PolarWatch ERDDAP
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Dataset Title: | X- Experimental Sea Ice Classification, SAR Composite, Near Real-Time, 1km, North Pole, Daily ![]() ![]() |
Institution: | NOAA/NESDIS/STAR/SOCD (Dataset ID: snowfox_miz2_daily) |
Information: | Summary ![]() ![]() ![]() |
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Attributes { time { UInt32 _ChunkSizes 1; String _CoordinateAxisType "Time"; Float64 actual_range 1.709337599e+9, 1.733615999e+9; String axis "T"; String CoordinateAxisType "Time"; String ioos_category "Time"; String long_name "Time"; String standard_name "time"; String time_origin "01-JAN-1970 00:00:00"; String units "seconds since 1970-01-01T00:00:00Z"; } level { UInt32 _ChunkSizes 1; String _Unsigned "true"; Byte actual_range 0, 0; String axis "Z"; String ioos_category "Location"; String long_name "Altitude"; String positive "up"; String standard_name "altitude"; String units "m"; } y { UInt32 _ChunkSizes 10998; Float32 actual_range -5498550.0, 5498450.0; String axis "Y"; String comment "y values are the centers of the grid cells"; String ioos_category "Location"; String long_name "y coordinate of projection"; String standard_name "projection_y_coordinate"; String units "m"; } x { UInt32 _ChunkSizes 10998; Float32 actual_range -5498550.0, 5498450.0; String axis "X"; String comment "x values are the centers of the grid cells"; String ioos_category "Location"; String long_name "x coordinate of projection"; String standard_name "projection_x_coordinate"; String units "m"; } SIC { Float32 _FillValue NaN; Float64 colorBarMaximum 8.0; Float64 colorBarMinimum 0.0; String flag_meanings "no data, water, ice concentration less than about 80% (i.e. MIZ), ice concentration less than about 80% (i.e. pack ice)"; Byte flag_values 0, 1, 3, 8; String grid_mapping "crs"; String ioos_category "Ice Distribution"; String long_name "Classified sea ice concentration"; Float32 missing_value NaN; String short_name "SIC"; String standard_name "ice_concentration"; } NC_GLOBAL { String cdm_data_type "Grid"; String contributor_name "NOAA STAR"; String contributor_role "Producer"; String Conventions "CF-1.6, ACCD-1.3, COARDS, ACDD-1.3"; String creator_email "christopher.jackson@noaa.gov"; String creator_institution "NOAA/NESDIS/STAR/SOCD"; String creator_name "NOAA STAR SOCD Water Surface Conditions"; String creator_type "institution"; String creator_url "https://www.star.nesdis.noaa.gov/socd/mecb/sar/index.html"; String date_created "2024-12-11T21:03:51Z"; Int32 frame_count 100; Float64 grid_mapping_false_easting 0.0; Float64 grid_mapping_false_northing 0.0; Float64 grid_mapping_inverse_flattening 298.257223563; Float64 grid_mapping_latitude_of_projection_origin 90.0; String grid_mapping_name "polar_stereographic"; String grid_mapping_proj4 "+proj=stere +lat_0=90 +lat_ts=60 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs"; Float64 grid_mapping_semi_major_axis 6378137.0; String grid_mapping_spatial_ref "PROJCS[\"unknown\",GEOGCS[\"unknown\",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\"]]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",60],PARAMETER[\"central_meridian\",-45],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Easting\",SOUTH],AXIS[\"Northing\",SOUTH]]"; Float64 grid_mapping_standard_parallel 60.0; Float64 grid_mapping_straight_vertical_longitude_from_pole -45.0; String grid_mapping_units "m"; String history "11 December 2024 21:03Z: NetCDF file generated from file Snowfox-DailyBinaryMIZ-2_Composite_1kmCR_2024299T0000_2024299T2359_N100_1Byte.tif 2025-02-10T07:21:16Z (local files) 2025-02-10T07:21:16Z https://polarwatch.noaa.gov/griddap/snowfox_miz2_daily.das"; String infoUrl "https://www.star.nesdis.noaa.gov/socd/mecb/sar/index.html"; String institution "NOAA/NESDIS/STAR/SOCD"; String instrument "C-SAR"; String keywords "1km, active, aperture, arctic, backscatter, c-sar, classification, classified, composite, concentration, cryosphere, daily, data, day, distribution, earth, EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > IMAGING RADARS > C-SAR, Earth Science > Cryosphere > Sea Ice > Ice Extent, environmental, extent, geographic, GEOGRAPHIC REGION > ARCTIC, GEOGRAPHIC REGION > NORTHERN HEMISPHERE, GEOGRAPHIC REGION > POLAR, hemisphere, ice, ice distribution, ice_concentration, imaging, information, instruments, level, national, near, near real time, nesdis, noaa, north, northern, polar, pole, radar, radars, real, real time, real-time, realtime, region, remote, sar, satellite, science, sea, sensing, service, SIC, socd, star, synthetic, time"; String keywords_vocabulary "GCMD Science Keywords"; String license "Contains modified Copernicus Sentinel data 2024 (https://sentinel.esa.int/documents/247904/690755/Sentinel_Data_Legal_Notice/). Sentinel data is obtained from https://scihub.copernicus.eu/dhus. RADARSAT Constellation Mission Imagery Copyright Government of Canada 2024. RCM data is obtained from https://www.eodms-sgdot.nrcan-rncan.gc.ca/index-en.html. RADARSAT-2 Data and Products Copyright MDA Geospatial Services Inc. 2024 - All Rights Reserved. RADARSAT is an official mark of the Canadian Space Agency. RADARSAT-2 data is provided by https://mda.space/en/. The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information."; String naming_authority "gov.noaa.ncei"; String platform "SENTINEL-1A/B,RADARSAT-2,RADARSAT CONSTELLATION MISSION"; String platform_vocabulary "NASA Global Change Master Directory (GCMD) Keywords, Version 9.0"; String processing_level "NOAA Level 2"; String product_version "3"; String project "SAR Operational Product System"; String publisher_institution "NOAA NESDIS STAR"; String publisher_name "NOAA NESDIS STAR"; String publisher_type "institution"; String publisher_url "https://www.star.nesdis.noaa.gov/"; String references "Synthetic Aperture Radar Marine Users Manual. Ed C.R Jackson and J.R. Apel: NOAA: Washington, DC, USA, 2004. ISBN 0-16-073214-X"; String source "SENTINEL-1A/1B, RADARSAT-2, and RADARSAT Contellation Mission SAR imagery"; String sourceUrl "(local files)"; String standard_name_vocabulary "CF Standard Name Table v70"; String summary "This file contains a composite of Synthetic Aperture Radar (SAR) derived sea ice classification covering the Arctic for a period of one day. The files are produced in SAROPS (SAR Operational Product System) by the Water Surface Conditions science team within the NOAA STAR Satellite Oceanography and Climatology Division. Data from the following C-Band SAR systems are included: Sentinel-1, RADARSAT-2, and RADARSAT Constellation Mission. Sea ice classification values represent concentration up to 80%, and greater than 80%. Daily coverage varies depending on SAR acquisitions."; String testOutOfDate "2024-12-08T21:03:51Z"; String time_coverage_duration "P1D"; String time_coverage_end "2024-12-07T23:59:59Z"; String time_coverage_resolution "P1D"; String time_coverage_start "2024-03-01T23:59:59Z"; String title "X- Experimental Sea Ice Classification, SAR Composite, Near Real-Time, 1km, North Pole, Daily"; } }
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.