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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 | files | public | Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V2, Northern Hemisphere, 25km, Near Real-Time, 2021-Present, Monthly |
| M | background
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| nsidcG10016v2nhmday |
| Row Type | Variable Name | Attribute Name | Data Type | Value |
|---|---|---|---|---|
| attribute | NC_GLOBAL | _NCProperties | String | version=2,netcdf=4.8.1,hdf5=1.10.6 |
| 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 | cdr_variable | String | cdr_seaice_conc_monthly |
| attribute | NC_GLOBAL | comment | String | The variable melt_onset_day_cdr_seaice_conc_monthly is not available for this month. |
| attribute | NC_GLOBAL | contributor_name | String | Walter N. Meier, Florence Fetterer, Ann Windnagel, J. Scott Stewart, Trey Stafford, Matt Fisher |
| attribute | NC_GLOBAL | contributor_role | String | principal investigator, author, author, software developer, software developer, software developer |
| attribute | NC_GLOBAL | Conventions | String | CF-1.6, ACDD-1.3, COARDS |
| attribute | NC_GLOBAL | creator_email | String | nsidc at nsidc.org |
| attribute | NC_GLOBAL | creator_name | String | NSIDC |
| attribute | NC_GLOBAL | creator_type | String | institution |
| attribute | NC_GLOBAL | creator_url | String | https://nsidc.org/ |
| attribute | NC_GLOBAL | date_created | String | 2024-11-01T14:39:05Z |
| attribute | NC_GLOBAL | defaultGraphQuery | String | cdr_seaice_conc_monthly[last]%5B(-5337500.0)%5D%5B(3737500.0)%5D&.draw=surface |
| 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_GeoTransform | String | -3850000.0 25000.0 0 5850000.0 0 -25000.0 |
| attribute | NC_GLOBAL | grid_mapping_grid_boundary_bottom_projected_y | double | -5350000.0 |
| attribute | NC_GLOBAL | grid_mapping_grid_boundary_left_projected_x | double | -3850000.0 |
| attribute | NC_GLOBAL | grid_mapping_grid_boundary_right_projected_x | double | 3750000.0 |
| attribute | NC_GLOBAL | grid_mapping_grid_boundary_top_projected_y | double | 5850000.0 |
| attribute | NC_GLOBAL | grid_mapping_latitude_of_projection_origin | double | 90.0 |
| attribute | NC_GLOBAL | grid_mapping_longitude_of_projection_origin | double | -45.0 |
| attribute | NC_GLOBAL | grid_mapping_name | String | polar_stereographic |
| attribute | NC_GLOBAL | grid_mapping_parent_grid_cell_column_subset_end | double | 304.0 |
| attribute | NC_GLOBAL | grid_mapping_parent_grid_cell_column_subset_start | double | 0.0 |
| attribute | NC_GLOBAL | grid_mapping_parent_grid_cell_row_subset_end | double | 448.0 |
| attribute | NC_GLOBAL | grid_mapping_parent_grid_cell_row_subset_start | double | 0.0 |
| 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 +a=6378273 +b=6356889.449 +units=m +no_defs |
| attribute | NC_GLOBAL | grid_mapping_scaling_factor | double | 1.0 |
| attribute | NC_GLOBAL | grid_mapping_semimajor_radius | double | 6378273.0 |
| attribute | NC_GLOBAL | grid_mapping_semiminor_radius | double | 6356889.449 |
| attribute | NC_GLOBAL | grid_mapping_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 | grid_mapping_srid | String | urn:ogc:def:crs:EPSG::3411 |
| attribute | NC_GLOBAL | grid_mapping_standard_parallel | double | 70.0 |
| attribute | NC_GLOBAL | grid_mapping_straight_vertical_longitude_from_pole | double | 135.0 |
| attribute | NC_GLOBAL | grid_mapping_units | String | meters |
| attribute | NC_GLOBAL | history | String | HISTORY_ATTRIBUTE |
| attribute | NC_GLOBAL | id | String | https://doi.org/10.7265/tgam-yv28 |
| attribute | NC_GLOBAL | infoUrl | String | https://nsidc.org/data/G10016/versions/2/ |
| attribute | NC_GLOBAL | institution | String | NSIDC > National Snow and Ice Data Center |
