| GDAL_AREA_OR_POINT: | Area |
| Conventions: | CF-1.6 |
| short_name: | ATL15 |
| level: | L3B |
| title: | SET_BY_META |
| description: | This data set (ATL15) contains seasonal, annual, and biennial gridded land ice elevation change. |
| contributor_name: | Benjamin Smith (besmith@uw.edu), Tyler Sutterley (tsutterl@uw.edu), Suzanne Dickinson (sdickins@uw.edu), Benjamin Jelley (benjamin.p.jelley@nasa.gov), Denis Felikson (denis.felikson@nasa.gov), Thomas A Neumann (thomas.neumann@nasa.gov), Helen Fricker (hafricker@ucsd.edu), Alex Gardner (alex.s.gardner@jpl.nasa.gov), Laurence Padman (padman@esr.org), Thorsten Markus (thorsten.markus@nasa.gov), Nathan Kurtz (nathan.t.kurtz@nasa.gov), Suneel Bhardwaj (suneel.bhardwaj@nasa.gov), David W Hancock III (david.w.hancock@nasa.gov), Jeffrey Lee (jeffrey.e.lee@nasa.gov) |
| contributor_role: | Investigator, Investigator, Algorithm Developer, Algorithm Developer, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Algorithm Developer |
| date_type: | UTC |
| geospatial_lat_max: | -60.881516331468902 |
| geospatial_lat_min: | -78.135893650825196 |
| geospatial_lat_units: | degrees_north |
| geospatial_lon_max: | 171.75897882317099 |
| geospatial_lon_min: | -176.14392791390799 |
| geospatial_lon_units: | degrees_east |
| granule_type: | ATL15 |
| identifier_product_doi_authority: | http://dx.doi.org |
| 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. |
| naming_authority: | http://dx.doi.org |
| reference_frame: | ITRF2014 |
| shortName: | ATL15_META |
| spatial_coverage_type: | Horizontal |
| standard_name_vocabulary: | CF-1.6 |
| time_type: | CCSDS UTC-A |
| vertical_datum: | WGS84 |
| date_created: | 2022-10-13T17:18:16.416024Z |
| fileName: | ATL15_AA_0314_01km_002_02.nc |
| history: | 2022-10-13T17:18:16.416024Z |
| identifier_product_format_version: | 2.0 |
| time_coverage_duration: | 94150869.626310587 |
| time_coverage_end: | 2022-03-23T03:19:26.843657Z |
| time_coverage_start: | 2019-03-29T10:18:17.217346Z |
| netcdfversion: | 4.8.1 |
| identifier_file_uuid: | cd7dc988-d5d0-4d42-8df8-ad73bfb2204f |
| publisher_name: | NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center |
| publisher_email: | nsidc@nsidc.org |
| publisher_url: | http://nsidc.org/daac/ |
| identifier_product_type: | ATL15 |
| identifier_product_doi: | doi:10.5067/ATLAS/ATL15.002 |
| institution: | National Aeronautics and Space Administration (NASA) |
| creator_name: | GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System |
| summary: | The purpose of ATL15 is to provide an IceSat-2 gridded satellite summary of height changes of land-based ice. |
| keywords: | EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION > NONE > NONE > NONE |
| keywords_vocabulary: | NASA/GCMD Science Keywords |
| 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. |
| processing_level: | 3B |
| references: | http://nsidc.org/data/icesat2/data.html |
| project: | ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 |
| instrument: | ATLAS > Advanced Topographic Laser Altimeter System |
| platform: | ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 |
| source: | Spacecraft |
| Unlimited_Dimension: | orbit_info_bounding_polygon_dim1 |
| orbit_info_bounding_polygon_lat1: | Array of 32 bit Reals [orbit_info_bounding_polygon_dim1 = 0..135] long_name: Polygon vertex latitude units: degrees North source: model contentType: modelResult description: Polygon extent vertex latitude origname: bounding_polygon_lat1 fullnamepath: /orbit_info/bounding_polygon_lat1 coordinates: orbit_info_bounding_polygon_dim1 |
| orbit_info_bounding_polygon_lon1: | Array of 32 bit Reals [orbit_info_bounding_polygon_dim1 = 0..135] long_name: Polygon vertex longitude units: degrees East source: model contentType: modelResult description: Polygon extent vertex longitude origname: bounding_polygon_lon1 fullnamepath: /orbit_info/bounding_polygon_lon1 coordinates: orbit_info_bounding_polygon_dim1 |
