distance from the reference ground track."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/beam_elevation { String HDF5_OBJ_FULLPATH "/profile_3/beam_elevation"; Float32 _FillValue 3.402823466e+38; String units "degrees"; String contentType "referenceInformation"; String long_name "beam elevation"; String description "Beam elevation"; String source "ATL03 ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/ { String HDF5_OBJ_FULLPATH "/profile_3/calibration/"; String Description "Contains calibration data associated with a PCE strong beam."; String data_rate "Data within this group stored at a low rate corresponding to the number of times ATLAS passes with the calibration boundary conditions (lat > 60 and solar_angle > 90)/"; } /profile_3/calibration/delta_time_end { String HDF5_OBJ_FULLPATH "/profile_3/calibration/delta_time_end"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Calibration interval end time"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch where the cal interval ended. The corresponding start time of the interval is delta_time. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/cal_ozone_trans { String HDF5_OBJ_FULLPATH "/profile_3/calibration/cal_ozone_trans"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "Ozone transmission used"; String description "Ozone transmission term used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/cal_c_trans { String HDF5_OBJ_FULLPATH "/profile_3/calibration/cal_c_trans"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "total transmission used"; String description "The total transmission used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/longitude { String HDF5_OBJ_FULLPATH "/profile_3/calibration/longitude"; String units "degrees_east"; String contentType "modelResult"; String long_name "Calibration interval start longitude"; String standard_name "longitude"; String description "Start Longitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_3/calibration/latitude_end { String HDF5_OBJ_FULLPATH "/profile_3/calibration/latitude_end"; String units "degrees_north"; String contentType "modelResult"; String long_name "Calibration interval end latitude"; String description "Stop Latitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /profile_3/calibration/latitude { String HDF5_OBJ_FULLPATH "/profile_3/calibration/latitude"; String units "degrees_north"; String long_name "Calibration interval start Latitude"; String standard_name "latitude"; String description "Start Latitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; String contentType "modelResult"; } /profile_3/calibration/cal_molec { String HDF5_OBJ_FULLPATH "/profile_3/calibration/cal_molec"; Float32 _FillValue 3.402823466e+38; String units "m-1 sr-1"; String contentType "modelResult"; String long_name "Molecular Backscatter used"; String description "Molecular Backscatter value used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/cal_c { String HDF5_OBJ_FULLPATH "/profile_3/calibration/cal_c"; Float32 _FillValue 3.402823466e+38; String units "Photons*m^3 *sr / J"; String contentType "modelResult"; String long_name "Calculated Calibration constant"; String description "Calculated calibration constant (one per beam, Defined by Atmosphere ATBD eqn 3.27)"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/delta_time { String HDF5_OBJ_FULLPATH "/profile_3/calibration/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Calibration interval start time"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Derived via Time Tagging"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /profile_3/calibration/cal_con { String HDF5_OBJ_FULLPATH "/profile_3/calibration/cal_con"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "Calibration Confidence"; String description "Calibration Confidence"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/cal_nrb { String HDF5_OBJ_FULLPATH "/profile_3/calibration/cal_nrb"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "NRB value used"; String description "NRB value used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/calibration/longitude_end { String HDF5_OBJ_FULLPATH "/profile_3/calibration/longitude_end"; String units "degrees_east"; String contentType "modelResult"; String long_name "Calibration interval end longitude"; String description "Stop Longitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_3/segment_id { String HDF5_OBJ_FULLPATH "/profile_3/segment_id"; String units "1"; String contentType "referenceInformation"; String long_name "along-track segment ID number."; String description "A 7 digit number identifiying the along-track geolocation segment number. These are sequential, starting with 1 for the first segment after an ascending equatorial crossing node."; String source "ATL03 ATBD, Section 3.1"; String coordinates "delta_time, latitude, longitude"; } /profile_3/surface_bin { String HDF5_OBJ_FULLPATH "/profile_3/surface_bin"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "Surface bin"; String description "Vertially aligned, NRB bin number of the detected surface return."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/solar_elevation { String HDF5_OBJ_FULLPATH "/profile_3/solar_elevation"; String units "degrees"; String contentType "referenceInformation"; String long_name "solar elevation"; String description "Solar Angle above or below the plane tangent to the ellipsoid surface at the laser spot. Positive values mean the sun is above the horizon, while negative values mean it is below the horizon. The effect of atmospheric refraction is not included. This is a low precision value, with approximately TBD degree accuracy."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_count_hi { String HDF5_OBJ_FULLPATH "/profile_3/sig_count_hi"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signa Heightsl - High"; String description "Count of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/dtime_fac2 { String HDF5_OBJ_FULLPATH "/profile_3/dtime_fac2"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "dead_time_factor2"; String description "Dead time correction factor for surface signal computed from ATBD equation 2.1."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_3/prof_dist_x { String HDF5_OBJ_FULLPATH "/profile_3/prof_dist_x"; String units "meters"; String contentType "referenceInformation"; String long_name "Along Track Distance"; String description "Along-track distance from the equator crossing."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/delta_time { String HDF5_OBJ_FULLPATH "/profile_3/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /profile_3/backg_std_dev2 { String HDF5_OBJ_FULLPATH "/profile_3/backg_std_dev2"; String units "counts"; String contentType "modelResult"; String long_name "Background standard deviation 2"; String description "Background standard deviation from the selected method used (Sstd2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/backg_method2 { String HDF5_OBJ_FULLPATH "/profile_3/backg_method2"; String units "counts"; String contentType "modelResult"; String long_name "Background method 2"; String description "Background from method 2 in photons/bin. (pb2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/pce_mframe_cnt { String HDF5_OBJ_FULLPATH "/profile_3/pce_mframe_cnt"; String units "counts"; String contentType "referenceInformation"; String long_name "PCE Major frame counter"; String description "Major Frame Counter - The major frame counter is read from the DFC and starts counting at DFC POR. The counter is used to identify individual major frames across diag and science packets. This counter can go for about 2.7 years before rolling over. It is in the first time tag science packet. Used as part of the photon ID"; String source "ATL02"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sc_alt { String HDF5_OBJ_FULLPATH "/profile_3/sc_alt"; String units "meters"; String contentType "physicalMeasurement"; String long_name "Altitude"; String description "Height of the spacecraft above the WGS84 ellipsoid."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_h_sdev_low { String HDF5_OBJ_FULLPATH "/profile_3/sig_h_sdev_low"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signal Heights -Low"; String description "SDev of the heights of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_h_mean_low { String HDF5_OBJ_FULLPATH "/profile_3/sig_h_mean_low"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "Mean of Signal Heights - Low"; String description "Mean height of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/sig_h_sdev_med { String HDF5_OBJ_FULLPATH "/profile_3/sig_h_sdev_med"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signa Heights -Med"; String description "SDev of the heights of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/nrb_bot_bin { String HDF5_OBJ_FULLPATH "/profile_3/nrb_bot_bin"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "NRB Profile bottom valid bin"; String description "The ending (bottom) bin number within the 20 to -1 km vertically aligned profile where data are valid. Bin number starts at 1."; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /profile_3/surface_sig { String HDF5_OBJ_FULLPATH "/profile_3/surface_sig"; String units "counts"; String contentType "modelResult"; String long_name "Surface signal count"; String description "Number of photons in the detected surface bin."