NOAA PolarWatch ERDDAP
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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 coastwatch.info at noaa.gov
attribute NC_GLOBAL creator_name String NOAA CoastWatch/PolarWatch
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://coastwatch.noaa.gov/ (external link)
attribute NC_GLOBAL crs_wkt String PROJCS[\"unnamed\", GEOGCS[\"WGS 84\", DATUM[\"WGS_1984\", SPHEROID[\"WGS 84\",6378137,298.257223563, AUTHORITY[\"EPSG\",\"7030\"]], AUTHORITY[\"EPSG\",\"6326\"]], PRIMEM[\"Greenwich\",0], UNIT[\"degree\",0.0174532925199433], AUTHORITY[\"EPSG\",\"4326\"]], PROJECTION[\"Polar_Stereographic\"], PARAMETER[\"latitude_of_origin\",60], PARAMETER[\"central_meridian\",-45], PARAMETER[\"scale_factor\",1], PARAMETER[\"false_easting\",0], PARAMETER[\"false_northing\",0], UNIT[\"metre\",1, AUTHORITY[\"EPSG\",\"9001\"]]]
attribute NC_GLOBAL cw_projection String Polar Stereographic
attribute NC_GLOBAL cw_satellite String Metop-C
attribute NC_GLOBAL cw_sensor String ASCAT
attribute NC_GLOBAL defaultGraphQuery String IceClass%5B(last)%5D%5B(0.0)%5D%5B(3272748.09217783):(-3272748.0921771)%5D%5B(-3272748.09217783):(3272748.0921771)%5D%26.draw=surface%26.vars=cols%7Crows%7CIceClass%26.colorBar=iceclass%7CD%7C%7C1%7C6%7C5%26.bgColor=0xffccccff
attribute NC_GLOBAL geospatial_bounds String POLYGON((-180.000000 47.538530, 135.000000 59.302944, 90.000000 47.538530, 45.000000 59.302944, 0.000000 47.538530, -45.000000 59.302944, -90.000000 47.538530, -135.000000 59.302944, -180.000000 47.538530))
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_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_semi_major_axis double 6378137.0
attribute NC_GLOBAL grid_mapping_standard_parallel double 60.0
attribute NC_GLOBAL grid_mapping_straight_vertical_longitude_from_pole double -45.0
attribute NC_GLOBAL history String Metop-C_ASCAT_IceClass
attribute NC_GLOBAL infoUrl String https://coastwatch.noaa.gov/ (external link)
attribute NC_GLOBAL institution String USDOC/NOAA/NESDIS PolarWatch
attribute NC_GLOBAL instrument String ASCAT
attribute NC_GLOBAL keywords String advanced, altitude, ascat, coastwatch, Earth Science > Oceans > Ice, environmental, geoprojected, ice, ice classification, ice distribution, information, masked, metop, metop-c, national, nesdis, noaa, polar, polarwatch, satellite, scatterometer, service, states, time, united, usdoc
attribute NC_GLOBAL keywords_vocabulary String NASA Global Change Master Directory (GCMD) Science Keywords
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended\nfor legal use, since it may contain inaccuracies. Neither the data\nContributor, ERD, NOAA, nor the United States Government, nor any\nof their employees or contractors, makes any warranty, express or\nimplied, including warranties of merchantability and fitness for a\nparticular purpose, or assumes any legal liability for the accuracy,\ncompleteness, or usefulness, of this information.
attribute NC_GLOBAL OBSERVED_PROPERTY String IceClass
attribute NC_GLOBAL platform String METOP-C
attribute NC_GLOBAL proj4text String +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
attribute NC_GLOBAL publisher_email String coastwatch.info at noaa.gov
attribute NC_GLOBAL publisher_name String NOAA/NESDIS/STAR/SOCD PolarWatch
attribute NC_GLOBAL publisher_url String https://coastwatch.noaa.gov (external link)
attribute NC_GLOBAL source String METOP-C_ASCAT_IceClass
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v79
attribute NC_GLOBAL summary String The ASCAT Ice Classification system takes Enhanced Resolution (4.5 km x 4.5 km) ASCAT Normalized Radar Cross Section (NRCS) and in a two-step process creates an Ice Classification mask with 3 classes (seasonal, perennial, mixed). Primary Input data Enhanced Resolution (4.5 km x 4.5 km) ASCAT Normalized Radar Cross Section (NRCS) created by the Scatterometer Image Reconstruction (SIR) algorithm. Developed by David Long at BYU. National Ice Center's 4 km Interactive Snow and Ice Mask (IMS). Warning: Microwave-based ASCAT sea ice classification may not be reliable during Northern summer months or melt periods (approximately May to September) because melting snow and ice have a distinct microwave radar return that may prevent accurate identification of ice type.
attribute NC_GLOBAL testOutOfDate String now-4days
attribute NC_GLOBAL time_coverage_end String 2024-04-25T12:00:00Z
attribute NC_GLOBAL time_coverage_start String 2021-12-04T12:00:00Z
attribute NC_GLOBAL title String Ice Classification, Metop-C Advanced SCATterometer (ASCAT), 4km, North Pole (Arctic), Daily
dimension time double nValues=872, evenlySpaced=false, averageSpacing=1 day 0h 3m 18s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.6386192E9, 1.7140464E9
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=1530, evenlySpaced=true, averageSpacing=-4280.900055
attribute rows actual_range double -3272748.091917, 3272748.092178
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=1530, evenlySpaced=true, averageSpacing=4280.900055
attribute cols actual_range double -3272748.092178, 3272748.091917
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 IceClass double time, altitude, rows, cols
attribute IceClass _FillValue double 0.0
attribute IceClass colorBarMaximum String 5
attribute IceClass colorBarMinimum String 1
attribute IceClass flag_meanings String Land Water Seasonal Mixed Perennial
attribute IceClass flag_values String 1 2 3 4 5
attribute IceClass grid_mapping String polar_stereographic_proj
attribute IceClass ioos_category String Ice Distribution
attribute IceClass long_name String IceClass
attribute IceClass missing_value double 0.0

 
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