| tile_stats_sigma_tt: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters years^-2 dimensions: y, x datatype: float32 description: weighting values for the constraint equations on the second temporal derivatives of the surface height long_name: sigma_tt source: 4.1.2.1 origname: sigma_tt fullnamepath: /tile_stats/sigma_tt grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_RMS_d2z0dx2: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters^-1 dimensions: y, x datatype: float32 description: root mean square of the constraint equation residuals for the second spatial derivative of z0 long_name: RMS_d2z0dx2 source: 4.1.2.1 origname: RMS_d2z0dx2 fullnamepath: /tile_stats/RMS_d2z0dx2 grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_RMS_d2zdt2: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters years^2 dimensions: y, x datatype: float32 description: root mean square of the constraint equation residuals for the second temporal derivative of dz long_name: RMS_d2zdt2 source: 4.1.2.1 origname: RMS_d2zdt2 fullnamepath: /tile_stats/RMS_d2zdt2 grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_N_bias: | Array of 32 bit Integers [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 2147483647 units: counts dimensions: y, x datatype: int32 description: number of bias values solved for long_name: N_bias source: 4.1.2.1 origname: N_bias fullnamepath: /tile_stats/N_bias grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_RMS_data: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters dimensions: y, x datatype: float32 description: root mean of squared, scaled data misfits long_name: RMS_data source: 4.1.2.1 origname: RMS_data fullnamepath: /tile_stats/RMS_data grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_Polar_Stereographic: | 16 bit Integer standard_name: Polar_Stereographic grid_mapping_name: polar_stereographic straight_vertical_longitude_from_pole: 0.0000000000000000 latitude_of_projection_origin: -90.000000000000000 standard_parallel: -71.000000000000000 scale_factor_at_projection_origin: 1.0000000000000000 false_easting: 0.0000000000000000 false_northing: 0.0000000000000000 semi_major_axis: 6378.1369999999997 semi_minor_axis: 6356.7520000000004 inverse_flattening: 298.25722356300003 spatial_epsg: 3031 spatial_ref: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] crs_wkt: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] origname: Polar_Stereographic fullnamepath: /tile_stats/Polar_Stereographic |
| tile_stats_sigma_xxt: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters^-1 years^-1 dimensions: y, x datatype: float32 description: weighting values for the constraint equations on the second spatial derivatives of the height-change rate long_name: sigma_xxt source: 4.1.2.1 origname: sigma_xxt fullnamepath: /tile_stats/sigma_xxt grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_RMS_bias: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters dimensions: y, x datatype: float32 description: root mean of squared, scaled bias values long_name: RMS_bias source: 4.1.2.1 origname: RMS_bias fullnamepath: /tile_stats/RMS_bias grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_N_data: | Array of 32 bit Integers [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 2147483647 units: counts dimensions: y, x datatype: int32 description: number of data used in fit long_name: N_data source: 4.1.2.1 origname: N_data fullnamepath: /tile_stats/N_data grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_RMS_d2zdx2dt: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters^-1 years^-1 dimensions: y, x datatype: float32 description: root mean square of the constraint equation residuals for the second temporal derivative of dz/dt long_name: RMS_d2zdx2dt source: 4.1.2.1 origname: RMS_d2zdx2dt fullnamepath: /tile_stats/RMS_d2zdx2dt grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| tile_stats_sigma_xx0: | Array of 32 bit Reals [tile_stats_y = 0..110][tile_stats_x = 0..135] _FillValue: 3.402823466e+38 units: meters^-1 dimensions: y, x datatype: float32 description: weighting values for the constraint equations on the second spatial derivatives of the DEM long_name: sigma_xx0 source: 4.1.2.1 origname: sigma_xx0 fullnamepath: /tile_stats/sigma_xx0 grid_mapping: tile_stats_Polar_Stereographic coordinates: tile_stats_y tile_stats_x |