| attribute | NC_GLOBAL | keywords | String | algorithm, america, arctic, area, atlantic, barents, bay, beaufort, bering, bootstrap, canada, cdr_seaice_conc_monthly, center, chukchi, climate, common, concentration, continent, CONTINENT > NORTH AMERICA > CANADA > HUDSON BAY, Continent > North America > Canada > Hudson Bay, cryosphere, data, davis, day, defense, deviation, distribution, dmsp, earth, Earth Science > Cryosphere > Sea Ice > Ice Extent, Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration, Earth Science > Oceans > Sea Ice > Ice Extent, estimated, extent, flag, flags, flight, format, fraction, geographic, Geographic Region > Arctic, Geographic Region > Northern Hemisphere, Geographic Region > Polar, goddard, gsfc, gulf, hemisphere, hudson, ice, ice distribution, lawrence, mayen, melt, melt_onset_day_cdr_seaice_conc_monthly, meteorological, microwave, month, monthly, nasa, national, network, noaa, noaa/nsidc, north, northern, norwegian, nsidc, nsidc_bt_seaice_conc_monthly, nsidc_nt_seaice_conc_monthly, 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, onset, over, pacific, passive, polar, processed, program, qa_of_cdr_seaice_conc_monthly, quality, record, region, satellite, science, sea, sea_ice_area_fraction, sea_ice_area_fraction status_flag, snow, source, space, standard, statistics, status, stdev_of_cdr_seaice_conc_monthly, straight, svalbard, tdim, team, version |
| attribute | NC_GLOBAL | keywords_vocabulary | String | GCMD Science Keywords |
| attribute | NC_GLOBAL | license | String | No constraints on data access or use |
| attribute | NC_GLOBAL | metadata_link | String | https://nsidc.org/data/G10016/versions/2/ |
| attribute | NC_GLOBAL | naming_authority | String | org.doi.dx |
| attribute | NC_GLOBAL | platform | String | DMSP 5D-3/F18 > Defense Meteorological Satellite Program-F18 |
| attribute | NC_GLOBAL | processing_level | String | NOAA Level 3 |
| attribute | NC_GLOBAL | product_version | String | v02r00 |
| attribute | NC_GLOBAL | program | String | NOAA Climate Data Record Program |
| attribute | NC_GLOBAL | proj_crs_code | String | EPSG:3411 |
| attribute | NC_GLOBAL | proj_crs_code_description | String | The proj_crs_code attribute references a registered projection identifier (i.e. EPSG) when available. If the projection is not registered, non-standard then this attribute references a PolarWatch assigned internal identifier. |
| attribute | NC_GLOBAL | project | String | NOAA/NSIDC passive microwave sea ice concentration climate data record |
| 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): 15,803-15,814. ; Comiso, J.C., R.A. Gersten, L.V. Stock, J. Turner, G.J. Perez, and K. Cho. 2017. Positive Trend in the Antarctic Sea Ice Cover and Associated Changes in Surface Temperature. J. Climate, 30, 2251–2267, https://doi.org/10.1175/JCLI-D-16-0408.1 |
| attribute | NC_GLOBAL | sensor | String | SSMI/S > Special Sensor Microwave Imager/Sounder |
| attribute | NC_GLOBAL | software_version_id | String | git@bitbucket.org:nsidc/seaice_cdr.git@22aac63463cb6013d2a29279c81d130e1f1b0403 |
| attribute | NC_GLOBAL | source | String | ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241001_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241002_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241003_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241004_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241005_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241006_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241007_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241008_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241009_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241010_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241011_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241012_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241013_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241014_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241015_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241016_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241017_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