<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-17T03:40:55Z</responseDate><request identifier="G00805.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/G00805.001</identifier><datestamp>2026-09-15T18:16:22Z</datestamp><setSpec>v0_other</setSpec><setSpec>v0_all</setSpec><setSpec>noaa</setSpec></header><metadata>
<DIF xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.7.1.xsd"><Entry_ID>G00805.001</Entry_ID><Entry_Title>Great Lakes Surface Ice Reports from U.S. Coast Guard, 1961 - 2004</Entry_Title><Data_Set_Citation><Dataset_Creator>National Snow and Ice Data Center (Comp.)</Dataset_Creator><Dataset_Title>Great Lakes Surface Ice Reports from U.S. Coast Guard, 1961 - 2004</Dataset_Title><Dataset_Release_Date>1995-01-01</Dataset_Release_Date><Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place><Dataset_Publisher>NSIDC: National Snow and Ice Data Center</Dataset_Publisher><Version>1</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.7265/N5BG2KW2</Dataset_DOI><Online_Resource>https://dx.doi.org/10.7265/N5BG2KW2</Online_Resource><Dataset_Series_Name>G00805</Dataset_Series_Name></Data_Set_Citation><Personnel><Role>Technical Contact</Role><First_Name>NSIDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Fax>1-303-492-2468</Fax><Contact_Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>ICE DEPTH/THICKNESS</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>LAKE ICE</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>ATMOSPHERE</Topic><Term>ATMOSPHERIC TEMPERATURE</Term><Variable_Level_1>SURFACE TEMPERATURE</Variable_Level_1><Variable_Level_2>MAXIMUM/MINIMUM TEMPERATURE</Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category><ISO_Topic_Category>Inland Waters</ISO_Topic_Category><Keyword>Climatology</Keyword><Keyword>Freshwater Ice</Keyword><Keyword>Ice Cover</Keyword><Keyword>Ice Navigation</Keyword><Keyword>IDN_NODE GSFC/NSIDC</Keyword><Keyword>Lake Ice</Keyword><Keyword>LAKES</Keyword><Keyword>Seasonal Ice</Keyword><Sensor_Name><Short_Name>VISUAL OBSERVATIONS</Short_Name></Sensor_Name><Source_Name><Short_Name>GROUND STATIONS</Short_Name><Long_Name>GROUND STATIONS</Long_Name></Source_Name><Source_Name><Short_Name>SHIPS</Short_Name></Source_Name><Temporal_Coverage><Start_Date>1961-11-10</Start_Date><Stop_Date>2004-12-31</Stop_Date></Temporal_Coverage><Data_Set_Progress>complete</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>41</Southernmost_Latitude><Northernmost_Latitude>49</Northernmost_Latitude><Westernmost_Longitude>-93</Westernmost_Longitude><Easternmost_Longitude>-76</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>Continent</Location_Category><Location_Type>North America</Location_Type><Location_Subregion1>United States Of America</Location_Subregion1><Location_Subregion2>Great Lakes</Location_Subregion2><Location_Subregion3/><Detailed_Location>Detroit River</Detailed_Location></Location><Location><Location_Category>Continent</Location_Category><Location_Type>North America</Location_Type><Location_Subregion1>United States Of America</Location_Subregion1><Location_Subregion2/><Location_Subregion3/><Detailed_Location/></Location><Location><Location_Category>Geographic Region</Location_Category><Location_Type>Mid-latitude</Location_Type><Location_Subregion1/><Location_Subregion2/><Location_Subregion3/><Detailed_Location/></Location><Location><Location_Category>Continent</Location_Category><Location_Type>North America</Location_Type><Location_Subregion1/><Location_Subregion2/><Location_Subregion3/><Detailed_Location>USA</Detailed_Location></Location><Data_Resolution><Temporal_Resolution>Varies</Temporal_Resolution></Data_Resolution><Access_Constraints>These data are freely, openly, and fully accessible without restrictions.</Access_Constraints><Use_Constraints>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.</Use_Constraints><Data_Set_Language>English</Data_Set_Language><Data_Center><Data_Center_Name><Short_Name>NOAA</Short_Name><Long_Name>National Oceanic and Atmospheric Administration</Long_Name></Data_Center_Name><Data_Center_URL>http://nsidc.org/noaa/</Data_Center_URL><Personnel><Role>Data Center Contact</Role><First_Name>NOAA</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Fax>1-303-492-2468</Fax><Contact_Address><Address>National Snow and Ice Data Center</Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel></Data_Center><Distribution><Distribution_Media>FTP</Distribution_Media><Distribution_Size>5.99 MB</Distribution_Size><Distribution_Format>ASCII</Distribution_Format></Distribution><Reference>Assel, R. A. Great Lakes weekly ice cover statistics. NOAA Technical Memorandum GLERL-133. NOAA, Great Lakes Environmental Research Laboratory, Ann Arbor, MI, 27 pp. (2005). ftp://ftp.glerl.noaa.gov/publications/tech_reports/glerl-133/