| dhdt_lag8_Polar_Stereographic: | 16 bit Integer standard_name: Polar_Stereographic grid_mapping_name: polar_stereographic straight_vertical_longitude_from_pole: 0.0000000000000000 latitude_of_projection_origin: -90.000000000000000 standard_parallel: -71.000000000000000 scale_factor_at_projection_origin: 1.0000000000000000 false_easting: 0.0000000000000000 false_northing: 0.0000000000000000 semi_major_axis: 6378.1369999999997 semi_minor_axis: 6356.7520000000004 inverse_flattening: 298.25722356300003 spatial_epsg: 3031 spatial_ref: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] crs_wkt: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] GeoTransform: -2670000.0000000000, 1000.0000000000000, 0.0000000000000000, 2270000.0000000000, 0.0000000000000000, -1000.0000000000000 origname: Polar_Stereographic fullnamepath: /dhdt_lag8/Polar_Stereographic |
| dhdt_lag8_ice_area: | Array of 32 bit Reals [dhdt_lag8_time = 0..6][dhdt_lag8_y = 0..4460][dhdt_lag8_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters^2 dimensions: time,y,x datatype: float32 description: Ice-covered area of each 1x1 km grid cell for biennial change in height, accounting for the area distortion in the polar-stereographic projections long_name: ice-covered area at 1 km, for biennial change in height source: ATBD section 3.4 origname: ice_area fullnamepath: /dhdt_lag8/ice_area grid_mapping: dhdt_lag8_Polar_Stereographic coordinates: dhdt_lag8_time dhdt_lag8_y dhdt_lag8_x |
| dhdt_lag8_dhdt: | Array of 32 bit Reals [dhdt_lag8_time = 0..6][dhdt_lag8_y = 0..4460][dhdt_lag8_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Biennial height-change rate long_name: biennial height-change rate at 1 km source: ATBD section 3.4 origname: dhdt fullnamepath: /dhdt_lag8/dhdt grid_mapping: dhdt_lag8_Polar_Stereographic coordinates: dhdt_lag8_time dhdt_lag8_y dhdt_lag8_x |
| dhdt_lag8_dhdt_sigma: | Array of 32 bit Reals [dhdt_lag8_time = 0..6][dhdt_lag8_y = 0..4460][dhdt_lag8_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Estimated error in biennial height-change rate long_name: biennial height-change rate uncertainty at 1 km source: ATBD section 3.4 origname: dhdt_sigma fullnamepath: /dhdt_lag8/dhdt_sigma grid_mapping: dhdt_lag8_Polar_Stereographic coordinates: dhdt_lag8_time dhdt_lag8_y dhdt_lag8_x |
| quality_assessment_qa_granule_fail_reason: | Array of 32 bit Integers [quality_assessment_phony_dim_1 = 0..0] source: Operations valid_min: 0 valid_max: 5 contentType: qualityInformation flag_meanings: no_failure PROCESS_ERROR INSUFFICIENT_OUTPUT failure_3 failure_4 OTHER_FAILURE flag_values: 0, 1, 2, 3, 4, 5 long_name: Granule Failure Reason units: 1 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. origname: qa_granule_fail_reason fullnamepath: /quality_assessment/qa_granule_fail_reason |
| quality_assessment_qa_granule_pass_fail: | Array of 32 bit Integers [quality_assessment_phony_dim_1 = 0..0] source: Operations valid_min: 0 valid_max: 1 contentType: qualityInformation flag_meanings: PASS FAIL flag_values: 0, 1 units: 1 long_name: Granule Pass Flag description: Flag indicating granule quality. 0=granule passes automatic QA. 1=granule fails automatic QA. origname: qa_granule_pass_fail fullnamepath: /quality_assessment/qa_granule_pass_fail |
| delta_h_misfit_rms: | Array of 32 bit Reals [delta_h_time = 0..14][delta_h_y = 0..4460][delta_h_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters dimensions: time,y,x datatype: float32 description: Misfit associated with each node in the 1-km height-change grid long_name: rms misfit source: ATBD section 5.2.4.4 origname: misfit_rms fullnamepath: /delta_h/misfit_rms grid_mapping: delta_h_Polar_Stereographic coordinates: delta_h_time delta_h_y delta_h_x |
| delta_h_delta_h_sigma: | Array of 32 bit Reals [delta_h_time = 0..14][delta_h_y = 0..4460][delta_h_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters dimensions: time,y,x datatype: float32 description: Estimated error in height change relative to the datum (Jan 1, 2020) surface long_name: height change uncertainty at 1 km source: ATBD section 3.4 origname: delta_h_sigma fullnamepath: /delta_h/delta_h_sigma grid_mapping: delta_h_Polar_Stereographic coordinates: delta_h_time delta_h_y delta_h_x |
