OPeNDAP Data Access Form for 19960106043137-NCEI-L3C_GHRSST-SSTskin-AVHRR_Pathfinder-PFV5.3_NOAA14_G_1996006_night-v02.0-fv01.0.nc

Welcome to the

OPeNDAP DAP2 Data Access Form

dataset: 19960106043137-NCEI-L3C_GHRSST-SSTskin-AVHRR_Pathfinder-PFV5.3_NOAA14_G_1996006_night-v02.0-fv01.0.nc

Actions
Data URL

Global Attributes	NC_GLOBAL Conventions: CF-1.6, ACDD-1.3 title: AVHRR Pathfinder Version 5.3 L3-Collated (L3C) sea surface temperature summary: This netCDF-4 file contains sea surface temperature (SST) data produced as part of the AVHRR Pathfinder SST Project. These data were created using Version 5.3 of the Pathfinder algorithm and the file is nearly but not completely compliant with the GHRSST Data Specifications V2.0 (GDS2). The sses_bias and sses_standard_deviation variables are empty. Full compliance with GDS2 specifications will be achieved in the future Pathfinder Version 6. These data were created by the NOAA National Centers for Environmental Information (NCEI). references: http://pathfinder.nodc.noaa.gov and Casey, K.S., T.B. Brandon, P. Cornillon, and R. Evans: The Past, Present and Future of the AVHRR Pathfinder SST Program, in Oceanography from Space: Revisited, eds. V. Barale, J.F.R. Gower, and L. Alberotanza, Springer, 2010. DOI: 10.1007/978-90-481-8681-5_16. institution: NCEI history: smigen_both ifile=1996006.b4kd1-pf53ap-n14-sst.hdf ofile=1996006.i4kd1-pf53ap-n14-sst.hdf prod=sst datamin=-3.0 datamax=40.0 precision=I projection=RECT resolution=4km gap_fill=2 ; /srv/disk1t/PFV5.3CONV/bin/Converter/hdf2nc_PFV53_L3C.x -v /srv/disk1t/PFV5.3CONV/Data_PFV53/PFV53_HDF_L3C/1996/1996006.i4kd1-pf53ap-n14-sst.hdf comment: SST from AVHRR Pathfinder license: These data are available for use without restriction. id: AVHRR_Pathfinder-NCEI-L3C-v5.3 naming_authority: org.ghrsst product_version: PFV5.3 uuid: 71002F4D-B0B2-4CC7-8706-BA1B4F5C1947 gds_version_id: 2.0 netcdf_version_id: 4.1.2 date_created: 20160513T015604Z date_modified: 20160513T015604Z date_issued: 20160301T000000Z date_metadata_modified: 20160125T000000Z file_quality_level: 3 spatial_resolution: 0.0416667 degree geospatial_lat_units: degrees north geospatial_lat_resolution: 0.0416667014 geospatial_lon_units: degrees east geospatial_lon_resolution: 0.0416667014 geospatial_bounds: -180.0000 -90.0000, 180.0000 90.0000 geospatial_bounds_crs: EPSG:4326 geospatial_lon_min: -180.000000 geospatial_lon_max: 180.000000 geospatial_lat_min: -90.0000000 geospatial_lat_max: 90.0000000 northernmost_latitude: 90.0000000 southernmost_latitude: -90.0000000 easternmost_longitude: 180.000000 westernmost_longitude: -180.000000 principal_year_day_for_collated_orbits: 1996006 time_coverage_duration: P1D time_coverage_resolution: P1D start_time: 19960105T090056Z time_coverage_start: 19960105T090056Z stop_time: 19960107T000219Z time_coverage_end: 19960107T000219Z source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 instrument: AVHRR-2 sensor: AVHRR-2 sea_name: World-Wide Distribution day_or_night: Night orbit_node: Descending keywords: Oceans > Ocean Temperature > Sea Surface Temperature acknowledgement: Please acknowledge the use of these data with the following statement: These data were provided by GHRSST and the NOAA National Centers for Environmental Information (NCEI). This project was supported in part by a grant from the NOAA Climate Data Record (CDR) Program for satellites. creator_name: Kenneth S. Casey creator_email: Kenneth.Casey@noaa.gov creator_url: http://pathfinder.nodc.noaa.gov creator_type: person creator_institution: US DOC; NOAA; National Environmental Satellite Data and Information Service; National Centers for Environmental Information contributor_name: Robert Evans contributor_role: Principal Investigator project: Group for High Resolution Sea Surface Temperature publisher_name: GHRSST Project Office publisher_email: ghrsst-po@nceo.ac.uk publisher_url: http://www.ghrsst.org publisher_type: group processing_level: L3C cdm_data_type: Grid ncei_template_version: NCEI_NetCDF_Grid_Template_v2.0 cdr_variable: sea_surface_temperature keywords_vocabulary: NASA/Global Change Master Directory (GCMD) Science Keywords v8.4 standard_name_vocabulary: Climate and Forecast (CF) Standard Name Table (Version 29, 08 July 2015) platform_vocabulary: NASA Global Change Master Directory (GCMD) Science Keywords v8.4 instrument_vocabulary: NASA Global Change Master Directory (GCMD) Science Keywords v8.4 metadata_link: http://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:AVHRR_Pathfinder-NCEI-L3C-v5.3 program: NOAA Climate Data Record (CDR) Program for satellites cdr_program: NOAA Climate Data Record Program for satellites cdr_id: gov.noaa.ncdc:C00983 DODS_EXTRA Unlimited_Dimension: time