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_3/nrb_top_bin { String HDF5_OBJ_FULLPATH "/profile_3/nrb_top_bin"; Int32 _FillValue 2147483647; String units "counts"; String contentType "modelResult"; String long_name "NRB Profile top valid bin"; String description "The starting (top) bin number within the 20 to -1 km vertically aligned profile where data are valid. Bin number starts at 1."; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /quality_assessment/ { String HDF5_OBJ_FULLPATH "/quality_assessment/"; String Description "Contains quality assessment data. This may include QA counters, QA along-track data and/or QA summary data."; } /quality_assessment/qa_granule_fail_reason { String HDF5_OBJ_FULLPATH "/quality_assessment/qa_granule_fail_reason"; String units "1"; String contentType "qualityInformation"; String description "Flag indicating granule failure reason. 0=no failure; 1=processing error; 2=Insufficient output data was generated; 3=TBD Failure; 4=TBD_Failure; 5=other failure."; String source "Operations"; String flag_meanings "no_failure PROCESS_ERROR INSUFFICIENT_OUTPUT failure_3 failure_4 OTHER_FAILURE"; Int32 flag_values 0, 1, 2, 3, 4, 5; Int32 valid_min 0; Int32 valid_max 5; String long_name "Granule Failure Reason"; } /quality_assessment/qa_granule_pass_fail { String HDF5_OBJ_FULLPATH "/quality_assessment/qa_granule_pass_fail"; String units "1"; String contentType "qualityInformation"; String description "Flag indicating granule quality. 0=granule passes automatic QA. 1=granule fails automatic QA."; String source "Operations"; String flag_meanings "PASS FAIL"; Int32 flag_values 0, 1; Int32 valid_min 0; Int32 valid_max 1; String long_name "Granule Pass Flag"; } /meteorology_molec_bkscat/ { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/"; String Description "Contains sampled GEOS5_FPIT meteorological model data and molecular backscatter. This data is created from the time/locations of the center profile."; String data_rate "Data in this group is stored at a 1hz (1 per second) rate."; } /meteorology_molec_bkscat/met_tropt { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_tropt"; String units "K"; String contentType "referenceInformation"; String long_name "blended_tropopause_temperature"; String standard_name "temperature"; String description "Tropopause temperature (k)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/mol_backs_folded { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/mol_backs_folded"; String units "m-1 sr-1"; String contentType "modelResult"; String long_name "Folded molecular transmission profile"; String description "Folded molecular transmission profile, 30 m resolution, , m-1 sr-1; 20 km to -1 km (equation 3.17)"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/ozone_trans { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/ozone_trans"; String units "1"; String contentType "modelResult"; String long_name "Ozone transmission profile"; String description "Ozone transmission profile, 30 m resolution, 20 km to -1 km"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/molec_bkscat_p { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/molec_bkscat_p"; String units "Pa"; String contentType "modelResult"; String long_name "Pressure profile"; String description "Pressure profiles from 20 km to -1 km"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_t2m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_t2m"; String units "K"; String long_name "temperature_at_2m"; String standard_name "temperature"; String description "Temperature at 2m above the displacement height (K)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; String contentType "referenceInformation"; } /meteorology_molec_bkscat/met_u2m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_u2m"; String units "m s-1"; String contentType "referenceInformation"; String long_name "Eastward_wind_at_2m"; String standard_name "eastward_wind"; String description "Eastward wind at 2m above the displacement height (m/s-1)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_u10m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_u10m"; String units "m s-1"; String contentType "referenceInformation"; String long_name "Eastward_wind_at_10m"; String standard_name "eastward_wind"; String description "Eastward wind at 10m above the displacement height (m/s-1)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/molec_trans { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/molec_trans"; String units "1"; String contentType "modelResult"; String long_name "Molecular transmission profile"; String description "Molecular transmission profile, 30 m resolution, 20 km to -1 km"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_cldprs { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_cldprs"; String units "Pa"; String contentType "referenceInformation"; String long_name "cloud_top_pressure"; String standard_name "pressure"; String description "Pressure of the highest cloud top at this location from GEOS5 data"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_v50m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_v50m"; String units "m s-1"; String contentType "referenceInformation"; String long_name "northward_wind_at_50m"; String standard_name "northward_wind"; String description "Northward wind at 50m above the displacement height (m/s-1)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_v10m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_v10m"; String units "m s-1"; String contentType "referenceInformation"; String long_name "Northward_wind_at_10m"; String standard_name "northward_wind"; String description "Northward wind at 10m above the displacement height (m/s-1)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/longitude { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/longitude"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "Longitude of the ATM histogram"; String standard_name "longitude"; String description "Longitude at the the top of the ATM histogram, WGS84, East=+, derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /meteorology_molec_bkscat/met_ps { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_ps"; String units "Pa"; String contentType "referenceInformation"; String long_name "Surface Pressure"; String standard_name "pressure"; String description "Surface Pressure (Pa)"; String source "GEOS5 FPIT 3D DFPITI3NVASM"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/latitude { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/latitude"; String units "degrees_north"; String contentType "referenceInformation"; String long_name "Latitude of the ATM histogram"; String standard_name "latitude"; String description "Latitude at the the top of the ATM histogram, WGS84, North=+, Derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /meteorology_molec_bkscat/surf_type { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/surf_type"; String units "1"; String contentType "referenceInformation"; String long_name "Surface Type"; String description "Flags describing which surface types this interval is associated with. 0=not type, 1=is type. Order of array is land, ocean, sea ice, land ice, inland water."; String source "ATL03 ATBD, Section 4"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "not_type is_type"; Int16 flag_values 0, 1; Int16 valid_min 0; Int16 valid_max 1; } /meteorology_molec_bkscat/met_qv10m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_qv10m"; String units "kg kg-1"; String contentType "referenceInformation"; String long_name "specific_humidity_at_10m"; String standard_name "specific_humidity"; String description "Specific humidity at 10 m above the displacement height (Pa)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_tqi { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_tqi"; String units "kg m2"; String contentType "referenceInformation"; String long_name "cloud_ice"; String description "Total column cloud ice (Kg/m2)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_t10m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_t10m"; String units "K"; String contentType "referenceInformation"; String long_name "temperature_at_10m"; String standard_name "temperature"; String description "Temperature at 10m above the displacement height (K)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_tql { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_tql"; String units "kg m2"; String contentType "referenceInformation"; String long_name "cloud_liquid_water"; String description "Total column cloud liquid water (kg/m2)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_v2m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_v2m"; String