| delta_h_misfit_scaled_rms: | Array of 32 bit Reals [delta_h_time = 0..14][delta_h_y = 0..4460][delta_h_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: counts dimensions: time,y,x datatype: float32 description: Scaled misfit associated with each node in the 1-km height-change grid long_name: scaled rms misfit source: ATBD section 5.2.4.4 origname: misfit_scaled_rms fullnamepath: /delta_h/misfit_scaled_rms grid_mapping: delta_h_Polar_Stereographic coordinates: delta_h_time delta_h_y delta_h_x |
| delta_h_Polar_Stereographic: | 16 bit Integer standard_name: Polar_Stereographic grid_mapping_name: polar_stereographic straight_vertical_longitude_from_pole: 0.0000000000000000 latitude_of_projection_origin: -90.000000000000000 standard_parallel: -71.000000000000000 scale_factor_at_projection_origin: 1.0000000000000000 false_easting: 0.0000000000000000 false_northing: 0.0000000000000000 semi_major_axis: 6378.1369999999997 semi_minor_axis: 6356.7520000000004 inverse_flattening: 298.25722356300003 spatial_epsg: 3031 spatial_ref: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] crs_wkt: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] GeoTransform: -2670000.0000000000, 1000.0000000000000, 0.0000000000000000, 2270000.0000000000, 0.0000000000000000, -1000.0000000000000 origname: Polar_Stereographic fullnamepath: /delta_h/Polar_Stereographic |
| delta_h_delta_h: | Array of 32 bit Reals [delta_h_time = 0..14][delta_h_y = 0..4460][delta_h_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters dimensions: time,y,x datatype: float32 description: Height change relative to the datum (Jan 1, 2020) surface long_name: height change at 1 km source: ATBD section 3.4 origname: delta_h fullnamepath: /delta_h/delta_h grid_mapping: delta_h_Polar_Stereographic coordinates: delta_h_time delta_h_y delta_h_x |
| delta_h_ice_area: | Array of 32 bit Reals [delta_h_time = 0..14][delta_h_y = 0..4460][delta_h_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters^2 dimensions: time,y,x datatype: float32 description: Ice-covered area of each 1x1 km grid cell, accounting for the area distortion in the polar-stereographic projections long_name: ice-covered area at 1 km source: ATBD section 3.4 origname: ice_area fullnamepath: /delta_h/ice_area grid_mapping: delta_h_Polar_Stereographic coordinates: delta_h_time delta_h_y delta_h_x |
| delta_h_data_count: | Array of 32 bit Reals [delta_h_time = 0..14][delta_h_y = 0..4460][delta_h_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: counts dimensions: time,y,x datatype: float32 description: Weighted number of data contributing to each node in the 1-km height-change grid long_name: data count source: ATBD section 5.2.4.4 origname: data_count fullnamepath: /delta_h/data_count grid_mapping: delta_h_Polar_Stereographic coordinates: delta_h_time delta_h_y delta_h_x |
| dhdt_lag1_Polar_Stereographic: | 16 bit Integer standard_name: Polar_Stereographic grid_mapping_name: polar_stereographic straight_vertical_longitude_from_pole: 0.0000000000000000 latitude_of_projection_origin: -90.000000000000000 standard_parallel: -71.000000000000000 scale_factor_at_projection_origin: 1.0000000000000000 false_easting: 0.0000000000000000 false_northing: 0.0000000000000000 semi_major_axis: 6378.1369999999997 semi_minor_axis: 6356.7520000000004 inverse_flattening: 298.25722356300003 spatial_epsg: 3031 spatial_ref: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] crs_wkt: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] GeoTransform: -2670000.0000000000, 1000.0000000000000, 0.0000000000000000, 2270000.0000000000, 0.0000000000000000, -1000.0000000000000 origname: Polar_Stereographic fullnamepath: /dhdt_lag1/Polar_Stereographic |
| dhdt_lag1_ice_area: | Array of 32 bit Reals [dhdt_lag1_time = 0..13][dhdt_lag1_y = 0..4460][dhdt_lag1_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters^2 dimensions: time,y,x datatype: float32 description: Ice-covered area of each 1x1 km grid cell for quarterly change in height, accounting for the area distortion in the polar-stereographic projections long_name: ice-covered area at 1 km, for quarterly change in height source: ATBD section 3.4 origname: ice_area fullnamepath: /dhdt_lag1/ice_area grid_mapping: dhdt_lag1_Polar_Stereographic coordinates: dhdt_lag1_time dhdt_lag1_y dhdt_lag1_x |
