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| Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Acces- sible
| Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | E | Institution | Dataset ID | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| data | graph | public | Ice Concentration, Daily, GCOM-W1 AMSR2, Arctic, 10km, NRT, Past 3 Weeks |
| M | background
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| noaacwAMSR2gw1IceConcDailyNP06 |
| Row Type | Variable Name | Attribute Name | Data Type | Value |
|---|---|---|---|---|
| attribute | NC_GLOBAL | cdm_data_type | String | Grid |
| attribute | NC_GLOBAL | Conventions | String | CF-1.6, COARDS, ACDD-1.3 |
| attribute | NC_GLOBAL | creator_email | String | espcoperations at noaa.gov |
| attribute | NC_GLOBAL | creator_name | String | DOC/NOAA/NESDIS/STAR > IOSSPDT Algorithm Team, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce |
| attribute | NC_GLOBAL | creator_type | String | group |
| attribute | NC_GLOBAL | creator_url | String | http://www.star.nesdis.noaa.gov |
| attribute | NC_GLOBAL | crs_wkt | String | PROJCS["WGS 84 / NSIDC Sea Ice Polar Stereographic North",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",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","3413"]] |
| attribute | NC_GLOBAL | cw_pass_type | String | day/night |
| attribute | NC_GLOBAL | cw_polygon_latitude | double | -0.7268623651938858, 12.72124299521146, 18.906729375857534, 12.72124299521146, -0.7268623651938858, 12.72124299521146, 18.906729375857534, 12.72124299521146, -0.7268623651938858, 12.72124299521146, 18.906729375857534, 12.72124299521146, -0.7268623651938858, 12.72124299521146, 18.906729375857534, 12.72124299521146, -0.7268623651938858 |
| attribute | NC_GLOBAL | cw_polygon_longitude | double | -180.0, 161.565051177078, 135.0, 108.43494882292201, 90.0, 71.56505117707799, 45.0, 18.434948822922006, 0.0, -18.43494882292201, -45.0, -71.56505117707799, -90.0, -108.43494882292201, -135.0, -161.565051177078, -180.0 |
| attribute | NC_GLOBAL | cw_projection | String | Polar Stereographic |
| attribute | NC_GLOBAL | cw_satellite | String | GCOM-W1 |
| attribute | NC_GLOBAL | cw_sensor | String | AMSR2 |
| attribute | NC_GLOBAL | date_created | String | 2021-05-26T04:35:53Z |
| attribute | NC_GLOBAL | defaultGraphQuery | String | IceConc%5Blatest%5D%5B(0.0)%5D%5B(5301656.25):(-5301656.25)%5D%5B(-5301656.25):(5301656.25)%5D&.draw=surface&.vars=cols%7Crows%7CIceConc&.colorBar=KT_ice%7C%7C%7C%7C%7C&.bgColor=0xffccccff |
| attribute | NC_GLOBAL | geospatial_bounds | String | POLYGON((-180.0 -0.726862,161.565051 12.721243,135.0 18.906729,108.434949 12.721243,90.0 -0.726862,71.565051 12.721243,45.0 18.906729,18.434949 12.721243,0.0 -0.726862,-18.434949 12.721243,-45.0 18.906729,-71.565051 12.721243,-90.0 -0.726862,-108.434949 12.721243,-135.0 18.906729,-161.565051 12.721243,-180.0 -0.726862)) |
| attribute | NC_GLOBAL | geospatial_vertical_max | double | 0.0 |
| attribute | NC_GLOBAL | geospatial_vertical_min | double | 0.0 |
| attribute | NC_GLOBAL | geospatial_vertical_positive | String | up |
| attribute | NC_GLOBAL | geospatial_vertical_units | String | m |
| attribute | NC_GLOBAL | grid_mapping_crs_wkt | String | PROJCS["WGS 84 / NSIDC Sea Ice Polar Stereographic North",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",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","3413"]] |
| attribute | NC_GLOBAL | grid_mapping_false_easting | double | 0.0 |
| attribute | NC_GLOBAL | grid_mapping_false_northing | double | 0.0 |
| attribute | NC_GLOBAL | grid_mapping_inverse_flattening | double | 298.257223563 |
| attribute | NC_GLOBAL | grid_mapping_latitude_of_projection_origin | double | 90.0 |
| attribute | NC_GLOBAL | grid_mapping_name | String | polar_stereographic |
| attribute | NC_GLOBAL | grid_mapping_proj4text | String | +proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs |
| attribute | NC_GLOBAL | grid_mapping_semi_major_axis | double | 6378137.0 |