Variables	time[ time= 0 ..0] (Type is Int32) attributes standard_name: time long_name: reference time of SST file units: seconds since 1981-01-01 00:00:00 axis: T comment: This is the reference time of the SST file. Add sst_dtime to this value to get pixel-by-pixel times. calendar: gregorian time_bounds[ time= 0 ..0] [ nv= 0 ..1] (Type is Int32) attributes long_name: time bounds units: seconds since 1981-01-01 00:00:00 comment: time bounds for each time value calendar: gregorian lat[ lat= 0 ..4319] (Type is Float32) attributes standard_name: latitude long_name: latitude units: degrees_north reference_datum: Geographical coordinates, WGS84 datum axis: Y valid_min: -90.00000000000000 valid_max: 90.00000000000000 lat_bounds[ lat= 0 ..4319] [ nv= 0 ..1] (Type is Float32) attributes long_name: latitude bounds units: degrees_north comment: latitude values at the north and south bounds of each grid point lon[ lon= 0 ..8639] (Type is Float32) attributes standard_name: longitude long_name: longitude units: degrees_east reference_datum: Geographical coordinates, WGS84 datum axis: X valid_min: -180.0000000000000 valid_max: 180.0000000000000 lon_bounds[ lon= 0 ..8639] [ nv= 0 ..1] (Type is Float32) attributes long_name: longitude bounds units: degrees_east comment: longitude values at the west and east bounds of each grid point crs(Type is Int32) attributes long_name: coordinate reference system grid_mapping_name: latitude_longitude semi_major_axis: 6378137.000000000 inverse_flattening: 298.2572235630000 epsg_code: EPSG:4326 comment: This is a container variable that describes the grid_mapping used by the data in this file. This variable does not contain any data; only information about the geographic coordinate system. sea_surface_temperature[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes standard_name: sea_surface_skin_temperature long_name: NOAA Climate Data Record of sea surface skin temperature coverage_content_type: physicalMeasurement grid_mapping: crs units: kelvin add_offset: 273.1500000000000 scale_factor: 0.01000000000000000 valid_min: -180 valid_max: 4500 _FillValue: -32768 ancillary_variables: quality_level pathfinder_quality_level l2p_flags source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: Skin temperature of the ocean sst_dtime[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int32 values) attributes long_name: time difference from reference time coverage_content_type: auxiliaryInformation grid_mapping: crs units: seconds add_offset: 0 scale_factor: 1 valid_min: -2147483647 valid_max: 2147483647 _FillValue: -2147483648 source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: Time plus sst_dtime gives seconds after 1981-01-01 00:00:00. Note: in PFV5.3 this sst_dtime is empty. PFV6 will contain the correct sst_dtime values. sses_bias[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: SSES bias estimate coverage_content_type: auxiliaryInformation grid_mapping: crs units: kelvin add_offset: 0.000000000000000 scale_factor: 0.02000000000000000 valid_min: -127 valid_max: 127 _FillValue: -128 source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: Bias estimate derived using the techniques described at https://www.ghrsst.org/ghrsst/tags-and-wgs/stval-wg/sses-description-of-schemes/. Note: in PFV5.3 this sses_bias is empty. PFV6 will contain the correct sses_bias values. sses_standard_deviation[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: SSES standard deviation coverage_content_type: auxiliaryInformation grid_mapping: crs units: kelvin add_offset: 2.540000000000000 scale_factor: 0.02000000000000000 valid_min: -127 valid_max: 127 _FillValue: -128 source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: Standard deviation estimate derived using the techniques