2026-06-06T13:30:04Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/NSIDC-0046.0042026-05-21T18:43:36Zv0_daacv0_allnasa_nsidc_daac
NSIDC-0046.004Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice ExtentBrodzik, M. J. & Armstrong, R.Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent2013-01-31Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center4false10.5067/P7O0HGJLYUQUhttps://nsidc.org/sites/default/files/nsidc-0046-v004-userguide_1.pdfNSIDC-0046Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESEA ICE EARTH SCIENCECRYOSPHERESNOW/ICESNOW COVER Climatology/Meteorology/AtmosphereOceansArcticDAACEASE-Grid 2.0EASE-Grid-projectEASE-Grid Snow & Sea Ice-projectEOSDISGlobalGlobal ChangeGridded DataIceNASANorthern HemisphereNSIDCRemote SensingSea IceSea Ice ExtentSea Ice PM Other-projectSMMRSMMR and SSM/I-SSMIS-projectsmmr-ssmi-projectSMMR/SSMIS EASE Snow&Ice-projectSnowSnow CoverSnow ExtentSSM/ISMMRScanning Multichannel Microwave RadiometerSSM/ISpecial Sensor Microwave/ImagerSSMISSpecial Sensor Microwave Imager/SounderVASVISSR Atmospheric SounderDMSPDefense Meteorological Satellite ProgramDMSP 5D-2/F11Defense Meteorological Satellite Program-F11DMSP 5D-2/F13Defense Meteorological Satellite Program-F13DMSP 5D-2/F8Defense Meteorological Satellite Program-F8DMSP 5D-3/F17Defense Meteorological Satellite Program-F17GOESNOAA Geostationary Operational Environmental SatellitesGOES-7Geostationary Operational Environmental Satellite 7Nimbus-7Nimbus-71966-10-032023-01-011978-10-232023-01-01complete090-180180GEOGRAPHIC REGIONNORTHERN HEMISPHERE25 km25 km7 dayNSIDC observed and manually inspected selected files in this data set, and performed spot checks against the original hand-drawn NOAA/NESDIS snow charts and the original sea ice data. Please see the Quality Control Summary for more information about quality control procedures at NSIDC.These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA ESDIS Data Use Guidance, see https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance.EnglishNASA NSIDC DAACNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAHTTPSBinaryThe main parameters for this data set are snow cover and sea ice extent; both parameters are derived from SMMR and DMSP-F8, -F11, -F13, and -F17 SSM/I and SSMIS brightness temperature data. These data are provided on the Northern Hemisphere EASE-Grid 2.0 projection and at a grid cell size of 25 x 25 km. This product is designed to provide a consistent weekly time series of snow cover from October 1966 through January 2023 and sea ice from October 1978 through January 2023.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/nsidc-0046-v004-userguide_1.pdfNorthern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 User GuideGET DATAhttps://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0046_weekly_snow_seaice/HTTPSUSA/NASACEOS IDN DIFVERSION 9.92013-01-312026-05-21NSIDCVersion SummaryThe projection changed to EASE-Grid 2.0, 720 x 720, at 25.000000 km. Sensor change over dates: SMMR to SSM/I: 1987-07-03; SSM/I F08 to F11: 1991-12-09; SSM/I F11 to F13: 1995-05-08; SSM/I F13 to SSMIS F17: 2008-01-01.
EASE-Grid Land Mask Source: Same as Version 3.1, regridded to EASE-Grid 2.0 (Brodzik et al. 2012). Sea Ice data set used: 1978-10-23 to present: Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data (NSIDC-0051).NSIDCMinor Version1The input data to this data set, Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, NSIDC-0051, was updated causing a minor update, 4.1, to this data set. The temporal coverage for this data set was also updated to 31 December 2020.1978-10-232021-12-310NSIDCCurrent Version1NSIDCSpatial Reference SystemsEPSG:6931WGS 84 / NSIDC EASE-Grid 2.0 NorthNSIDCLevel of ServiceComprehensiveNSIDCFull Dataset CitationBrodzik, M. J. & Armstrong, R. (2013). <i>Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent</i>. (NSIDC-0046, Version 4). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/P7O0HGJLYUQU">https://doi.org/10.5067/P7O0HGJLYUQU</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredfalseNSIDCRelated Servicesapplication/vnd.nasa.cmr.umm+jsonfalseamyygillilandmmt_service_12717S1977897447-NSIDCV0NSIDCV06service2025-04-01T22:12:52.112Zhttps://daacdata.apps.nsidc.org/NSIDCV0_DAAC_Data_HTTPS_File_SystemNOT PROVIDED1HTTPS File SystemQuickly download a few files using a web browser, or access the data through a command-line utility such as WGET.https://nsidc.org/data/user-resources/help-center/programmatic-access-guide-data-daacdataappsVIEW RELATED INFORMATIONProgrammatic Data Access GuidePublicationURLUSER SERVICESNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESThis is the most current release of this service.DEVELOPERORIGINATORPUBLISHERSERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive CenterNASA NSIDC DAACNASA Distributed Active Archive Center (DAAC) at NSIDChttps://nsidc.org/daacNSIDC DAAC Home Pagehttps://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0046_weekly_snow_seaice/NSIDCRelated Toolsapplication/vnd.nasa.cmr.umm+jsonfalsecrumlydease_toolsTL3915895804-NSIDC_CPRDNSIDC_CPRD1tool2025-12-16T18:38:49.912ZDOWNLOAD SOFTWAREhttps://github.com/nsidc/easegrids-easeconvDistributionURLNSIDC_CPRD_EASE_ToolsDownloadable Tool0.3 EASE-Grid Data Geolocation ToolsGeolocate and display EASE-Grid and EASE-Grid 2.0 data sets with IDL software.https://nsidc.org/support/faq/does-nsidc-have-tools-geolocating-and-displaying-ease-grid-data-setsVIEW RELATED INFORMATIONDoes NSIDC have tools for geolocating and displaying EASE-Grid data sets?PublicationURLDATA ANALYSISDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDEVELOPERNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daac/NASA NSIDC DAAC2013-12-18T00:00:00.000ZThis is the most current release of this tool.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0IDLhttps://github.com/nsidc/easegrids-easeconv