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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=1|netcdflibversion=|hdf5libversion=1.8.17
attribute NC_GLOBAL acknowledgement String This project was supported in part by a grant from the NOAA Climate Data Record Program. Production of original NASA Team and Bootstrap algorithm estimates supported by the NASA Polar Distributed Active Archive Center. The sea ice concentration algorithms were developed by Donald J. Cavalieri, Josefino C. Comiso, Claire L. Parkinson, and others at the NASA Goddard Space Flight Center in Greenbelt, MD.
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL contributor_name String Walt Meier, Ruth Duerr, Florence Fetterer, Julienne Stroeve, Matt Savoie, Sean Mallory
attribute NC_GLOBAL contributor_role String PrincipalInvestigator,author,author,author,author,author
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_email String nsidc at
attribute NC_GLOBAL creator_name String NSIDC
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL date_created String 2018-10-01T20:22:55Z
attribute NC_GLOBAL defaultGraphQuery String latitude[(5837500.0):(-5337500.0)][(-3837500.0):(3737500.0)]&.draw=surface&.vars=xgrid%7Cygrid%7Clatitude&.colorBar=BlackWhite%7C%7C%7C%7C%7C&.bgColor=0xffccccff
attribute NC_GLOBAL history String 2017-07-03T15:07:45Z: Data file created using software: /n 2019-02-27T12:24:52: Additional metadata was added. Timestamp was converted to seconds since 1970-01-01T00:00:00Z.
attribute NC_GLOBAL id String G02202
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String NSIDC > National Snow and Ice Data Center, NOAA
attribute NC_GLOBAL keywords String america, arctic, area, atlantic, barents, bay, beaufort, bering, bootstrap, canada, center, chukchi, climate, concentration, continent, CONTINENT > NORTH AMERICA > CANADA > HUDSON BAY, Continent > North America > Canada > Hudson Bay, cryosphere, data, davis, day, deviation, distribution, earth, Earth Science > Cryosphere > Sea Ice > Ice Extent, Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration, Earth Science > Oceans > Sea Ice > Ice Extent, edited, estimated, extent, flag, flags, fraction, geographic, Geographic Region > Arctic, Geographic Region > Northern Hemisphere, Geographic Region > Polar, goddard, goddard_bt_seaice_conc_monthly, goddard_merged_seaice_conc_monthly, goddard_nt_seaice_conc_monthly, gulf, hemisphere, hudson, ice, ice distribution, lawrence, mayen, melt, microwave, nasa, national, noaa, noaa/nsidc, north, northern, norwegian, nsidc, ocean, Ocean > Arctic Ocean, Ocean > Arctic Ocean > Barents Sea, Ocean > Arctic Ocean > Beaufort Sea, Ocean > Arctic Ocean > Chukchi Sea, Ocean > Atlantic Ocean > North Atlantic Ocean > Davis Straight, OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF ST LAWRENCE, Ocean > Atlantic Ocean > North Atlantic Ocean > North Sea, Ocean > Atlantic Ocean > North Atlantic Ocean > Norwegian Sea, OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > SVALBARD AND JAN MAYEN, Ocean > Pacific Ocean, Ocean > Pacific Ocean > North Pacific Ocean > Bering Sea, Ocean > Pacific Ocean > North Pacific Ocean > Sea Of Okhotsk, oceans, okhotsk, pacific, passive, polar, sea, snow, straight, svalbard, xgrid, ygrid
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
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. Please acknowledge the use of these data with the following statement: \"These data were provided by NOAA's Center for Satellite Applications & Research (STAR) and the CoastWatch program and distributed by NOAA/NMFS/SWFSC/ERD. \" To reference these data as a citation in a paper, please follow the instructions in the license and at this link:
attribute NC_GLOBAL Metadata_Link String (external link)
attribute NC_GLOBAL naming_authority String
attribute NC_GLOBAL platform String DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17
attribute NC_GLOBAL processing_level String NOAA Level 3
attribute NC_GLOBAL product_version String v03r01
attribute NC_GLOBAL program String NOAA Climate Data Record Program
attribute NC_GLOBAL proj_false_easting double 0.0
attribute NC_GLOBAL proj_false_northing double 0.0
attribute NC_GLOBAL proj_GeoTransform String -3850000.0 25000.0 0 5850000.0 0 25000.0
attribute NC_GLOBAL proj_grid_boundary_bottom_projected_y double -5350000.0
attribute NC_GLOBAL proj_grid_boundary_left_projected_x double -3850000.0
attribute NC_GLOBAL proj_grid_boundary_right_projected_x double 3750000.0
attribute NC_GLOBAL proj_grid_boundary_top_projected_y double 5850000.0
attribute NC_GLOBAL proj_grid_mapping_name String polar_stereographic
attribute NC_GLOBAL proj_latitude_of_projection_origin double 90.0
attribute NC_GLOBAL proj_longitude_of_projection_origin double -45.0
attribute NC_GLOBAL proj_parent_grid_cell_column_subset_end double 304.0
attribute NC_GLOBAL proj_parent_grid_cell_column_subset_start double 0.0
attribute NC_GLOBAL proj_parent_grid_cell_row_subset_end double 448.0
attribute NC_GLOBAL proj_parent_grid_cell_row_subset_start double 0.0
attribute NC_GLOBAL proj_proj4text String +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
attribute NC_GLOBAL proj_scaling_factor double 1.0
attribute NC_GLOBAL proj_semimajor_radius double 6378273.0
attribute NC_GLOBAL proj_semiminor_radius double 6356889.449