| attribute | NC_GLOBAL | grid_mapping_srid | String | EPSG:3413 |
| attribute | NC_GLOBAL | grid_mapping_standard_parallel | double | 70.0 |
| attribute | NC_GLOBAL | grid_mapping_straight_vertical_longitude_from_pole | double | -45.0 |
| attribute | NC_GLOBAL | infoUrl | String | https://coastwatch.noaa.gov/cw/satellite-data-products/sea-ice.html |
| attribute | NC_GLOBAL | institution | String | DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations, NESDIS, NOAA |
| attribute | NC_GLOBAL | instrument | String | AMSR2 |
| attribute | NC_GLOBAL | keywords | String | altitude, amsr2, amsr2gw1iceconcdailyaggnp06, cols, commerce, concentration, daily, data, day, department, distribution, doc, environmental, flags, fraction, gcom, gcom-w1, graphics, ice, ice distribution, iceconc, information, merge, nasa, national, nesdis, noaa, office, operations, optical, optical properties, osdpd, ospo, overlay, planes, primary, product, properties, quality, rows, satellite, service, team, time |
| attribute | NC_GLOBAL | license | String | 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. |
| attribute | NC_GLOBAL | naming_authority | String | gov.noaa.nesdis.nde |
| attribute | NC_GLOBAL | OBSERVED_PROPERTY | String | IceConc |
| attribute | NC_GLOBAL | platform | String | GCOM-W1 |
| attribute | NC_GLOBAL | processing_level | String | NOAA Level 2 data |
| attribute | NC_GLOBAL | proj4text | String | +proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs |
| attribute | NC_GLOBAL | proj_crs_code | String | EPSG:3413 |
| attribute | NC_GLOBAL | project | String | NPP Data Exploitation: NOAA GCOM-W1 AMSR2 |
| attribute | NC_GLOBAL | publisher_email | String | espcoperations at noaa.gov |
| attribute | NC_GLOBAL | publisher_name | String | DOC/NOAA/NESDIS/NDE > NPP Data Exploitation, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce |
| attribute | NC_GLOBAL | publisher_type | String | group |
| attribute | NC_GLOBAL | publisher_url | String | https://www.ospo.noaa.gov/ |
| attribute | NC_GLOBAL | source | String | GCOM-W1_AMSR2_IceConc |
| attribute | NC_GLOBAL | sourceUrl | String | https://www.star.nesdis.noaa.gov/thredds/dodsC/AMSR2gw1IceConcDailyAggNP06 |
| attribute | NC_GLOBAL | srid | String | EPSG:3413 |
| attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v70 |
| attribute | NC_GLOBAL | summary | String | This dataset is a level 3, daily, 10km, polar stereographic mapped composite of sea ice concentration using data from the GCOM-1 satellite AMSR-2 microwave sensor. These L3 composites are generated from level 2 data provided by NOAA OSPO; NOGAPS algorithm developed by NOAA STAR (Paul Chang, Lead). NOAA CoastWatch obtains L2 from OSPO and generates a L3 daily merged (composite) and maps to polar stereographic projection for routine distribution. The OSPO/STAR L2 product uses the GCOM-W1 AMSR-2 Algorithm Software Processor (GAASP) which takes the full orbital JAXA L1B data via NASA, applies brightness temperature bias corrections, assigns an RFI flag, performs internal reformatting, and then generates L2 products from the NOAA Operational GCOM-W1 AMSR-2 Products System Algorithm (NOGAPS). Platform/Sensor Details: The second Advanced Microwave Scanning Radiometer 2 (AMSR-2) on JAXA's Global Climate Observation Mission - Water 1 (GCOM-W1). Temporal coverage: Daily composites and 4-day rolling merge composites are produced daily with a latency of 12-24 hours. The composites have a 10 km spatial resolution and are mapped to Polar Stereographic projections for North Pole. The AMSR-2 Microwave sensor is not impacted by clouds and serves as a full coverage dataset that supplements the NOAA VIIRS infra-red 750m data. This L3 dataset is originally served on the STAR THREDDS server, PolarWatch connects to the dataset via the STAR ERDDAP server. For more information on the dataset and access servers visit: https://coastwatch.noaa.gov/cw/satellite-data-products/sea-ice.html. |
| attribute | NC_GLOBAL | testOutOfDate | String | now-3days |
