DAP4 Data Request Form ATL07-01_20181014000347_02350101_003_02.h5

dataset: ATL07-01_20181014000347_02350101_003_02.h5
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Data URL
Global Attributes
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    • Conventions: CF-1.6 (Type is 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) (Type is String)
    • contributor_role: Instrument Engineer, Investigator, Principle Investigator, Data Producer, Data Producer (Type is String)
    • date_type: UTC (Type is String)
    • description: The data set (ATL07) contains along-track heights for sea ice and open water leads (at varying length scales) relative to the WGS84 ellipsoid (ITRF2014 reference frame) after adjustment for geoidal and tidal variations, and inverted barometer effects. Heig (Type is String)
    • featureType: trajectory (Type is String)
    • geospatial_lat_units: degrees_north (Type is String)
    • geospatial_lon_units: degrees_east (Type is String)
    • granule_type: ATL07 (Type is String)
    • identifier_product_doi_authority: http://dx.doi.org (Type is String)
    • level: L3A (Type is 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. (Type is String)
    • naming_authority: http://dx.doi.org (Type is String)
    • short_name: ATL07 (Type is String)
    • spatial_coverage_type: Horizontal (Type is String)
    • standard_name_vocabulary: CF-1.6 (Type is String)
    • time_type: CCSDS UTC-A (Type is String)
    • title: SET_BY_META (Type is String)
    • date_created: 2020-05-29T14:35:54.000000Z (Type is String)
    • hdfversion: HDF5 1.10.3 (Type is String)
    • history: 2020-05-29T14:35:54.000000Z;2bed11f8-37e3-3547-bf60-9d7af1919f0d;Created by PGE atlas_l3a_si Version 4.3.2 (Type is String)
    • identifier_file_uuid: 2bed11f8-37e3-3547-bf60-9d7af1919f0d (Type is String)
    • identifier_product_format_version: 4.3 (Type is String)
    • time_coverage_duration: 5658. (Type is Float64)
    • time_coverage_end: 2018-10-14T01:38:05.000000Z (Type is String)
    • time_coverage_start: 2018-10-14T00:03:47.000000Z (Type is String)
    • geospatial_lat_min: 68.916474823665695 (Type is Float64)
    • geospatial_lon_min: 63.30432580191718 (Type is Float64)
    • geospatial_lat_max: 88.043374802950964 (Type is Float64)
    • geospatial_lon_max: -136.62047583959989 (Type is Float64)
    • publisher_name: NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center (Type is String)
    • publisher_email: nsidc@nsidc.org (Type is String)
    • publisher_url: http://nsidc.org/daac/ (Type is String)
    • identifier_product_type: ATL07 (Type is String)
    • identifier_product_doi: doi:10.5067/ATLAS/ATL07.003 (Type is String)
    • institution: National Aeronautics and Space Administration (NASA) (Type is String)
    • creator_name: GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System (Type is String)
    • summary: The purpose of ATL07 is to provide along-track sea ice heights and associated statistics. (Type is String)
    • keywords: EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR > LIDAR BACKSCATTER > NONE > NONE > NONE (Type is String)
    • keywords_vocabulary: NASA/GCMD Science Keywords (Type is 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. (Type is String)
    • processing_level: 2A (Type is String)
    • references: http://nsidc.org/data/icesat2/data.html (Type is String)
    • project: ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 (Type is String)
    • instrument: ATLAS > Advanced Topographic Laser Altimeter System (Type is String)
    • platform: ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 (Type is String)
    • source: Spacecraft (Type is String)
Global Dimensions
None
Variables
gt1r(Type is Group)
  • attributes
    • Description: This ground contains parameters and subgroups related a specific groundtrack. (Type is String)
    • data_rate: Each subgroup identifies its particular data rate. (Type is String)
    • atlas_pce: pce3 (Type is String)
    • atlas_beam_type: strong (Type is String)
    • groundtrack_id: gt1r (Type is String)
    • atmosphere_profile: profile_1 (Type is String)
    • atlas_spot_number: 5 (Type is String)
    • sc_orientation: Forward (Type is String)
  • sea_ice_segments(Type is Group)
    no attributes
    Dimensions: [ /gt1r/sea_ice_segments/delta_time = 0..280132 ]
    • height_segment_id[ /gt1r/sea_ice_segments/delta_time= 0..280132] (Type is Int32)
      • attributes
        • contentType: referenceInformation (Type is String)
        • coordinates: delta_time latitude longitude (Type is String)
        • description: Identifier of each height segment (Type is String)
        • long_name: Identifier of each height segment (Type is String)