described at https://www.ghrsst.org/ghrsst/tags-and-wgs/stval-wg/sses-description-of-schemes/. Note: in PFV5.3 this sses_standard_deviation is empty. PFV6 will contain the correct sses_standard_deviation values. dt_analysis[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: deviation from last SST analysis coverage_content_type: auxiliaryInformation grid_mapping: crs units: kelvin add_offset: 0.000000000000000 scale_factor: 0.1000000000000000 valid_min: -127 valid_max: 127 _FillValue: -128 source: NOAA Daily 25km Global Optimally Interpolated Sea Surface Temperature (OISST) platform: NOAA-14 reference: AVHRR_OI, with inland values populated from AVHRR_Pathfinder daily climatological SST. For more information on this reference field see http://accession.nodc.noaa.gov/0071180. comment: The difference between this SST and the previous day's SST. wind_speed[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes standard_name: wind_speed long_name: 10m wind speed coverage_content_type: auxiliaryInformation grid_mapping: crs units: m s-1 height: 10 m add_offset: 0.000000000000000 scale_factor: 1.000000000000000 valid_min: -127 valid_max: 127 _FillValue: -128 time_offset: 4.313700000000000 source: NCEP/DOE AMIP-II Reanalysis (Reanalysis-2): u_wind.10m.gauss.1996.nc, v_wind.10m.gauss.1996.nc comment: These wind speeds were created by NCEP-DOE Atmospheric Model Intercomparison Project (AMIP-II) reanalysis (R-2) and represent winds at 10 metres above the sea surface. sea_ice_fraction[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes standard_name: sea_ice_area_fraction long_name: sea ice fraction coverage_content_type: auxiliaryInformation grid_mapping: crs units: percent add_offset: 0.000000000000000 scale_factor: 0.01000000000000000 valid_min: -127 valid_max: 127 _FillValue: -128 time_offset: 8.000000000000000 source: NOAA/NESDIS/NCDC Daily optimum interpolation(OI) SST on 1/4-degree grid: 19960106-NCDC-L4LRblend-GLOB-v01-fv02_0-AVHRR_OI.nc.gz comment: Sea ice concentration data are taken from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSISAF) Global Daily Sea Ice Concentration Reprocessing Data Set (http://accession.nodc.noaa.gov/0068294) when these data are available. The data are reprojected and interpolated from their original polar stereographic projection at 10km spatial resolution to the 4km Pathfinder Version 5.3 grid. When the OSISAF data are not available for both hemispheres on a given day, the sea ice concentration data are taken from the sea_ice_fraction variable found in the L4 GHRSST DailyOI SST product from NOAA/NCDC, and are interpolated from the 25km DailyOI grid to the 4km Pathfinder Version 5.3 grid. reference: Reynolds, et al.(2006) Daily High-resolution Blended Analyses. Available at http://doi.org/10.7289/V5SQ8XB5 aerosol_dynamic_indicator[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: aerosol dynamic indicator coverage_content_type: auxiliaryInformation grid_mapping: crs units: percent add_offset: 0.000000000000000 scale_factor: 1.000000000000000 valid_min: -127 valid_max: 127 _FillValue: -128 time_offset: 360.0000000000000 source: CLASS_AVHRRPF_AOT reference: http://www.class.ncdc.noaa.gov/saa/products/search?sub_id=0&datatype_family=AVHRRPF comment: Aerosol optical thickness (AOT) data are taken from the CLASS Pathfinder (from AVHRR) (AVHRRPF). The aerosol optical thickness/depth (AOT/AOD) measurements are extracted from PATMOS-A2 monthly mean and reprojected and interpolated from their original 1 degree x 1 degree resolution to the 4km Pathfinder Version 5.3 grid. quality_level[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: quality level of SST pixel coverage_content_type: qualityInformation grid_mapping: crs units: 1 add_offset: 0.000000000000000 