attribute NC_GLOBAL proj_spatial_ref String 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\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4054\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],PROJECTION[\"Polar_Stereographic\"],PARAMETER[\"latitude_of_origin\",70],PARAMETER[\"central_meridian\",-45],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],AUTHORITY[\"EPSG\",\"3411\"],AXIS[\"X\",UNKNOWN],AXIS[\"Y\",UNKNOWN]]
attribute NC_GLOBAL proj_srid String urn:ogc:def:crs:EPSG::3411
attribute NC_GLOBAL proj_standard_parallel double 70.0
attribute NC_GLOBAL proj_straight_vertical_longitude_from_pole double 135.0
attribute NC_GLOBAL proj_units String meters
attribute NC_GLOBAL project String NOAA/NSIDC passive microwave sea ice concentration climate data record
attribute NC_GLOBAL projection String EPSG:3411,
attribute NC_GLOBAL publisher_email String at
attribute NC_GLOBAL publisher_name String NOAA NMFS SWFSC ERD
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL publisher_url String (external link)
attribute NC_GLOBAL references String Comiso, J. C., and F. Nishio. 2008. Trends in the Sea Ice Cover Using Enhanced and Compatible AMSR-E, SSM/I, and SMMR Data. Journal of Geophysical Research 113, C02S07, doi:10.1029/2007JC0043257. ; Comiso, J. C., D. Cavalieri, C. Parkinson, and P. Gloersen. 1997. Passive Microwave Algorithms for Sea Ice Concentrations: A Comparison of Two Techniques. Remote Sensing of the Environment 60(3):357-84. ; Comiso, J. C. 1984. Characteristics of Winter Sea Ice from Satellite Multispectral Microwave Observations. Journal of Geophysical Research 91(C1):975-94. ; Cavalieri, D. J., P. Gloersen, and W. J. Campbell. 1984. Determination of Sea Ice Parameters with the NIMBUS-7 SMMR. Journal of Geophysical Research 89(D4):5355-5369. ; Cavalieri, D. J., C. l. Parkinson, P. Gloersen, J. C. Comiso, and H. J. Zwally. 1999. Deriving Long-term Time Series of Sea Ice Cover from Satellite Passive-Microwave Multisensor Data Sets. Journal of Geophysical Research 104(7):\t15,803-15,814.
attribute NC_GLOBAL sensor String SSMI/S > Special Sensor Microwave Imager/Sounder
attribute NC_GLOBAL software_version_id String
attribute NC_GLOBAL source String  Satellite observations
attribute NC_GLOBAL sourceUrl String (external link)
attribute NC_GLOBAL spatial_resolution String 25km
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String This ERDDAP data set provides the latitude - longitude grid for the Arctic (Northern Hemisphere) NSIDC passive microwave sea ice concentration climate data record (CDR) datasets distributed via the PolarWatch ERDDAP. The grid used for these datasets is the NSIDC polar stereographic grid with 25 x 25 km grid cells. The input netCDF files from NSIDC contain data variables and reference latitude and longitude variables. These are provided in this ERDDAP as separate datasets based on system architecture requirements.
attribute NC_GLOBAL title String Sea Ice Concentration Lat-Lon Grid, NOAA/NSIDC Climate Data Record, Northern Hemisphere, 25km
dimension ygrid float nValues=448, evenlySpaced=true, averageSpacing=-25000.0
attribute ygrid _ChunkSizes uint 448
attribute ygrid _CoordinateAxisType String GeoY
attribute ygrid actual_range float -5337500.0, 5837500.0
attribute ygrid axis String Y
attribute ygrid comment String  xgrid values are the centers of the grid cells
attribute ygrid coverage_content_type String coordinate
attribute ygrid ioos_category String Location
attribute ygrid long_name String Projection Y Coordinate
attribute ygrid standard_name String projection_y_coordinate
attribute ygrid units String meters
attribute ygrid valid_range float -5350000.0, 5850000.0
dimension xgrid float nValues=304, evenlySpaced=true, averageSpacing=25000.0
attribute xgrid _ChunkSizes uint 304
attribute xgrid _CoordinateAxisType String GeoX
attribute xgrid actual_range float -3837500.0, 3737500.0
attribute xgrid axis String X
attribute xgrid comment String  xgrid values are the centers of the grid cells
attribute xgrid coverage_content_type String coordinate
attribute xgrid ioos_category String Location
attribute xgrid long_name String Projection X Coordinate
attribute xgrid standard_name String projection_x_coordinate
attribute xgrid units String meters
attribute xgrid valid_range float -3850000.0, 3750000.0
variable longitude double ygrid, xgrid
attribute longitude _FillValue double -999.0
attribute longitude comment String These are longitude coordinate values which correspond to xgrid projected coordinate dimension values
attribute longitude coverage_content_type String coordinate
attribute longitude ioos_category String Location
attribute longitude long_name String longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude valid_range double -180.0, 180.0
variable latitude double ygrid, xgrid
attribute latitude _FillValue double -999.0
attribute latitude comment String These are latitude coordinate values which correspond to ygrid projected coordinate dimension values
attribute latitude coverage_content_type String coordinate
attribute latitude ioos_category String Location
attribute latitude long_name String latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude valid_range double 0.0, 90.0

ERDDAP, Version 2.23
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