units "m s-1"; String contentType "referenceInformation"; String long_name "Northward_wind_at_2m"; String standard_name "northward_wind"; String description "Northward wind at 2m above the displacement height (m/s-1)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_ts { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_ts"; String units "K"; String contentType "referenceInformation"; String long_name "surface_temperature"; String standard_name "temperature"; String description "Surface skin temperature (K)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/segment_id { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/segment_id"; String units "1"; String contentType "referenceInformation"; String long_name "along-track segment ID number."; String description "A 7 digit number identifiying the along-track geolocation segment number. These are sequential, starting with 1 for the first segment after an ascending equatorial crossing node."; String source "ATL03 ATBD, Section 3.1"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_qv2m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_qv2m"; String units "kg kg-1"; String contentType "referenceInformation"; String long_name "specific_humidity_at_2m"; String standard_name "specific_humidity"; String description "Specific humidity at 2 m above the displacement height (Pa)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/delta_time { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /meteorology_molec_bkscat/molec_bkscat_t { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/molec_bkscat_t"; String units "degreesC"; String contentType "modelResult"; String long_name "Temperature profile"; String description "Temperature profiles from 20 km to -1 km"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_u50m { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_u50m"; String units "m s-1"; String contentType "referenceInformation"; String long_name "Eastward_wind_at_50m"; String standard_name "eastward_wind"; String description "Eastward wind at 50m above the displacement height (m/s-1)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/met_troppb { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/met_troppb"; String units "Pa"; String contentType "referenceInformation"; String long_name "blended_tropopause_pressure"; String standard_name "pressure"; String description "Blended tropopause pressure (pa)"; String source "GEOS5 FPIT 2D DFPITT1NXSLV"; String coordinates "delta_time, latitude, longitude"; } /meteorology_molec_bkscat/mol_backscatter { String HDF5_OBJ_FULLPATH "/meteorology_molec_bkscat/mol_backscatter"; String units "m-1 sr-1"; String contentType "modelResult"; String long_name "Molecular backscatter profile"; String description "Molecular backscatter profile, 30 m resolution, 20 km to -1 km"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/ { String HDF5_OBJ_FULLPATH "/profile_2/"; String Description "Each group contains the segments for the strong beam of one Pair Track. As ICESat-2 orbits the earth, sequential transmit pulses illuminate six ground tracks on the surface of the earth. The track width is approximately 14m. The Atmosphere profiles are only reported for the strong beam. Profiles are numbered from the left to the right in the direction of spacecraft travel as: 1 for the left-most pair of beams; 2 for the center pair of beams; and 3 for the right-most pair of beams."; String data_rate "Data in this group is stored at a 25hz (25 per second) rate."; String atlas_pce "pce2"; String atlas_beam_type "strong"; String groundtrack_id "gt2r"; String atmosphere_profile "profile_2"; String atlas_spot_number "3"; String sc_orientation "Forward"; } /profile_2/backg_signal_max2 { String HDF5_OBJ_FULLPATH "/profile_2/backg_signal_max2"; String units "counts"; String contentType "modelResult"; String long_name "Background signal max 2"; String description "Background signal max2, in photons/bin, from the selectd method used. (Sm2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_count_med { String HDF5_OBJ_FULLPATH "/profile_2/sig_count_med"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signal Heights - Medium"; String description "Count of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/backg_std_dev1 { String HDF5_OBJ_FULLPATH "/profile_2/backg_std_dev1"; String units "counts"; String contentType "modelResult"; String long_name "Background standard deviation 1"; String description "Background standard deviation from the selected method used (Sstd1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/dem_flag { String HDF5_OBJ_FULLPATH "/profile_2/dem_flag"; Int16 _FillValue 127; String units "1"; String contentType "referenceInformation"; String long_name "DEM Source Flag"; String description "Indicates source of the DEM height. Values: 0=None, 1=GIMP, 2=GMTED, 3=MSS."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "none gimp gmted mss"; Int16 flag_values 0, 1, 2, 3; Int16 valid_min 0; Int16 valid_max 3; } /profile_2/backg_max_bin1 { String HDF5_OBJ_FULLPATH "/profile_2/backg_max_bin1"; String units "counts"; String contentType "modelResult"; String long_name "Background max bin 1"; String description "Background maximum bin from the selected method used. (Binmax1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/bckgrd_atlas/ { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/"; String Description "Contains the ATLAS 50-shot background data and derivations."; } /profile_2/bckgrd_atlas/bckgrd_counts_reduced { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/bckgrd_counts_reduced"; String units "counts"; String long_name "ATLAS 50-shot background count - reduced"; String description "Number of photon counts in the 50-shot sum after subtracting the number of signal photon events, defined as in ATBD Section 5, in that span."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; String contentType "modelResult"; } /profile_2/bckgrd_atlas/bckgrd_counts { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/bckgrd_counts"; String units "counts"; String contentType "modelResult"; String long_name "ATLAS 50-shot background count"; String description "Onboard 50 shot background (200 Hz) sum of photon events within the altimetric range window."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_2/bckgrd_atlas/delta_time { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Derived via Time Tagging"; String coordinates "delta_time"; String CLASS "DIMENSION_SCALE"; String NAME "profile_2/bckgrd_atlas/delta_time"; } /profile_2/bckgrd_atlas/bckgrd_hist_top { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/bckgrd_hist_top"; String units "meters"; String contentType "modelResult"; String long_name "Top of the altimetric range window"; String description "The height of the top of the altimetric histogram, in meters above the WGS-84 ellipsoid, with all geophysical corrections applied. Parameter is ingested at 50-Hz, and values are repeated to form a 200-Hz array."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_2/bckgrd_atlas/bckgrd_int_height { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/bckgrd_int_height"; String units "meters"; String contentType "modelResult"; String long_name "Altimetric range window width"; String description "The height of the altimetric range window. This is the height over which the 50-shot sum is generated. Parameter is ingested at 50-Hz, and values are repeated to form a 200-Hz array."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_2/bckgrd_atlas/bckgrd_int_height_reduced { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/bckgrd_int_height_reduced"; String units "meters"; String contentType "modelResult"; String long_name "Altimetric range window height - reduced"; String description "The height of the altimetric range window after subtracting the height span of the signal photon events in the 50-shot span."