 Assel, R. A. Computerized National Weather Service Great Lakes ice reports for winter seasons 1899-1970. NOAA Technical Memorandum GLERL-130. NOAA, Great Lakes Environmental Research Laboratory, Ann Arbor, MI, 31 pp. (2004). ftp://ftp.glerl.noaa.gov/publications/tech_reports/glerl-130/

Assel, R. A. A Laurentian Great Lakes ice cover climatology. Proceedings of the 61st Annual Meeting of the Eastern Snow Conference, Portland, Maine, June 9-11, 2004. 2 pp. (2004). http://www.glerl.noaa.gov/pubs/fulltext/2004/20040027.pdf

Assel, R. A., F. H. Quinn, and C. E. Sellinger. Hydro-climatic factors of the recent drop in Laurentian Great Lakes water levels. Bulletin of the American Meteorological Society 85(8):1143-1151 (2004). http://www.glerl.noaa.gov/pubs/fulltext/2004/20040017.pdf

Assel, R. A., S. Drobot, and T. E. Croley, II. Improving 30-day Great Lakes ice cover outlooks. Journal of Hydrometeorology 5(4):713-717 (2004). http://www.glerl.noaa.gov/pubs/fulltext/2004/20040016.pdf

Assel, R. A., S. Drobot, and T. E. CROLEY, II. Improving monthly Great Lakes ice cover outlooks. NOAA Technical Memorandum GLERL-129. NOAA, Great Lakes Environmental Research Laboratory, Ann Arbor, MI, 22 pp. (2004). ftp://ftp.glerl.noaa.gov/publications/tech_reports/glerl-129/

Assel, R. A. Lake Erie ice cover climatology -- basin averaged ice cover: winters 1898-2002. NOAA Technical Memorandum GLERL-128. NOAA, Great Lakes Environmental Research Laboratory, Ann Arbor, MI, 15 pp. (2004). ftp://ftp.glerl.noaa.gov/publications/tech_reports/glerl-128/

US Coast Guard Ninth District Operation Plan 1 FY Annex X.

Great Lakes Hydrometeorological Station Directory, NOAA data report ERL GLERL-22, Feb. 1983.

US Coast Pilot #6; Great Lakes, April 82, US Department of Commerce, NOAA.</Reference><Summary><Abstract>Data consist of ice observations from U.S. Coast Guard vessels operating on the Great Lakes and from Coast Guard shore stations reported via teletype messages and ice logging forms. Observations include ice thickness and concentration, weather conditions, and ice breaking activity. Data from 1961/1962 through 1966/1967 have been processed to a standard format and sorted by year and stations, and are available via FTP as ASCII files, one for each of the five lakes.</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>https://dx.doi.org/10.7265/N5BG2KW2</URL><Description>Documentation</Description></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>https://noaadata.apps.nsidc.org/NOAA/G00805/</URL><Description>HTTPS</Description></Related_URL><IDN_Node><Short_Name>USA/NOAA</Short_Name></IDN_Node><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>1995-01-01</DIF_Creation_Date><Last_DIF_Revision_Date>2026-09-15</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value/></Metadata><Metadata><Group>NSIDC</Group><Name>Minor Version</Name><Value/></Metadata><Metadata><Group>NSIDC</Group><Name>Current Version</Name><Value>1</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Level of Service</Name><Value><Level>Standard</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>(1995). &lt;i&gt;Great Lakes Surface Ice Reports from U.S. Coast Guard, 1961 - 2004&lt;/i&gt;. (G00805, Version 1). National Snow and Ice Data Center (Comp.) [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. &lt;a href="https://doi.org/10.7265/N5BG2KW2"&gt;https://doi.org/10.7265/N5BG2KW2&lt;/a&gt;. [&lt;i&gt;&lt;describe subset used if applicable&gt;&lt;/i&gt;].</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Retired</Name><Value>false</Value></Metadata></Extended_Metadata></DIF>
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