| dhdt_lag1_dhdt: | Array of 32 bit Reals [dhdt_lag1_time = 0..13][dhdt_lag1_y = 0..4460][dhdt_lag1_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Quarterly height-change rate long_name: quarterly height-change rate at 1 km source: ATBD section 3.4 origname: dhdt fullnamepath: /dhdt_lag1/dhdt grid_mapping: dhdt_lag1_Polar_Stereographic coordinates: dhdt_lag1_time dhdt_lag1_y dhdt_lag1_x |
| dhdt_lag1_dhdt_sigma: | Array of 32 bit Reals [dhdt_lag1_time = 0..13][dhdt_lag1_y = 0..4460][dhdt_lag1_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Estimated error in quarterly height-change rate long_name: quarterly height-change rate uncertainty at 1 km source: ATBD section 3.4 origname: dhdt_sigma fullnamepath: /dhdt_lag1/dhdt_sigma grid_mapping: dhdt_lag1_Polar_Stereographic coordinates: dhdt_lag1_time dhdt_lag1_y dhdt_lag1_x |
| dhdt_lag12_Polar_Stereographic: | 16 bit Integer standard_name: Polar_Stereographic grid_mapping_name: polar_stereographic straight_vertical_longitude_from_pole: 0.0000000000000000 latitude_of_projection_origin: -90.000000000000000 standard_parallel: -71.000000000000000 scale_factor_at_projection_origin: 1.0000000000000000 false_easting: 0.0000000000000000 false_northing: 0.0000000000000000 semi_major_axis: 6378.1369999999997 semi_minor_axis: 6356.7520000000004 inverse_flattening: 298.25722356300003 spatial_epsg: 3031 spatial_ref: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] crs_wkt: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] GeoTransform: -2670000.0000000000, 1000.0000000000000, 0.0000000000000000, 2270000.0000000000, 0.0000000000000000, -1000.0000000000000 origname: Polar_Stereographic fullnamepath: /dhdt_lag12/Polar_Stereographic |
| dhdt_lag12_ice_area: | Array of 32 bit Reals [dhdt_lag12_time = 0..2][dhdt_lag12_y = 0..4460][dhdt_lag12_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters^2 dimensions: time,y,x datatype: float32 description: Ice-covered area of each 1x1 km grid cell for triennial change in height, accounting for the area distortion in the polar-stereographic projections long_name: ice-covered area at 1 km, for triennial change in height source: ATBD section 3.4 origname: ice_area fullnamepath: /dhdt_lag12/ice_area grid_mapping: dhdt_lag12_Polar_Stereographic coordinates: dhdt_lag12_time dhdt_lag12_y dhdt_lag12_x |
| dhdt_lag12_dhdt: | Array of 32 bit Reals [dhdt_lag12_time = 0..2][dhdt_lag12_y = 0..4460][dhdt_lag12_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Triennial height-change rate long_name: triennial height-change rate at 1 km source: ATBD section 3.4 origname: dhdt fullnamepath: /dhdt_lag12/dhdt grid_mapping: dhdt_lag12_Polar_Stereographic coordinates: dhdt_lag12_time dhdt_lag12_y dhdt_lag12_x |
| dhdt_lag12_dhdt_sigma: | Array of 32 bit Reals [dhdt_lag12_time = 0..2][dhdt_lag12_y = 0..4460][dhdt_lag12_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Estimated error in triennial height-change rate long_name: triennial height-change rate uncertainty at 1 km source: ATBD section 3.4 origname: dhdt_sigma fullnamepath: /dhdt_lag12/dhdt_sigma grid_mapping: dhdt_lag12_Polar_Stereographic coordinates: dhdt_lag12_time dhdt_lag12_y dhdt_lag12_x |
| dhdt_lag4_Polar_Stereographic: | 16 bit Integer standard_name: Polar_Stereographic grid_mapping_name: polar_stereographic straight_vertical_longitude_from_pole: 0.0000000000000000 latitude_of_projection_origin: -90.000000000000000 standard_parallel: -71.000000000000000 scale_factor_at_projection_origin: 1.0000000000000000 false_easting: 0.0000000000000000 false_northing: 0.0000000000000000 semi_major_axis: 6378.1369999999997 semi_minor_axis: 6356.7520000000004 inverse_flattening: 298.25722356300003 spatial_epsg: 3031 spatial_ref: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] crs_wkt: PROJCS["WGS 84 / Antarctic Polar Stereographic",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Polar_Stereographic"],PARAMETER["latitude_of_origin",-71],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3031"]] GeoTransform: -2670000.0000000000, 1000.0000000000000, 0.0000000000000000, 2270000.0000000000, 0.0000000000000000, -1000.0000000000000 origname: Polar_Stereographic fullnamepath: /dhdt_lag4/Polar_Stereographic |