scale_factor: 1.000000000000000 valid_min: 1 valid_max: 5 _FillValue: 0 flag_meanings: no_data bad_data worst_quality low_quality acceptable_quality best_quality flag_values: 0, 1, 2, 3, 4, 5 ancillary_variables: pathfinder_quality_level source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: These are the overall quality indicators and are used for all GHRSST SSTs. Note, the native Pathfinder processing system returns quality levels ranging from 0 to 7 (7 is best quality; -1 represents missing data) and has been converted to the extent possible into the six levels required by the GDS2 (ranging from 0 to 5, where 5 is best). Below is the conversion table: GDS2 required quality_level 5 = native Pathfinder quality level 7 == best_quality GDS2 required quality_level 4 = native Pathfinder quality level 4-6 == acceptable_quality GDS2 required quality_level 3 = native Pathfinder quality level 2-3 == low_quality GDS2 required quality_level 2 = native Pathfinder quality level 1 == worst_quality GDS2 required quality_level 1 = native Pathfinder quality level 0 = bad_data GDS2 required quality_level 0 = native Pathfinder quality level -1 = missing_data The original Pathfinder quality level is recorded in the optional variable pathfinder_quality_level. pathfinder_quality_level[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: Pathfinder SST quality flag coverage_content_type: qualityInformation grid_mapping: crs units: 1 add_offset: 0.000000000000000 scale_factor: 1.000000000000000 valid_min: 0 valid_max: 7 _FillValue: -1 flag_meanings: bad_data worst_quality low_quality low_quality acceptable_quality acceptable_quality acceptable_quality best_quality flag_values: 0, 1, 2, 3, 4, 5, 6, 7 source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: This variable contains the native Pathfinder processing system quality levels, ranging from 0 to 7, where 0 is worst and 7 is best. And value -1 represents missing data. l2p_flags[ time= 0 ..0] [ lat= 0 ..4319] [ lon= 0 ..8639] (Grid of Int16 values) attributes long_name: L2P flags coverage_content_type: auxiliaryInformation grid_mapping: crs units: 1 add_offset: 0.000000000000000 scale_factor: 1.000000000000000 valid_min: 0 valid_max: 256 flag_meanings: microwave land ice lake river reserved_for_future_use extreme_sst unused_currently unused_currently flag_masks: 1, 2, 4, 8, 16, 32, 64, 128, 256 source: AVHRR_GAC-CLASS-L1B-NOAA_14-v1 platform: NOAA-14 comment: Bit zero (0) is always set to zero to indicate infrared data. Bit one (1) is set to zero for any pixel over water (ocean, lakes and rivers). Land pixels were determined by rasterizing the Global Self-consistent Hierarchical High-resolution Shoreline (GSHHS) Database from the NOAA National Geophysical Data Center. Any 4 km Pathfinder pixel whose area is 50% or more covered by land has bit one (1) set to 1. Bit two (2) is set to 1 when the sea_ice_fraction is 0.15 or greater. Bits three (3) and four (4) indicate lake and river pixels, respectively, and were determined by rasterizing the US World Wildlife Fund's Global Lakes and Wetlands Database. Any 4 km Pathfinder pixel whose area is 50% or more covered by lake has bit three (3) set to 1. Any 4 km Pathfinder pixel whose area is 50% or more covered by river has bit four (4) set to 1. Bits six (6) indicates the daytime unrealistic SST values (>39.8\302\260C) that remain in pf_quality_level 4 to 7. Users are recommended to avoid these values.

debug

Hyrax development sponsored by NSF, NASA, and NOAA

dataset: 19960106043137-NCEI-L3C_GHRSST-SSTskin-AVHRR_Pathfinder-PFV5.3_NOAA14_G_1996006_night-v02.0-fv01.0.nc

OPeNDAP Hyrax (1.16.8-383) Documentation Questions? Contact Support

OPeNDAP Hyrax (1.16.8-383)
Documentation Questions? Contact Support