        • source: ATBD, section 5.2 (Type is String)
        • units: 1 (Type is String)
    • delta_time[ /gt1r/sea_ice_segments/delta_time= 0..280132] (Type is Float64)
      • attributes
        • contentType: physicalMeasurement (Type is String)
        • coordinates: latitude longitude (Type is 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. (Type is String)
        • long_name: Elapsed GPS seconds (Type is String)
        • source: telemetry (Type is String)
        • standard_name: time (Type is String)
        • units: seconds since 2018-01-01 (Type is String)
gt2r(Type is Group)
  • attributes
    • Description: This ground contains parameters and subgroups related a specific groundtrack. (Type is String)
    • data_rate: Each subgroup identifies its particular data rate. (Type is String)
    • atlas_pce: pce2 (Type is String)
    • atlas_beam_type: strong (Type is String)
    • groundtrack_id: gt2r (Type is String)
    • atmosphere_profile: profile_2 (Type is String)
    • atlas_spot_number: 3 (Type is String)
    • sc_orientation: Forward (Type is String)
  • sea_ice_segments(Type is Group)
    no attributes
    Dimensions: [ /gt2r/sea_ice_segments/delta_time = 0..225002 ]
    • seg_dist_x[ /gt2r/sea_ice_segments/delta_time= 0..225002] (Type is Float64)
      • attributes
        • contentType: referenceInformation (Type is String)
        • coordinates: delta_time latitude longitude (Type is String)
        • description: Along-track distance from the equator crossing to the segment center. (Type is String)
        • long_name: Along track distance (Type is String)
        • source: Sea Ice ATBD (Type is String)
        • units: meters (Type is String)
    • delta_time[ /gt2r/sea_ice_segments/delta_time= 0..225002] (Type is Float64)
      • attributes
        • contentType: physicalMeasurement (Type is String)
        • coordinates: latitude longitude (Type is 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. (Type is String)
        • long_name: Elapsed GPS seconds (Type is String)
        • source: telemetry (Type is String)
        • standard_name: time (Type is String)
        • units: seconds since 2018-01-01 (Type is String)
gt3l(Type is Group)
  • attributes
    • Description: This ground contains parameters and subgroups related a specific groundtrack. (Type is String)
    • data_rate: Each subgroup identifies its particular data rate. (Type is String)
    • atlas_pce: pce1 (Type is String)
    • atlas_beam_type: weak (Type is String)
    • groundtrack_id: gt3l (Type is String)
    • atmosphere_profile: profile_3 (Type is String)
    • atlas_spot_number: 2 (Type is String)
    • sc_orientation: Forward (Type is String)
  • sea_ice_segments(Type is Group)
    no attributes
    Dimensions: [ /gt3l/sea_ice_segments/delta_time = 0..274700 ]
    • geophysical(Type is Group)
      no attributes
      • height_segment_t2m[ /gt3l/sea_ice_segments/delta_time= 0..274700] (Type is Float32)
        • attributes
          • _FillValue: 3.402823466e+38 (Type is Float32)
          • contentType: referenceInformation (Type is String)
          • coordinates: ../delta_time ../latitude ../longitude (Type is String)
          • description: Temperature at 2m above the displacement height (K) (Type is String)
          • long_name: temperature_at_2m (Type is String)
          • source: ATL09 (Type is String)
          • standard_name: temperature (Type is String)
          • units: K (Type is String)
      • height_segment_ocean[ /gt3l/sea_ice_segments/delta_time= 0..274700] (Type is Float32)
        • attributes
          • _FillValue: 3.402823466e+38 (Type is Float32)
          • contentType: referenceInformation (Type is String)
          • coordinates: ../delta_time ../latitude ../longitude (Type is String)
          • description: Ocean Tides including diurnal and semi-diurnal (harmonic analysis), and longer period tides (dynamic and self-consistent equilibrium) (Type is String)
          • long_name: Ocean Tide (Type is String)
          • source: Sea Ice ATBD (Type is String)
          • units: meters (Type is String)
      • delta_time[ /gt3l/sea_ice_segments/delta_time= 0..274700] (Type is Float64)
        • attributes
          • contentType: physicalMeasurement (Type is String)
          • coordinates: latitude longitude (Type is 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. (Type is String)
          • long_name: Elapsed GPS seconds (Type is String)
          • source: telemetry (Type is String)
          • standard_name: time (Type is String)
          • units: seconds since 2018-01-01 (Type is String)
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