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_2/bckgrd_atlas/bckgrd_rate { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/bckgrd_rate"; String units "counts / second"; String contentType "modelResult"; String long_name "Background count rate based on the ATLAS 50-shot sum"; String description "The background count rate from the 50-shot altimetric histogram after removing the number of likely signal photons based on Section 5."; String source "ATL03 ATBD Section 7.3"; String coordinates "delta_time"; } /profile_2/bckgrd_atlas/pce_mframe_cnt { String HDF5_OBJ_FULLPATH "/profile_2/bckgrd_atlas/pce_mframe_cnt"; String units "counts"; String contentType "referenceInformation"; String long_name "PCE Major frame counter"; String description "Major Frame ID - The major frame ID is read from the DFC and starts counting at DFC POR. The counter is used to identify individual major frames across diag and science packets. This counter can go for about 2.7 years before rolling over. It is in the first time tag science packet. Used as part of the photon ID"; String source "ATL02"; String coordinates "delta_time"; } /profile_2/sig_count_low { String HDF5_OBJ_FULLPATH "/profile_2/sig_count_low"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signal Heights - Low"; String description "Count of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/backg_method1 { String HDF5_OBJ_FULLPATH "/profile_2/backg_method1"; String units "counts"; String contentType "modelResult"; String long_name "Background method 1"; String description "Background from method 1in photons/bin. (pb1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_h_sdev_hi { String HDF5_OBJ_FULLPATH "/profile_2/sig_h_sdev_hi"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signal Heights -High"; String description "SDev of the heights of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/dtime_fac1 { String HDF5_OBJ_FULLPATH "/profile_2/dtime_fac1"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "dead_time_factor1"; String description "Dead time correction factor for surface signal computed from radiometric lookup table."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/atm_tw_top { String HDF5_OBJ_FULLPATH "/profile_2/atm_tw_top"; String units "meters"; String contentType "referenceInformation"; String long_name "Atmospheric Telemetry Window Top"; String description "The geolocated ellipsoidal height at the top of the Atmospheric range window"; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_h_mean_hi { String HDF5_OBJ_FULLPATH "/profile_2/sig_h_mean_hi"; String contentType "referenceInformation"; String long_name "Mean of SignalHeights - High"; String description "Mean height of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; Float32 _FillValue 3.402823466e+38; String units "meters"; } /profile_2/beam_azimuth { String HDF5_OBJ_FULLPATH "/profile_2/beam_azimuth"; Float32 _FillValue 3.402823466e+38; String units "degrees_east"; String contentType "referenceInformation"; String long_name "beam azimuth"; String description "Beam azimuth"; String source "ATL03 ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/range_to_top { String HDF5_OBJ_FULLPATH "/profile_2/range_to_top"; String units "meters"; String contentType "referenceInformation"; String long_name "Range"; String description "Range from the spacecraft to the top of the atmosphere range window."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/solar_azimuth { String HDF5_OBJ_FULLPATH "/profile_2/solar_azimuth"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "solar azimuth"; String description "The direction, eastwards from north, of the sun vector as seen by an observer at the laser ground spot."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/longitude { String HDF5_OBJ_FULLPATH "/profile_2/longitude"; String units "degrees_east"; String contentType "referenceInformation"; String long_name "Longitude of the ATM histogram"; String standard_name "longitude"; String description "Longitude at the the top of the ATM histogram, WGS84, East=+, derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_2/backg_max_bin2 { String HDF5_OBJ_FULLPATH "/profile_2/backg_max_bin2"; String units "counts"; String contentType "modelResult"; String long_name "Background max bin 2"; String description "Background maximum bin2 from the selected method used. (Binmax2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/latitude { String HDF5_OBJ_FULLPATH "/profile_2/latitude"; String units "degrees_north"; String contentType "referenceInformation"; String long_name "Latitude of the ATM histogram"; String standard_name "latitude"; String description "Latitude at the the top of the ATM histogram, WGS84, North=+, Derived from the geolocation of the ATM range window."; String source "ATL03g ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /profile_2/surf_type { String HDF5_OBJ_FULLPATH "/profile_2/surf_type"; String units "1"; String contentType "referenceInformation"; String long_name "Surface Type"; String description "Flags describing which surface types this interval is associated with. 0=not type, 1=is type. Order of array is land, ocean, sea ice, land ice, inland water."; String source "ATL03 ATBD, Section 4"; String coordinates "delta_time, latitude, longitude"; String flag_meanings "not_type is_type"; Int16 flag_values 0, 1; Int16 valid_min 0; Int16 valid_max 1; } /profile_2/atm_rw_width_m { String HDF5_OBJ_FULLPATH "/profile_2/atm_rw_width_m"; String units "seconds"; String contentType "referenceInformation"; String long_name "Atmospheric Range Window Width"; String description "The range, in meters, from the Atmospheric range window start to the range window stop."; String source "ATL02"; String coordinates "delta_time, latitude, longitude"; } /profile_2/backg_method3 { String HDF5_OBJ_FULLPATH "/profile_2/backg_method3"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "Background method 3"; String description "Background from method 3 in photons/bin. (Defined in Atmosphere ATBD section 3.3.4)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/surf_type_igbp { String HDF5_OBJ_FULLPATH "/profile_2/surf_type_igbp"; String units "1"; String long_name "IGBP Surface Type"; String description "IGBP Surface Type"; String source "Atmosphere ATBD, IGBP Surface Type"; String coordinates "delta_time, latitude, longitude"; String contentType "referenceInformation"; } /profile_2/sig_h_mean_med { String HDF5_OBJ_FULLPATH "/profile_2/sig_h_mean_med"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "Mean of Signa Heightsl - Med"; String description "Mean height of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/backg_signal_max1 { String HDF5_OBJ_FULLPATH "/profile_2/backg_signal_max1"; String units "counts"; String long_name "Background signal max 1"; String description "Background signal ma1x, in photons/bin, from the selectd method used. (Sm1 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; String contentType "modelResult"; } /profile_2/dem_h { String HDF5_OBJ_FULLPATH "/profile_2/dem_h"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "DEM Height"; String description "Best available DEM (in priority of GIMP/GMTED/MSS) value at the geolocation point."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/tx_pulse_energy { String HDF5_OBJ_FULLPATH "/profile_2/tx_pulse_energy"; String units "Joules"; String contentType "referenceInformation"; String long_name "Transmit Pulse Energy"; String description "The average transmit pulse energy recorded by the Start Pulse Detector, split into per-beam measurements."; String source "ATL02 ATBD, Section 7.2"; String coordinates "delta_time, latitude, longitude"; } /profile_2/surface_height { String HDF5_OBJ_FULLPATH "/profile_2/surface_height"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "modelResult"; String long_name "Surface height"; String description "Height of the detected surface bin."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/nrb_profile { String HDF5_OBJ_FULLPATH "/profile_2/nrb_profile"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "NRB Profile"; String description "Normalize relative backscatter (NRB) profile vertically aligned to 20 to -1 km with vertical resolution of 30 m. (Photons km2/Joule)"; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /profile_2/backg_mean2 { String HDF5_OBJ_FULLPATH "/profile_2/backg_mean2"; String units "counts"; String contentType "modelResult"; String long_name "Signal mean"; String description "Signal mean from method 2 (pb2 defined in Atmosphere ATBD part 1 section 2.3.4)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/prof_dist_y { String HDF5_OBJ_FULLPATH "/profile_2/prof_dist_y"; String units "meters"; String contentType "referenceInformation"; String long_name "Across Track Distance from RGT"; String description "Across-Track distance from the reference ground track."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/beam_elevation { String HDF5_OBJ_FULLPATH "/profile_2/beam_elevation"; Float32 _FillValue 3.402823466e+38; String units "degrees"; String contentType "referenceInformation"; String long_name "beam elevation"; String description "Beam elevation"; String source "ATL03 ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/ { String HDF5_OBJ_FULLPATH "/profile_2/calibration/"; String Description "Contains calibration data associated with a PCE strong beam."; String data_rate "Data within this group stored at a low rate corresponding to the number of times ATLAS passes with the calibration boundary conditions (lat > 60 and solar_angle > 90)/"; } /profile_2/calibration/delta_time_end { String HDF5_OBJ_FULLPATH "/profile_2/calibration/delta_time_end"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Calibration interval end time"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch where the cal interval ended. The corresponding start time of the interval is delta_time. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/cal_ozone_trans { String HDF5_OBJ_FULLPATH "/profile_2/calibration/cal_ozone_trans"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "Ozone transmission used"; String description "Ozone transmission term used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/cal_c_trans { String HDF5_OBJ_FULLPATH "/profile_2/calibration/cal_c_trans"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "total transmission used"; String description "The total transmission used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/longitude { String HDF5_OBJ_FULLPATH "/profile_2/calibration/longitude"; String units "degrees_east"; String contentType "modelResult"; String long_name "Calibration interval start longitude"; String standard_name "longitude"; String description "Start Longitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_2/calibration/latitude_end { String HDF5_OBJ_FULLPATH "/profile_2/calibration/latitude_end"; String units "degrees_north"; String contentType "modelResult"; String long_name "Calibration interval end latitude"; String description "Stop Latitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; } /profile_2/calibration/latitude { String HDF5_OBJ_FULLPATH "/profile_2/calibration/latitude"; String units "degrees_north"; String long_name "Calibration interval start Latitude"; String standard_name "latitude"; String description "Start Latitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, longitude"; Float64 valid_min -90.; Float64 valid_max 90.; String contentType "modelResult"; } /profile_2/calibration/cal_molec { String HDF5_OBJ_FULLPATH "/profile_2/calibration/cal_molec"; Float32 _FillValue 3.402823466e+38; String units "m-1 sr-1"; String contentType "modelResult"; String long_name "Molecular Backscatter used"; String description "Molecular Backscatter value used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/cal_c { String HDF5_OBJ_FULLPATH "/profile_2/calibration/cal_c"; Float32 _FillValue 3.402823466e+38; String units "Photons*m^3 *sr / J"; String contentType "modelResult"; String long_name "Calculated Calibration constant"; String description "Calculated calibration constant (one per beam, Defined by Atmosphere ATBD eqn 3.27)"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/delta_time { String HDF5_OBJ_FULLPATH "/profile_2/calibration/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Calibration interval start time"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Derived via Time Tagging"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /profile_2/calibration/cal_con { String HDF5_OBJ_FULLPATH "/profile_2/calibration/cal_con"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "Calibration Confidence"; String description "Calibration Confidence"; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/cal_nrb { String HDF5_OBJ_FULLPATH "/profile_2/calibration/cal_nrb"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "NRB value used"; String description "NRB value used to compute cal_const."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/calibration/longitude_end { String HDF5_OBJ_FULLPATH "/profile_2/calibration/longitude_end"; String units "degrees_east"; String contentType "modelResult"; String long_name "Calibration interval end longitude"; String description "Stop Longitude of calibration interval."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; Float64 valid_min -180.; Float64 valid_max 180.; } /profile_2/segment_id { String HDF5_OBJ_FULLPATH "/profile_2/segment_id"; String units "1"; String contentType "referenceInformation"; String long_name "along-track segment ID number."; String description "A 7 digit number identifiying the along-track geolocation segment number. These are sequential, starting with 1 for the first segment after an ascending equatorial crossing node."; String source "ATL03 ATBD, Section 3.1"; String coordinates "delta_time, latitude, longitude"; } /profile_2/surface_bin { String HDF5_OBJ_FULLPATH "/profile_2/surface_bin"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "Surface bin"; String description "Vertially aligned, NRB bin number of the detected surface return."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/solar_elevation { String HDF5_OBJ_FULLPATH "/profile_2/solar_elevation"; String units "degrees"; String contentType "referenceInformation"; String long_name "solar elevation"; String description "Solar Angle above or below the plane tangent to the ellipsoid surface at the laser spot. Positive values mean the sun is above the horizon, while negative values mean it is below the horizon. The effect of atmospheric refraction is not included. This is a low precision value, with approximately TBD degree accuracy."; String source "ATL03g ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_count_hi { String HDF5_OBJ_FULLPATH "/profile_2/sig_count_hi"; String units "counts"; String contentType "referenceInformation"; String long_name "Count of Signa Heightsl - High"; String description "Count of high-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/dtime_fac2 { String HDF5_OBJ_FULLPATH "/profile_2/dtime_fac2"; Float32 _FillValue 3.402823466e+38; String units "1"; String contentType "modelResult"; String long_name "dead_time_factor2"; String description "Dead time correction factor for surface signal computed from ATBD equation 2.1."; String source "Atmosphere ATBD"; String coordinates "delta_time, latitude, longitude"; } /profile_2/prof_dist_x { String HDF5_OBJ_FULLPATH "/profile_2/prof_dist_x"; String units "meters"; String contentType "referenceInformation"; String long_name "Along Track Distance"; String description "Along-track distance from the equator crossing."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/delta_time { String HDF5_OBJ_FULLPATH "/profile_2/delta_time"; String units "seconds since 2018-01-01"; String contentType "modelResult"; String long_name "Elapsed GPS seconds"; String standard_name "time"; String description "Number of GPS seconds since the ATLAS SDP epoch. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed."; String source "Atmosphere ATBD"; String coordinates "latitude, longitude"; String CLASS "DIMENSION_SCALE"; } /profile_2/backg_std_dev2 { String HDF5_OBJ_FULLPATH "/profile_2/backg_std_dev2"; String units "counts"; String contentType "modelResult"; String long_name "Background standard deviation 2"; String description "Background standard deviation from the selected method used (Sstd2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/backg_method2 { String HDF5_OBJ_FULLPATH "/profile_2/backg_method2"; String units "counts"; String contentType "modelResult"; String long_name "Background method 2"; String description "Background from method 2 in photons/bin. (pb2 Defined in Atmosphere ATBD section 2.3.2)"; String source "Atmosphere ATBD section 3.3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/pce_mframe_cnt { String HDF5_OBJ_FULLPATH "/profile_2/pce_mframe_cnt"; String units "counts"; String contentType "referenceInformation"; String long_name "PCE Major frame counter"; String description "Major Frame Counter - The major frame counter is read from the DFC and starts counting at DFC POR. The counter is used to identify individual major frames across diag and science packets. This counter can go for about 2.7 years before rolling over. It is in the first time tag science packet. Used as part of the photon ID"; String source "ATL02"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sc_alt { String HDF5_OBJ_FULLPATH "/profile_2/sc_alt"; String units "meters"; String contentType "physicalMeasurement"; String long_name "Altitude"; String description "Height of the spacecraft above the WGS84 ellipsoid."; String source "ATL03g ATBD, Section 3.4"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_h_sdev_low { String HDF5_OBJ_FULLPATH "/profile_2/sig_h_sdev_low"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signal Heights -Low"; String description "SDev of the heights of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_h_mean_low { String HDF5_OBJ_FULLPATH "/profile_2/sig_h_mean_low"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "Mean of Signal Heights - Low"; String description "Mean height of low-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/sig_h_sdev_med { String HDF5_OBJ_FULLPATH "/profile_2/sig_h_sdev_med"; Float32 _FillValue 3.402823466e+38; String units "meters"; String contentType "referenceInformation"; String long_name "SDev of Signa Heights -Med"; String description "SDev of the heights of medium-confidence signal photons"; String source "ATL03 ATBD, Section 5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/nrb_bot_bin { String HDF5_OBJ_FULLPATH "/profile_2/nrb_bot_bin"; Int32 _FillValue 2147483647; String units "1"; String contentType "modelResult"; String long_name "NRB Profile bottom valid bin"; String description "The ending (bottom) bin number within the 20 to -1 km vertically aligned profile where data are valid. Bin number starts at 1."; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /profile_2/surface_sig { String HDF5_OBJ_FULLPATH "/profile_2/surface_sig"; String