| attribute | NC_GLOBAL | time_coverage_end | String | 2024-11-20T13:09:19Z |
| attribute | NC_GLOBAL | time_coverage_start | String | 2021-04-20T19:22:58Z |
| attribute | NC_GLOBAL | title | String | Ice Concentration, Daily, GCOM-W1 AMSR2, Arctic, 10km, NRT, Past 3 Weeks |
| dimension | time | double | nValues=1308, evenlySpaced=false, averageSpacing=1 day 0h 3m 1s | |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 1.6189465785E9, 1.7321081595E9 |
| attribute | time | axis | String | T |
| attribute | time | calendar | String | gregorian |
| attribute | time | ioos_category | String | Time |
| attribute | time | long_name | String | Centered Time |
| attribute | time | standard_name | String | time |
| attribute | time | time_origin | String | 01-JAN-1970 00:00:00 |
| attribute | time | units | String | seconds since 1970-01-01T00:00:00Z |
| dimension | altitude | double | nValues=1, onlyValue=0.0 | |
| attribute | altitude | _CoordinateAxisType | String | Height |
| attribute | altitude | _CoordinateZisPositive | String | up |
| attribute | altitude | actual_range | double | 0.0, 0.0 |
| attribute | altitude | axis | String | Z |
| attribute | altitude | ioos_category | String | Location |
| attribute | altitude | long_name | String | Altitude |
| attribute | altitude | positive | String | up |
| attribute | altitude | standard_name | String | altitude |
| attribute | altitude | units | String | m |
| dimension | rows | double | nValues=1778, evenlySpaced=true, averageSpacing=-9937.5 | |
| attribute | rows | actual_range | double | -8829468.75, 8829468.75 |
| attribute | rows | axis | String | Y |
| attribute | rows | ioos_category | String | Location |
| attribute | rows | long_name | String | Northing of Pixel Centers |
| attribute | rows | standard_name | String | projection_y_coordinate |
| attribute | rows | units | String | m |
| dimension | cols | double | nValues=1778, evenlySpaced=true, averageSpacing=9937.5 | |
| attribute | cols | actual_range | double | -8829468.75, 8829468.75 |
| attribute | cols | axis | String | X |
| attribute | cols | ioos_category | String | Location |
| attribute | cols | long_name | String | Easting of Pixel Centers |
| attribute | cols | standard_name | String | projection_x_coordinate |
| attribute | cols | units | String | m |
| variable | IceConc | double | time, altitude, rows, cols | |
| attribute | IceConc | _FillValue | double | -99.99000000000001 |
| attribute | IceConc | colorBarMaximum | double | 1.0 |
| attribute | IceConc | colorBarMinimum | double | 0.0 |
| attribute | IceConc | cw_fraction_digits | int | 9 |
| attribute | IceConc | ioos_category | String | Ice Distribution |
| attribute | IceConc | long_name | String | NASA Team 2 Ice Concentration (Fraction) - primary product |
| attribute | IceConc | missing_value | double | -99.99000000000001 |
| attribute | IceConc | source | String | Converted on ingest from NetCDF array NASA_Team_2_Ice_Concentration |
| attribute | IceConc | units | String | 1 |
| variable | Flags | short | time, altitude, rows, cols | |
| attribute | Flags | _FillValue | short | -9999 |
| attribute | Flags | colorBarMaximum | double | 150.0 |
| attribute | Flags | colorBarMinimum | double | 0.0 |
| attribute | Flags | cw_fraction_digits | int | 1 |
| attribute | Flags | ioos_category | String | Quality |
| attribute | Flags | long_name | String | Quality Flags |
| attribute | Flags | missing_value | short | -9999 |
| attribute | Flags | units | String | 1 |
| variable | graphics | ubyte | time, altitude, rows, cols | |
| attribute | graphics | _FillValue | ubyte | 0 |
| attribute | graphics | colorBarMaximum | double | 20.0 |
| attribute | graphics | colorBarMinimum | double | 0.0 |
| attribute | graphics | ioos_category | String | Optical Properties |
| attribute | graphics | long_name | String | graphics overlay planes |
| attribute | graphics | missing_value | ubyte | 0 |
The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.