Attributes { Polar_Stereographic { String standard_name "Polar_Stereographic"; String grid_mapping_name "polar_stereographic"; Float64 straight_vertical_longitude_from_pole 0.000000000000000; Float64 latitude_of_projection_origin -90.00000000000000; Float64 standard_parallel -71.00000000000000; Float64 scale_factor_at_projection_origin 1.000000000000000; Float64 false_easting 0.000000000000000; Float64 false_northing 0.000000000000000; Float64 semi_major_axis 6378.137000000000; Float64 semi_minor_axis 6356.752000000000; Float64 inverse_flattening 298.2572235630000; String spatial_epsg "3031"; String 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\"]]"; String 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\"]]"; Float64 GeoTransform -2670000.000000000, 100.0000000000000, 0.000000000000000, 2270000.000000000, 0.000000000000000, -100.0000000000000; } x { Float64 _FillValue 1.797693134862316e+308; String units "meters"; String dimensions "x"; String datatype "float64"; String coordinates "x"; String least_significant_digit "None"; String description "x coordinate of the DEM cell centers, in projected coordinates"; String long_name "Polar stereographic x"; String source "3.2"; String standard_name "projection_x_coordinate"; } y { Float64 _FillValue 1.797693134862316e+308; String units "meters"; String dimensions "y"; String datatype "float64"; String coordinates "y"; String least_significant_digit "None"; String description "y coordinate of the DEM cell centers, in projected coordinates "; String long_name "Polar stereographic y"; String source "3.2"; String standard_name "projection_y_coordinate"; } ice_area { Float32 _FillValue 3.40282347e+38; String units "meters^2"; String dimensions "y, x"; String datatype "float32"; String coordinates "y x"; String least_significant_digit "None"; String description "Ice-covered area of each grid cell, accounting for the area distortion in the polar-stereographic projections"; String long_name "DEM grid ice-covered area"; String source "3.4"; String grid_mapping "Polar_Stereographic"; } h { Float32 _FillValue 3.40282347e+38; String units "meters"; String dimensions "y, x"; String datatype "float32"; String coordinates "y x"; String least_significant_digit "4"; String description "DEM surface height, referenced to WGS84"; String long_name "DEM height"; String source "3.2"; String grid_mapping "Polar_Stereographic"; } h_sigma { Float32 _FillValue 3.40282347e+38; String units "meters"; String dimensions "y, x"; String datatype "float32"; String coordinates "y x"; String least_significant_digit "4"; String description "Uncertainty in the DEM surface height"; String long_name "DEM uncertainty"; String source "4.1"; String grid_mapping "Polar_Stereographic"; } data_count { Float32 _FillValue 3.40282347e+38; String units "counts"; String dimensions "y, x"; String datatype "float32"; String coordinates "y x"; String least_significant_digit "None"; String description "Weighted number of data contributing to each node in the DEM."; String long_name "DEM data count"; String source "5.2.4.4"; String grid_mapping "Polar_Stereographic"; } misfit_rms { Float32 _FillValue 3.40282347e+38; String units "meters"; String dimensions "y, x"; String datatype "float32"; String coordinates "y x"; String least_significant_digit "None"; String description "Root-mean_square of the residuals associated with each DEM node"; String long_name "DEM per-node data residual"; String source "5.2.4.4"; String grid_mapping "Polar_Stereographic"; } misfit_scaled_rms { Float32 _FillValue 3.40282347e+38; String units "counts"; String dimensions "y, x"; String datatype "float32"; String coordinates "y x"; String least_significant_digit "None"; String description "Root-mean_square of the error-scaled residuals associated with each DEM node"; String long_name "DEM per-node scaled data uncertainty"; String source "5.2.4.4"; String grid_mapping "Polar_Stereographic"; } NC_GLOBAL { String GDAL_AREA_OR_POINT "Area"; String Conventions "CF-1.6"; String short_name "ATL14"; String level "L3B"; String title "SET_BY_META"; String description "This data set (ATL14) contains seasonal gridded land ice elevation."; String 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)"; String contributor_role "Investigator, Investigator, Algorithm Developer, Algorithm Developer, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Investigator, Algorithm Developer"; String date_type "UTC"; Float64 geospatial_lat_max -58.52928489588871; Float64 geospatial_lat_min -90.00000000000000; String geospatial_lat_units "degrees_north"; Float64 geospatial_lon_max 180.0000000000000; Float64 geospatial_lon_min -180.0000000000000; String geospatial_lon_units "degrees_east"; String granule_type "ATL14"; String identifier_product_doi_authority "http://dx.doi.org"; 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 reference_frame "ITRF2014"; String shortName "ATL14_META"; String spatial_coverage_type "Horizontal"; String standard_name_vocabulary "CF-1.6"; String time_type "CCSDS UTC-A"; String vertical_datum "WGS84"; String date_created "2023-09-08T15:03:40.885372Z"; String fileName "ATL14_A2_0318_100m_003_01.nc"; String history "2023-09-08T15:03:40.885372Z"; String identifier_product_format_version "3.0"; Float64 time_coverage_duration 127871867.6481400; String time_coverage_end "2023-04-16T23:57:48.648140Z"; String time_coverage_start "2019-03-29T00:00:01.000000Z"; String netcdfversion "4.9.2"; String identifier_file_uuid "1722f6fd-bd85-419b-a58d-ae02b441b53f"; 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 identifier_product_type "ATL14"; String identifier_product_doi "doi:10.5067/ATLAS/ATL14.003"; 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 ATL14 is to provide an IceSat-2 gridded satellite summary of heights of land-based ice."; String keywords "EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION > 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 "3B"; 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"; } }