| dhdt_lag4_ice_area: | Array of 32 bit Reals [dhdt_lag4_time = 0..10][dhdt_lag4_y = 0..4460][dhdt_lag4_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters^2 dimensions: time,y,x datatype: float32 description: Ice-covered area of each 1x1 km grid cell for annual change in height, accounting for the area distortion in the polar-stereographic projections long_name: ice-covered area at 1 km, for annual change in height source: ATBD section 3.4 origname: ice_area fullnamepath: /dhdt_lag4/ice_area grid_mapping: dhdt_lag4_Polar_Stereographic coordinates: dhdt_lag4_time dhdt_lag4_y dhdt_lag4_x |
| dhdt_lag4_dhdt: | Array of 32 bit Reals [dhdt_lag4_time = 0..10][dhdt_lag4_y = 0..4460][dhdt_lag4_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Annual height-change rate long_name: annual height-change rate at 1 km source: ATBD section 3.4 origname: dhdt fullnamepath: /dhdt_lag4/dhdt grid_mapping: dhdt_lag4_Polar_Stereographic coordinates: dhdt_lag4_time dhdt_lag4_y dhdt_lag4_x |
| dhdt_lag4_dhdt_sigma: | Array of 32 bit Reals [dhdt_lag4_time = 0..10][dhdt_lag4_y = 0..4460][dhdt_lag4_x = 0..5460] _FillValue: 3.402823466e+38 least_significant_digit: 4 units: meters years^-1 dimensions: time,y,x datatype: float32 description: Estimated error in annual height-change rate long_name: annual height-change rate uncertainty at 1 km source: ATBD section 3.4 origname: dhdt_sigma fullnamepath: /dhdt_lag4/dhdt_sigma grid_mapping: dhdt_lag4_Polar_Stereographic coordinates: dhdt_lag4_time dhdt_lag4_y dhdt_lag4_x |
| delta_h_time: | Array of 64 bit Reals [delta_h_time = 0..14] _FillValue: 1.7976931348623157e+308 units: days since 2018-01-01 dimensions: time datatype: float64 coordinates: time least_significant_digit: None description: Time for each node, in days since 2018-01-01:T00.00.00 UTC long_name: quarterly h(t) time source: ATBD section 4.2 origname: time fullnamepath: /delta_h/time |
| delta_h_x: | Array of 64 bit Reals [delta_h_x = 0..5460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: x datatype: float64 coordinates: x least_significant_digit: None description: x coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic x at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_x_coordinate origname: x fullnamepath: /delta_h/x |
| delta_h_y: | Array of 64 bit Reals [delta_h_y = 0..4460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: y datatype: float64 coordinates: y least_significant_digit: None description: y coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic y at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_y_coordinate origname: y fullnamepath: /delta_h/y |
| dhdt_lag1_time: | Array of 64 bit Reals [dhdt_lag1_time = 0..13] _FillValue: 1.7976931348623157e+308 units: days since 2018-01-01 dimensions: time datatype: float64 coordinates: time least_significant_digit: None description: Time for the midpoint of each quarterly height-change rate, in days since 2018-01-01:T00.00.00 UTC long_name: quarterly dh/dt time source: ATBD section 4.2 origname: time fullnamepath: /dhdt_lag1/time |
| dhdt_lag1_x: | Array of 64 bit Reals [dhdt_lag1_x = 0..5460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: x datatype: float64 coordinates: x least_significant_digit: None description: x coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic x at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_x_coordinate origname: x fullnamepath: /dhdt_lag1/x |
| dhdt_lag1_y: | Array of 64 bit Reals [dhdt_lag1_y = 0..4460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: y datatype: float64 coordinates: y least_significant_digit: None description: y coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic y at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_y_coordinate origname: y fullnamepath: /dhdt_lag1/y |
| dhdt_lag12_time: | Array of 64 bit Reals [dhdt_lag12_time = 0..2] _FillValue: 1.7976931348623157e+308 units: days since 2018-01-01 dimensions: time datatype: float64 coordinates: time least_significant_digit: None description: Time for the midpoint of each triennial height-change rate, in days since 2018-01-01:T00.00.00 UTC long_name: triennial dh/dt time source: ATBD section 4.2 origname: time fullnamepath: /dhdt_lag12/time |