241018_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241019_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241020_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241021_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241022_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241023_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241024_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241025_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241026_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241027_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241028_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241029_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241030_f18_v02r00.nc, ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G10016_V2/north/daily/2024/seaice_conc_daily_icdr_nh_20241031_f18_v02r00.nc |
| attribute | NC_GLOBAL | sourceUrl | String | (local files) |
| attribute | NC_GLOBAL | spatial_resolution | String | 25km |
| attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v70 |
| attribute | NC_GLOBAL | summary | String | This data set provides a passive microwave sea ice concentration climate data record (CDR) based on gridded brightness temperatures (TBs) from the Defense Meteorological Satellite Program (DMSP) series of passive microwave radiometers: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager/Sounder (SSMIS). The sea ice concentration CDR is an estimate of sea ice concentration that is produced by combining concentration estimates from two algorithms developed at the NASA Goddard Space Flight Center (GSFC): the NASA Team algorithm and the Bootstrap algorithm. The individual algorithms are used to process and combine brightness temperature data at National Snow and Ice Data Center (NSIDC). This product is designed to provide a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) from November 1978 to the present which spans the coverage of several passive microwave instruments. The data are gridded on the NSIDC polar stereographic grid with 25 x 25 km grid cells, and are available in Network Common Data Format (NetCDF) file format. Each file contains a variable with the CDR concentration values as well as variables that hold the NASA Team and Bootstrap processed concentrations for reference Variables containing standard deviation, quality flags, and projection information are also included. Data are available from NSIDC via FTP see https://nsidc.org/data/G10016/versions/2/. Data are also distributed via the PolarWatch ERDDAP at https://polarwatch.noaa.gov/erddap. Note that the data format available through PolarWatch is slightly different from the NSIDC FTP NetCDF files. The PolarWatch data server stores projection information as global attributes (with the prefix grid_mapping) instead of as a variable; and the timestamp is served in different units (seconds since 1970). |
| attribute | NC_GLOBAL | time_coverage_duration | String | P1M |
| attribute | NC_GLOBAL | time_coverage_end | String | 2024-10-01T00:00:00Z |
| attribute | NC_GLOBAL | time_coverage_resolution | String | P1M |
| attribute | NC_GLOBAL | time_coverage_start | String | 2021-01-01T00:00:00Z |
| attribute | NC_GLOBAL | title | String | Sea Ice Concentration, NOAA/NSIDC NRT Climate Data Record V2, Northern Hemisphere, 25km, Near Real-Time, 2021-Present, Monthly |
| dimension | time | double | nValues=46, evenlySpaced=false, averageSpacing=30 days 10h 8m 0s | |
| attribute | time | _ChunkSizes | uint | 1024 |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 1.6094592E9, 1.7277408E9 |
| attribute | time | axis | String | T |
| attribute | time | calendar | String | gregorian |
| attribute | time | ioos_category | String | Time |
| attribute | time | long_name | String | 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 | ygrid | float | nValues=448, evenlySpaced=true, averageSpacing=-25000.0 | |
| attribute | ygrid | _ChunkSizes | uint | 448 |