units "counts"; String contentType "modelResult"; String long_name "Surface signal count"; String description "Number of photons in the detected surface bin."; String source "Atmosphere ATBD section 3.3.5"; String coordinates "delta_time, latitude, longitude"; } /profile_2/nrb_top_bin { String HDF5_OBJ_FULLPATH "/profile_2/nrb_top_bin"; Int32 _FillValue 2147483647; String units "counts"; String contentType "modelResult"; String long_name "NRB Profile top valid bin"; String description "The starting (top) bin number within the 20 to -1 km vertically aligned profile where data are valid. Bin number starts at 1."; String source "Atmosphere ATBD section 2.3"; String coordinates "delta_time, latitude, longitude"; } /ancillary_data/ { String HDF5_OBJ_FULLPATH "/ancillary_data/"; String Description "Contains information ancillary to the data product. This may include product characteristics, instrument characteristics and/or processing constants."; String data_rate "Data within this group pertain to the granule in its entirety."; } /ancillary_data/release { String HDF5_OBJ_FULLPATH "/ancillary_data/release"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Release Number"; String description "Release number of the granule. The release number is incremented when the software or ancillary data used to create the granule has been changed."; String source "Operations"; } /ancillary_data/end_geoseg { String HDF5_OBJ_FULLPATH "/ancillary_data/end_geoseg"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ending Geolocation Segment"; String description "The ending geolocation segment number associated with the data contained within this granule. ICESat granule geographic regions are further refined by geolocation segments. During the geolocation process, a geolocation segment is created approximately every 20m from the start of the orbit to the end. The geolocation segments help align the ATLAS strong a weak beams and provide a common segment length for the L2 and higher products. The geolocation segment indices differ slightly from orbit-to-orbit because of the irregular shape of the Earth. The geolocation segment indices on ATL01 and ATL02 are only approximate because beams have not been aligned at the time of their creation."; String source "Derived"; } /ancillary_data/version { String HDF5_OBJ_FULLPATH "/ancillary_data/version"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Version"; String description "Version number of this granule within the release. It is a sequential number corresponding to the number of times the granule has been reprocessed for the current release."; String source "Operations"; } /ancillary_data/end_region { String HDF5_OBJ_FULLPATH "/ancillary_data/end_region"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ending Region"; String description "The ending product-specific region number associated with the data contained within this granule. ICESat-2 data products are separated by geographic regions. The data contained within a specific region are the same for ATL01 and ATL02. ATL03 regions differ slightly because of different geolocation segment locations caused by the irregular shape of the Earth. The region indices for other products are completely independent."; String source "Derived"; } /ancillary_data/atmosphere/ { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/"; String Description "Contains general ancillary parameters."; String data_rate "Data within this group pertain to the granule in its entirety."; } /ancillary_data/atmosphere/cal_atm_trans { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_atm_trans"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Cal Atm Trans"; String description "Particulate transmission from top of atmosphere to the calibration height (13 km)"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/back_f2 { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/back_f2"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Background Fact method2"; String description "Scaling factor in Method 2 background computation"; String source "Atmosphere ATBD section 3.3.4"; } /ancillary_data/atmosphere/cal_cloud_thres { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_cloud_thres"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Cal Cloud Threshold"; String description "Threshold for excluding NRB data in calibration zone."; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/va_top_ht { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/va_top_ht"; String units "meters"; String contentType "auxiliaryInformation"; String long_name "Top height of vertically aligned profile"; String description "Top height of vertically aligned profile"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/alpha { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/alpha"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Scaling factor (a)"; String description "Scaling factor (a) for computation of the magnitude of molecular folding."; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/cal_integ_time { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_integ_time"; String units "seconds"; String contentType "auxiliaryInformation"; String long_name "Cal Integ Time"; String description "Calibration integration time"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/ozone_const { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/ozone_const"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ozone column density constant"; String description "Ozone column density constant"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/bin_span { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/bin_span"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Number of bins to search for max"; String description "Number of bins to search for max"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/num_va_bins { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/num_va_bins"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Number of vertically aligned bins"; String description "Number of vertically aligned bins"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/atlas_atm_shot_sum_50hz { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atlas_atm_shot_sum_50hz"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Number of shots at 50hz"; String description "Number of shots summed to compute an ATM histogram at 50 hz (diagnostic)"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/atlas_n_atm_hist_bins { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atlas_n_atm_hist_bins"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Number of histogram bins"; String description "Number of ATM histogram bins"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/gas_const_r { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/gas_const_r"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ideal gas constant R"; String description "Ideal gas constant (R)"; String source "Globals"; } /ancillary_data/atmosphere/deg2rad { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/deg2rad"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Degree to radians conversion"; String description "Degrees to radians conversion factor"; String source "Globals"; } /ancillary_data/atmosphere/atlas_atm_hist_binsize { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atlas_atm_hist_binsize"; String units "meters"; String contentType "auxiliaryInformation"; String description "Nominal size of each ATM histogram bin, in meters"; String source "Atmosphere ATBD"; String long_name "Histogram bin size (m)"; } /ancillary_data/atmosphere/backg_n_seg { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/backg_n_seg"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Number of background segments in method 1"; String description "Number of background segments in method 1"; String source "Atmosphere ATBD section 3.3.4"; } /ancillary_data/atmosphere/king_fact { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/king_fact"; String units "1"; String contentType "auxiliaryInformation"; String long_name "KING factor"; String description "King factor for molecular transmission."; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/atlas_atm_hist_binsize_s { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atlas_atm_hist_binsize_s"; String units "meters"; String contentType "auxiliaryInformation"; String description "Nominal size of each ATM histogram bin, in seconds"; String source "Atmosphere ATBD"; String long_name "Histogram bin size (s)"; } /ancillary_data/atmosphere/cal_top_h { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_top_h"; String units "meters"; String contentType "auxiliaryInformation"; String long_name "Top height of Cal zone"; String description "Top height of the calibration zone"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/cal_default { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_default"; String units "Photons*m^3 *sr / J"; String contentType "auxiliaryInformation"; String long_name "Default CAL