Easier access to scientific data
Brought to you by NOAA NMFS SWFSC ERD
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PolarWatch ERDDAP
Easier access to scientific data |
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Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Polar Stereographic Grid Cell Area Values of 25km gridded data sets , Polar Stereographic (North), Ancillary Data 
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| Institution: | NASA National Snow and Ice Data Center Distributed Active Archive Center (Dataset ID: pstere_gridcell_N25k) |
| Information: | Summary
| License
| Metadata
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Attributes {
y {
Float64 actual_range -5337500.0, 5837500.0;
String axis "Y";
String ioos_category "Location";
String long_name "y coordinate of projection";
String standard_name "projection_y_coordinate";
String units "meters";
Float64 valid_range -5350000.0, 5850000.0;
}
x {
Float64 actual_range -3837500.0, 3737500.0;
String axis "X";
String ioos_category "Location";
String long_name "x coordinate of projection";
String standard_name "projection_x_coordinate";
String units "meters";
Float64 valid_range -3850000.0, 3750000.0;
}
cell_area {
Float64 colorBarMaximum 7.0e+8;
Float64 colorBarMinimum 3.0e+8;
String comment "Surface area of grid cell";
String coverage_content_type "image";
String ioos_category "Unknown";
String long_name "Grid Cell area";
Float64 missing_value -999.0;
String standard_name "cell_area";
String units "meters^2";
Float64 valid_range 3.82658853953166e+8, 6.644483028171387e+8;
}
NC_GLOBAL {
String acknowledgement "These data are produced and supported by the NASA National Snow and Ice Data Center Distributed Active Archive Center.";
String cdm_data_type "Grid";
String contributor_name "J. Scott Stewart, Walter N. Meier, Donna J. Scott";
String contributor_role "Scientific Programmer, Project Scientist, Project Lead";
String Conventions "CF-1.6, ACDD-1.3, COARDS";
String creator_name "NASA National Snow and Ice Data Center Distributed Active Archive Center";
String creator_type "group";
String creator_url "https://www.nasa.gov/";
String date_created "2022-03-21";
String date_metadata_modified "2022-03-21";
String date_modified "2022-03-21";
String geospatial_bounds "POLYGON ((-3850000 5850000, 3750000 5850000, 3750000 -5350000, -3850000 -5350000, -3850000 5850000))";
String geospatial_bounds_crs "EPSG:3411";
String geospatial_x_resolution "25000 meters";
String geospatial_x_units "meters";
String geospatial_y_resolution "25000 meters";
String geospatial_y_units "meters";
String grid_mapping_crs_wkt "PROJCS[\"NSIDC Sea Ice Polar Stereographic North\",GEOGCS[\"Unspecified datum based upon the Hughes 1980 ellipsoid\",DATUM[\"Not_specified_based_on_Hughes_1980_ellipsoid\",SPHEROID[\"Hughes 1980\",6378273,298.279411123061,AUTHORITY[\"EPSG\",\"7058\"]],AUTHORITY[\"EPSG\",\"6054\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4054\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",70],PARAMETER[\"central_meridian\",-45],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],AUTHORITY[\"EPSG\",\"3411\"]]";
Float64 grid_mapping_false_easting 0.0;
Float64 grid_mapping_false_northing 0.0;
String grid_mapping_GeoTransform "-3850000 25000 0 5850000 0 -25000";
Float64 grid_mapping_inverse_flattening 298.279411123064;
Float64 grid_mapping_latitude_of_projection_origin 90.0;
String grid_mapping_long_name "NSIDC_NH_PolarStereo_25km";
Float64 grid_mapping_longitude_of_prime_meridian 0.0;
String grid_mapping_name "polar_stereographic";
String grid_mapping_proj4text "+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +a=6378273 +b=6356889.449 +units=m +no_defs";
Float64 grid_mapping_semi_major_axis 6378273.0;
String grid_mapping_spatial_ref "PROJCS[\"NSIDC Sea Ice Polar Stereographic North\",GEOGCS[\"Unspecified datum based upon the Hughes 1980 ellipsoid\",DATUM[\"Not_specified_based_on_Hughes_1980_ellipsoid\",SPHEROID[\"Hughes 1980\",6378273,298.279411123061,AUTHORITY[\"EPSG\",\"7058\"]],AUTHORITY[\"EPSG\",\"6054\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4054\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",70],PARAMETER[\"central_meridian\",-45],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],AUTHORITY[\"EPSG\",\"3411\"]]";
String grid_mapping_srid "urn:ogc:def:crs:EPSG::3411";
Float64 grid_mapping_standard_parallel 70.0;
Float64 grid_mapping_straight_vertical_longitude_from_pole -45.0;
String history
"2024-04-27T13:08:46Z (local files)
2024-04-27T13:08:46Z https://polarwatch.noaa.gov/erddap/griddap/pstere_gridcell_N25k.das";
String id "10.5067/N6INPBT8Y104";
String infoUrl "https://doi.org/10.5067/N6INPBT8Y104";
String institution "NASA National Snow and Ice Data Center Distributed Active Archive Center";
String keywords "active, analysis, ancillary, archive, area, cell, cell_area, center, data, distributed, earth, EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS, geographic, grid, ice, information, nasa, national, nsidc, polar, science, services, snow, stereo, systems, visualization";
String keywords_vocabulary "GCMD Science Keywords";
String license "Access Constraint: These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/); Use Constraint: These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/use_copyright.html. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.";
String metadata_link "https://doi.org/10.5067/N6INPBT8Y104";
String naming_authority "org.doi.dx";
String product_version "1.0";
String program "NASA Earth Science Data and Information System (ESDIS)";
String publisher_email "nsidc@nsidc.org";
String publisher_institution "National Snow and Ice Data Center; Cooperative Institute for Research in Environmental Sciences; University of Colorado at Boulder; Boulder, CO";
String publisher_name "NASA National Snow and Ice Data Center Distributed Active Archive Center";
String publisher_type "institution";
String publisher_url "https://nsidc.org/daac";
String sourceUrl "(local files)";
String standard_name_vocabulary "CF Standard Name Table v70";
String summary "This data set provides the total on-Earth surface area values at the center of each grid cell of 25km polar stereographic gridded data sets (North) distributed by The National Snow and Ice Data Center";
String title "Polar Stereographic Grid Cell Area Values of 25km gridded data sets , Polar Stereographic (North), Ancillary Data";
}
}
Data Access Protocol (DAP) and its
projection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst),
followed by [(start):stride:(stop)]
(or a shorter variation of that) for each of the variable's dimensions
(for example, [time][latitude][longitude]).
For details, see the griddap Documentation.