| attribute | ygrid | actual_range | float | -5337500.0, 5837500.0 |
| attribute | ygrid | axis | String | Y |
| attribute | ygrid | ioos_category | String | Location |
| attribute | ygrid | long_name | String | projection_grid_y_centers |
| attribute | ygrid | source_name | String | ygrid |
| 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 | actual_range | float | -3837500.0, 3737500.0 |
| attribute | xgrid | axis | String | X |
| attribute | xgrid | ioos_category | String | Location |
| attribute | xgrid | long_name | String | projection_grid_x_centers |
| attribute | xgrid | source_name | String | xgrid |
| attribute | xgrid | standard_name | String | projection_x_coordinate |
| attribute | xgrid | units | String | meters |
| attribute | xgrid | valid_range | float | -3850000.0, 3750000.0 |
| variable | cdr_seaice_conc_monthly | float | time, ygrid, xgrid | |
| attribute | cdr_seaice_conc_monthly | _FillValue | float | 2.54 |
| attribute | cdr_seaice_conc_monthly | ancillary_variables | String | stdev_of_cdr_seaice_conc_monthly qa_of_cdr_seaice_conc_monthly |
| attribute | cdr_seaice_conc_monthly | colorBarMaximum | double | 1.0 |
| attribute | cdr_seaice_conc_monthly | colorBarMinimum | double | 0.0 |
| attribute | cdr_seaice_conc_monthly | colorBarPalette | String | KT_ice |
| attribute | cdr_seaice_conc_monthly | datum | String | +ellps=urn:ogc:def:crs:EPSG::4326 |
| attribute | cdr_seaice_conc_monthly | flag_meanings | String | pole_hole lakes coastal land_mask missing_data |
| attribute | cdr_seaice_conc_monthly | flag_values | ubyte | 251, 252, 253, 254, 255 |
| attribute | cdr_seaice_conc_monthly | ioos_category | String | Ice Distribution |
| attribute | cdr_seaice_conc_monthly | long_name | String | NOAA/NSIDC Climate Data Record of Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration |
| attribute | cdr_seaice_conc_monthly | references | String | https://nsidc.org/data/G10016/versions/2/ |
| attribute | cdr_seaice_conc_monthly | standard_name | String | sea_ice_area_fraction |
| attribute | cdr_seaice_conc_monthly | units | String | 1 |
| attribute | cdr_seaice_conc_monthly | valid_range | float | 0.0, 1.0 |
| variable | melt_onset_day_cdr_seaice_conc_monthly | ubyte | time, ygrid, xgrid | |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | _FillValue | ubyte | 255 |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | colorBarMaximum | double | 250.0 |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | colorBarMinimum | double | 50.0 |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | datum | String | +ellps=urn:ogc:def:crs:EPSG::4326 |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | ioos_category | String | Ice Distribution |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | long_name | String | Monthly Day of Snow Melt Onset Over Sea Ice |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | missing_value | ubyte | 255 |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | units | String | 1 |
| attribute | melt_onset_day_cdr_seaice_conc_monthly | valid_range | ubyte | 60, 244 |
| variable | nsidc_bt_seaice_conc_monthly | float | time, ygrid, xgrid | |
| attribute | nsidc_bt_seaice_conc_monthly | _FillValue | float | 2.54 |
| attribute | nsidc_bt_seaice_conc_monthly | colorBarMaximum | double | 1.0 |
| attribute | nsidc_bt_seaice_conc_monthly | colorBarMinimum | double | 0.0 |
| attribute | nsidc_bt_seaice_conc_monthly | colorBarPalette | String | KT_ice |
| attribute | nsidc_bt_seaice_conc_monthly | datum | String | +ellps=urn:ogc:def:crs:EPSG::4326 |
| attribute | nsidc_bt_seaice_conc_monthly | flag_meanings | String | pole_hole unused coastal land_mask missing_data |
| attribute | nsidc_bt_seaice_conc_monthly | flag_values | ubyte | 251, 252, 253, 254, 255 |
| attribute | nsidc_bt_seaice_conc_monthly | ioos_category | String | Ice Distribution |
| attribute | nsidc_bt_seaice_conc_monthly | long_name | String | Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by Bootstrap algorithm processed by NSIDC |