Constant"; String description "Default atmosphere calibration constant. Used by default when no calibration data have been computed for an ATL04 granule."; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/back_f1 { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/back_f1"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Background Fact method1"; String description "Scaling factor in Method 1 background computation"; String source "Atmosphere ATBD section 3.3.4"; } /ancillary_data/atmosphere/grd_thres { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/grd_thres"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Ground Threshold"; String description "Threshold for Ground detection (photons/bin)"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/atm_tep_width { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atm_tep_width"; String units "sq meters"; String contentType "auxiliaryInformation"; String long_name "TEP Window Width"; String description "The width of the TEP removal window."; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/dtime_select { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/dtime_select"; String units "1"; String contentType "auxiliaryInformation"; String description "Deadtime factor used."; String source "Control"; String flag_meanings "dtime_fact1 dtime_fact2"; Int32 flag_values 1, 2; Int32 valid_min 1; Int32 valid_max 2; String long_name "dead time factor used"; } /ancillary_data/atmosphere/boltzmann_const { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/boltzmann_const"; String units "erg/K"; String contentType "auxiliaryInformation"; String long_name "Boltzmann Constant"; String description "Boltzmann constant"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/atm_laser_wavelength_nm { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atm_laser_wavelength_nm"; String units "nm"; String contentType "auxiliaryInformation"; String long_name "Laser Wavelength (nm)"; String description "ATLAS Laser wavelength, in nanometers"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/ht_min { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/ht_min"; String units "meters"; String contentType "auxiliaryInformation"; String long_name "Minimum height to use in ATM profile"; String description "Minimum height to use in ATM profile"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/atlas_n_pce { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atlas_n_pce"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Number of ATLAS PCEs"; String description "Number of ATLAS PCE boards"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/num_molec_bins { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/num_molec_bins"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "Number of bins in molecular profile"; String description "Number of bins in molecular profile"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/molec_top_ht { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/molec_top_ht"; String units "meters"; String contentType "auxiliaryInformation"; String long_name "Top height of molecular profile"; String description "Top height of molecular profile."; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/aer_scat_rat { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/aer_scat_rat"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Aerosol Scattering Ratio"; String description "Aerosol Scattering Ratio in the calibration zone (11"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/atm_processing_interval { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atm_processing_interval"; String units "seconds"; String contentType "auxiliaryInformation"; String long_name "Seconds of ATM data processed in one chunk."; String description "The number of seconds of ATM data processed in one chunk."; String source "Control"; } /ancillary_data/atmosphere/atm_tep_start { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atm_tep_start"; String units "ns"; String contentType "auxiliaryInformation"; String long_name "TEP Window Start"; String description "The start time of the TEP removal window."; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/receiver_optical_throughput { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/receiver_optical_throughput"; String units "1"; String contentType "auxiliaryInformation"; String description "Nominal Receiver Optics Throughput"; String source "Atmosphere ATBD"; String long_name "Receiver Optics Throughput"; } /ancillary_data/atmosphere/atlas_atm_shot_sum_25hz { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atlas_atm_shot_sum_25hz"; String units "counts"; String contentType "auxiliaryInformation"; String description "Number of shots summed to compute an ATM histogram at 25 hz (nominal)"; String source "Atmosphere ATBD"; String long_name "Number of shots at 25hz"; } /ancillary_data/atmosphere/telescope_area { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/telescope_area"; String units "sq meters"; String contentType "auxiliaryInformation"; String long_name "Telescope Effective Area"; String description "Effective collection area of telescope (At)"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/chappius_coef { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/chappius_coef"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Chappius Coefficient"; String description "Chappius ozone absorption coefficient"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/grd_thres_atl03 { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/grd_thres_atl03"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ground Threshold using ATL03 signal"; String description "Threshold for Ground detection (photons/bin) when using ATL03-classified signal"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/cal_scat_ratio { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_scat_ratio"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Cal Scat Ratio"; String description "Calibration Zone (13 to 11 km) aerosol scattering ratio"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/planck_const { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/planck_const"; String units "Js"; String contentType "auxiliaryInformation"; String long_name "Planck constant (h)"; String description "Planck constant (h)"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/detector_efficiency { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/detector_efficiency"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Detector Quantum Efficiency"; String description "Detector quantum efficiency (Qe)"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/atm_pulse_ns { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atm_pulse_ns"; String units "sq meters"; String contentType "auxiliaryInformation"; String long_name "Pulse Time"; String description "The time between ATLAS pulses."; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/speed_of_light { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/speed_of_light"; String units "meters/second"; String contentType "auxiliaryInformation"; String long_name "Speed of light (c)"; String description "Speed of light (c)"; String source "Globals"; } /ancillary_data/atmosphere/backg_select { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/backg_select"; String units "1"; String contentType "auxiliaryInformation"; String long_name "background method used"; String description "The background method used in calculation of NRB"; String source "Atmosphere ATBD section 3.3.4"; } /ancillary_data/atmosphere/dead_time_sfac { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/dead_time_sfac"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Dead Time Signal Factor"; String description "Dead time signal factor"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/seg_pct_thres { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/seg_pct_thres"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Segment percent threshold"; String description "Segment percent threshold"; String source "Atmosphere ATBD"; } /ancillary_data/atmosphere/cal_lat_bound { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_lat_bound"; String units "degrees"; String contentType "auxiliaryInformation"; String long_name "Cal Latitude Bound"; String description "The latitude boundary for calibration calculation"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/cal_bot_h { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_bot_h"; String units "meters"; String contentType "auxiliaryInformation"; String long_name "Bottom height of Cal zone"; String description "Bottom height of the calibration zone"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atmosphere/pi { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/pi"; String units "counts"; String contentType "auxiliaryInformation"; String long_name "PI"; String description "PI"; String source "Globals"; } /ancillary_data/atmosphere/atm_laser_wavelength_m { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/atm_laser_wavelength_m"; String