| dhdt_lag12_x: | Array of 64 bit Reals [dhdt_lag12_x = 0..5460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: x datatype: float64 coordinates: x least_significant_digit: None description: x coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic x at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_x_coordinate origname: x fullnamepath: /dhdt_lag12/x |
| dhdt_lag12_y: | Array of 64 bit Reals [dhdt_lag12_y = 0..4460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: y datatype: float64 coordinates: y least_significant_digit: None description: y coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic y at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_y_coordinate origname: y fullnamepath: /dhdt_lag12/y |
| dhdt_lag4_time: | Array of 64 bit Reals [dhdt_lag4_time = 0..10] _FillValue: 1.7976931348623157e+308 units: days since 2018-01-01 dimensions: time datatype: float64 coordinates: time least_significant_digit: None description: Time for the midpoint of each annual height-change rate, in days since 2018-01-01:T00.00.00 UTC long_name: annual dh/dt time source: ATBD section 4.2 origname: time fullnamepath: /dhdt_lag4/time |
| dhdt_lag4_x: | Array of 64 bit Reals [dhdt_lag4_x = 0..5460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: x datatype: float64 coordinates: x least_significant_digit: None description: x coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic x at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_x_coordinate origname: x fullnamepath: /dhdt_lag4/x |
| dhdt_lag4_y: | Array of 64 bit Reals [dhdt_lag4_y = 0..4460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: y datatype: float64 coordinates: y least_significant_digit: None description: y coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic y at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_y_coordinate origname: y fullnamepath: /dhdt_lag4/y |
| dhdt_lag8_time: | Array of 64 bit Reals [dhdt_lag8_time = 0..6] _FillValue: 1.7976931348623157e+308 units: days since 2018-01-01 dimensions: time datatype: float64 coordinates: time least_significant_digit: None description: Time for the midpoint of each biennial height-change rate, in days since 2018-01-01:T00.00.00 UTC long_name: biennial dh/dt time source: ATBD section 4.2 origname: time fullnamepath: /dhdt_lag8/time |
| dhdt_lag8_x: | Array of 64 bit Reals [dhdt_lag8_x = 0..5460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: x datatype: float64 coordinates: x least_significant_digit: None description: x coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic x at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_x_coordinate origname: x fullnamepath: /dhdt_lag8/x |
| dhdt_lag8_y: | Array of 64 bit Reals [dhdt_lag8_y = 0..4460] _FillValue: 1.7976931348623157e+308 units: meters dimensions: y datatype: float64 coordinates: y least_significant_digit: None description: y coordinate of the 1-km cell centers, in projected coordinates long_name: polar stereographic y at 1km source: ATBD section 3.2 grid_mapping: Polar_Stereographic standard_name: projection_y_coordinate origname: y fullnamepath: /dhdt_lag8/y |
| orbit_info_bounding_polygon_dim1: | Array of 32 bit Integers [orbit_info_bounding_polygon_dim1 = 0..135] long_name: Polygon vertex count units: 1 source: model contentType: modelResult description: Polygon extent vertex count origname: bounding_polygon_dim1 fullnamepath: /orbit_info/bounding_polygon_dim1 |
| quality_assessment_phony_dim_1: | Array of 32 bit Reals [quality_assessment_phony_dim_1 = 0..0] |
| tile_stats_x: | Array of 64 bit Reals [tile_stats_x = 0..135] _FillValue: 1.7976931348623157e+308 units: meters dimensions: x datatype: float64 coordinates: x description: tile-center x-coordinate, in projected coordinates long_name: x source: 4.1.2.1 grid_mapping: Polar_Stereographic origname: x fullnamepath: /tile_stats/x |
| tile_stats_y: | Array of 64 bit Reals [tile_stats_y = 0..110] _FillValue: 1.7976931348623157e+308 units: meters dimensions: y datatype: float64 coordinates: y description: tile-center y-coordinate, in projected coordinates long_name: y source: 4.1.2.1 grid_mapping: Polar_Stereographic origname: y fullnamepath: /tile_stats/y |