| attribute | nsidc_bt_seaice_conc_monthly | standard_name | String | sea_ice_area_fraction |
| attribute | nsidc_bt_seaice_conc_monthly | units | String | 1 |
| attribute | nsidc_bt_seaice_conc_monthly | valid_range | float | 0.0, 1.0 |
| variable | nsidc_nt_seaice_conc_monthly | float | time, ygrid, xgrid | |
| attribute | nsidc_nt_seaice_conc_monthly | _FillValue | float | 2.54 |
| attribute | nsidc_nt_seaice_conc_monthly | colorBarMaximum | double | 1.0 |
| attribute | nsidc_nt_seaice_conc_monthly | colorBarMinimum | double | 0.0 |
| attribute | nsidc_nt_seaice_conc_monthly | colorBarPalette | String | KT_ice |
| attribute | nsidc_nt_seaice_conc_monthly | datum | String | +ellps=urn:ogc:def:crs:EPSG::4326 |
| attribute | nsidc_nt_seaice_conc_monthly | flag_meanings | String | pole_hole unused coastal land_mask missing_data |
| attribute | nsidc_nt_seaice_conc_monthly | flag_values | ubyte | 251, 252, 253, 254, 255 |
| attribute | nsidc_nt_seaice_conc_monthly | ioos_category | String | Ice Distribution |
| attribute | nsidc_nt_seaice_conc_monthly | long_name | String | Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration by NASA Team algorithm processed by NSIDC |
| attribute | nsidc_nt_seaice_conc_monthly | standard_name | String | sea_ice_area_fraction |
| attribute | nsidc_nt_seaice_conc_monthly | units | String | 1 |
| attribute | nsidc_nt_seaice_conc_monthly | valid_range | float | 0.0, 1.0 |
| variable | qa_of_cdr_seaice_conc_monthly | ubyte | time, ygrid, xgrid | |
| attribute | qa_of_cdr_seaice_conc_monthly | _FillValue | ubyte | 0 |
| attribute | qa_of_cdr_seaice_conc_monthly | colorBarMaximum | double | 128.0 |
| attribute | qa_of_cdr_seaice_conc_monthly | colorBarMinimum | double | 0.0 |
| attribute | qa_of_cdr_seaice_conc_monthly | colorBarPalette | String | Rainbow |
| attribute | qa_of_cdr_seaice_conc_monthly | datum | String | +ellps=urn:ogc:def:crs:EPSG::4326 |
| attribute | qa_of_cdr_seaice_conc_monthly | flag_masks | long | 1, 2, 4, 8, 32, 64, 128 |
| attribute | qa_of_cdr_seaice_conc_monthly | flag_meanings | String | Average_concentration_exceeds_0.15 Average_concentration_exceeds_0.30 At_least_half_the_days_have_sea_ice_conc_exceeds_0.15 At_least_half_the_days_have_sea_ice_conc_exceeds_0.30 Region_masked_by_ocean_climatology At_least_one_day_during_month_has_spatial_interpolation At_least_one_day_during_month_has_temporal_interpolation At_least_one_day_during_month_has_melt_detected |
| attribute | qa_of_cdr_seaice_conc_monthly | ioos_category | String | Quality |
| attribute | qa_of_cdr_seaice_conc_monthly | long_name | String | Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration QC flags |
| attribute | qa_of_cdr_seaice_conc_monthly | missing_value | ubyte | 0 |
| attribute | qa_of_cdr_seaice_conc_monthly | standard_name | String | sea_ice_area_fraction status_flag |
| attribute | qa_of_cdr_seaice_conc_monthly | valid_range | ubyte | 1, 255 |
| variable | stdev_of_cdr_seaice_conc_monthly | float | time, ygrid, xgrid | |
| attribute | stdev_of_cdr_seaice_conc_monthly | _FillValue | float | -1.0 |
| attribute | stdev_of_cdr_seaice_conc_monthly | colorBarMaximum | double | 5.0 |
| attribute | stdev_of_cdr_seaice_conc_monthly | colorBarMinimum | double | 0.0 |
| attribute | stdev_of_cdr_seaice_conc_monthly | colorBarPalette | String | Rainbow |
| attribute | stdev_of_cdr_seaice_conc_monthly | datum | String | +ellps=urn:ogc:def:crs:EPSG::4326 |
| attribute | stdev_of_cdr_seaice_conc_monthly | ioos_category | String | Statistics |
| attribute | stdev_of_cdr_seaice_conc_monthly | long_name | String | Passive Microwave Monthly Northern Hemisphere Sea Ice Concentration Source Estimated Standard Deviation |
| attribute | stdev_of_cdr_seaice_conc_monthly | missing_value | float | -1.0 |
| attribute | stdev_of_cdr_seaice_conc_monthly | valid_range | float | 0.0, 1.0 |
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.