units "meters"; String contentType "auxiliaryInformation"; String description "ATLAS Laser wavelength, in meters"; String source "Atmosphere ATBD"; String long_name "Laser Wavelength (m)"; } /ancillary_data/atmosphere/cal_solar_angle_limit { String HDF5_OBJ_FULLPATH "/ancillary_data/atmosphere/cal_solar_angle_limit"; String units "degrees"; String contentType "auxiliaryInformation"; String long_name "Cal Solar Angle Limit"; String description "Minimum solar zenith angle for calibration calculation"; String source "Atmosphere ATBD section 2"; } /ancillary_data/atlas_sdp_gps_epoch { String HDF5_OBJ_FULLPATH "/ancillary_data/atlas_sdp_gps_epoch"; String units "seconds since 1980-01-06T00:00:00.000000Z"; String contentType "auxiliaryInformation"; String long_name "ATLAS Epoch Offset"; String description "Number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS Standard Data Product (SDP) epoch (2018-01-01:T00.00.00.000000 UTC). Add this value to delta time parameters to compute full gps_seconds (relative to the GPS epoch) for each data point."; String source "Operations"; } /ancillary_data/end_rgt { String HDF5_OBJ_FULLPATH "/ancillary_data/end_rgt"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ending Reference Groundtrack"; String description "The ending reference groundtrack (RGT) number associated with the data contained within this granule. There are 1387 reference groundtrack in the ICESat-2 repeat orbit. The reference groundtrack increments each time the spacecraft completes a full orbit of the Earth and resets to 1 each time the spacecraft completes a full cycle."; String source "Derived"; Int32 valid_min 1; Int32 valid_max 1387; } /ancillary_data/end_orbit { String HDF5_OBJ_FULLPATH "/ancillary_data/end_orbit"; String units "1"; String contentType "auxiliaryInformation"; String description "The ending orbit number associated with the data contained within this granule. The orbit number increments each time the spacecraft completes a full orbit of the Earth."; String source "Derived"; String long_name "Ending Orbit Number"; } /ancillary_data/start_cycle { String HDF5_OBJ_FULLPATH "/ancillary_data/start_cycle"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Starting Cycle"; String description "The starting cycle number associated with the data contained within this granule. The cycle number is the counter of the number of 91-day repeat cycles completed by the mission."; String source "Derived"; Int32 valid_min 0; Int32 valid_max 99; } /ancillary_data/data_end_utc { String HDF5_OBJ_FULLPATH "/ancillary_data/data_end_utc"; String units "1"; String contentType "auxiliaryInformation"; String long_name "End UTC Time of Granule (CCSDS-A, Actual)"; String description "UTC (in CCSDS-A format) of the last data point within the granule."; String source "Derived"; } /ancillary_data/control { String HDF5_OBJ_FULLPATH "/ancillary_data/control"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Control File"; String description "PGE-specific control file used to generate this granule. To re-use, replace breaks (BR) with linefeeds."; String source "Operations"; } /ancillary_data/start_gpssow { String HDF5_OBJ_FULLPATH "/ancillary_data/start_gpssow"; String units "seconds"; String contentType "auxiliaryInformation"; String long_name "Start GPS SOW of Granule (Actual)"; String description "GPS seconds-of-week of the first data point in the granule."; String source "Derived"; } /ancillary_data/granule_end_utc { String HDF5_OBJ_FULLPATH "/ancillary_data/granule_end_utc"; String units "1"; String contentType "auxiliaryInformation"; String long_name "End UTC Time of Granule (CCSDS-A, Requested)"; String description "Requested end time (in UTC CCSDS-A) of this granule."; String source "Derived"; } /ancillary_data/end_cycle { String HDF5_OBJ_FULLPATH "/ancillary_data/end_cycle"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Ending Cycle"; String description "The ending cycle number associated with the data contained within this granule. The cycle number is the counter of the number of 91-day repeat cycles completed by the mission."; String source "Derived"; Int32 valid_min 0; Int32 valid_max 99; } /ancillary_data/granule_start_utc { String HDF5_OBJ_FULLPATH "/ancillary_data/granule_start_utc"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Start UTC Time of Granule (CCSDS-A, Requested)"; String description "Requested start time (in UTC CCSDS-A) of this granule."; String source "Derived"; } /ancillary_data/start_geoseg { String HDF5_OBJ_FULLPATH "/ancillary_data/start_geoseg"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Starting Geolocation Segment"; String description "The starting geolocation segment number associated with the data contained within this granule. ICESat granule geographic regions are further refined by geolocation segments. During the geolocation process, a geolocation segment is created approximately every 20m from the start of the orbit to the end. The geolocation segments help align the ATLAS strong a weak beams and provide a common segment length for the L2 and higher products. The geolocation segment indices differ slightly from orbit-to-orbit because of the irregular shape of the Earth. The geolocation segment indices on ATL01 and ATL02 are only approximate because beams have not been aligned at the time of their creation."; String source "Derived"; } /ancillary_data/start_orbit { String HDF5_OBJ_FULLPATH "/ancillary_data/start_orbit"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Starting Orbit Number"; String description "The starting orbit number associated with the data contained within this granule. The orbit number increments each time the spacecraft completes a full orbit of the Earth."; String source "Derived"; } /ancillary_data/data_start_utc { String HDF5_OBJ_FULLPATH "/ancillary_data/data_start_utc"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Start UTC Time of Granule (CCSDS-A, Actual)"; String description "UTC (in CCSDS-A format) of the first data point within the granule."; String source "Derived"; } /ancillary_data/end_gpsweek { String HDF5_OBJ_FULLPATH "/ancillary_data/end_gpsweek"; String units "weeks from 1980-01-06"; String contentType "auxiliaryInformation"; String long_name "Ending GPSWeek of Granule (Actual)"; String description "GPS week number of the last data point in the granule."; String source "Derived"; } /ancillary_data/start_rgt { String HDF5_OBJ_FULLPATH "/ancillary_data/start_rgt"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Starting Reference Groundtrack"; String description "The starting reference groundtrack (RGT) number associated with the data contained within this granule. There are 1387 reference groundtrack in the ICESat-2 repeat orbit. The reference groundtrack increments each time the spacecraft completes a full orbit of the Earth and resets to 1 each time the spacecraft completes a full cycle."; String source "Derived"; Int32 valid_min 1; Int32 valid_max 1387; } /ancillary_data/end_gpssow { String HDF5_OBJ_FULLPATH "/ancillary_data/end_gpssow"; String units "seconds"; String contentType "auxiliaryInformation"; String long_name "Ending GPS SOW of Granule (Actual)"; String description "GPS seconds-of-week of the last data point in the granule."; String source "Derived"; } /ancillary_data/qa_at_interval { String HDF5_OBJ_FULLPATH "/ancillary_data/qa_at_interval"; String units "1"; String contentType "auxiliaryInformation"; String long_name "QA Along-Track Interval"; String description "Statistics time interval for along-track QA data."; String source "control"; } /ancillary_data/start_region { String HDF5_OBJ_FULLPATH "/ancillary_data/start_region"; String units "1"; String contentType "auxiliaryInformation"; String long_name "Starting Region"; String description "The starting product-specific region number associated with the data contained within this granule. ICESat-2 data products are separated by geographic regions. The data contained within a specific region are the same for ATL01 and ATL02. ATL03 regions differ slightly because of different geolocation segment locations caused by the irregular shape of the Earth. The region indices for other products are completely independent."; String source "Derived"; } /ancillary_data/start_gpsweek { String HDF5_OBJ_FULLPATH "/ancillary_data/start_gpsweek"; String units "weeks from 1980-01-06"; String contentType "auxiliaryInformation"; String long_name "Start GPSWeek of Granule (Actual)"; String description "GPS week number of the first data point in the granule."; String source "Derived"; } /ds_va_bin_h { String HDF5_OBJ_FULLPATH "/ds_va_bin_h"; String units "meters"; String contentType "auxiliaryInformation"; String long_name "VA Bin Height Dimension Scale"; String description "Dimension scale containing the heights of the vertically-aligned bins."; String source "Atmosphere ATBD"; Float32 valid_min 1.; Float32 valid_max 700.; String CLASS "DIMENSION_SCALE"; String NAME "/ds_va_bin_h"; } }