2026-10-10T14:55:58Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/G00486.0012026-09-15T18:16:19Zv0_otherv0_allnoaa
G00486.001Great Lakes Ice ChartsNational Snow & Ice Data CenterGreat Lakes Ice Charts2004-05-13Boulder, Colorado USANSIDC: National Snow and Ice Data Center1false10.7265/N5H41PBVhttps://dx.doi.org/10.7265/N5H41PBVG00486Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESNOW/ICEICE EXTENT EARTH SCIENCECRYOSPHERESNOW/ICELAKE ICE EARTH SCIENCECRYOSPHERESNOW/ICERIVER ICE Climatology/Meteorology/AtmosphereInland WatersClimatologyFreshwater IceICE CHARTSIce NavigationIDN_NODE GSFC/NSIDCLake IceNOAANSIDCRiver IceVISUAL OBSERVATIONSGROUND-BASED OBSERVATIONSGROUND-BASED OBSERVATIONS1973-12-012002-05-094149-93-79ContinentNorth AmericaGeographic RegionMid-latitudeContinentNorth AmericaUnited States Of AmericaContinentNorth AmericaUnited States Of AmericaGreat LakesGreat LakesVaries2 dayThese data are freely, openly, and fully accessible without restrictions.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/use_copyright.html.EnglishNOAANational Oceanic and Atmospheric Administrationhttp://nsidc.org/noaa/Data Center ContactNOAAUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAFTP460 MBGIFThese charts show ice extent and concentration three times weekly during the ice season, for all lakes except Ontario, from the 1973/74 ice season through the 2001/2002 ice season. Most charts are annotated to indicate data sources. The Straits of Mackinac, Green Bay, and Sault Ste. Marie are enlarged as insets; and in some cases, provided as separate charts. From 1973/74 through 1986/87, charts were prepared by the National Weather Service Forecast Office in Ann Arbor, Michigan. Beginning with the 1987/88 season, the National Ice Center (formerly known as the Navy/NOAA Joint Ice Center) in Suitland, Maryland prepared the charts. Charts are available as GIF files.VIEW RELATED INFORMATIONhttps://dx.doi.org/10.7265/N5H41PBVDocumentationGET DATAhttps://noaadata.apps.nsidc.org/NOAA/G00486/HTTPSUSA/NOAACEOS IDN DIFVERSION 9.92004-05-132026-09-15NSIDCVersion SummaryNSIDCMinor VersionNSIDCCurrent Version1NSIDCLevel of ServiceBasicNSIDCFull Dataset CitationNational Snow & Ice Data Center. (2004). <i>Great Lakes Ice Charts</i>. (G00486, Version 1). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. <a href="https://doi.org/10.7265/N5H41PBV">https://doi.org/10.7265/N5H41PBV</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredfalse