<?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>2026-06-25T17:14:45Z</responseDate><request identifier="NSIDC-0768.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/NSIDC-0768.001</identifier><datestamp>2025-12-22T21:19:08Z</datestamp><setSpec>v0_daac</setSpec><setSpec>v0_all</setSpec><setSpec>nasa_nsidc_daac</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>NSIDC-0768.001</Entry_ID><Entry_Title>Global Seasonal-Snow Classification</Entry_Title><Data_Set_Citation><Dataset_Creator>Liston, G. E. &amp; Sturm, M.</Dataset_Creator><Dataset_Title>Global Seasonal-Snow Classification</Dataset_Title><Dataset_Release_Date>2021-10-18</Dataset_Release_Date><Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place><Dataset_Publisher>NASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center</Dataset_Publisher><Version>1</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.5067/99FTCYYYLAQ0</Dataset_DOI><Online_Resource>https://nsidc.org/sites/default/files/nsidc-0768-v001-userguide.pdf</Online_Resource><Dataset_Series_Name>NSIDC-0768</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><Personnel><Role>Investigator</Role><First_Name>Glen</First_Name><Middle_Name>E.</Middle_Name><Last_Name>Liston</Last_Name><Email>liston@tachu.atmos.colostate.edu</Email><Phone>1-970-491-7473</Phone><Contact_Address><Address>Department of Atmospheric Science</Address><Address>Colorado State University</Address><City>Fort Collins</City><Province_or_State>CO</Province_or_State><Postal_Code>80523</Postal_Code><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Matthew</First_Name><Last_Name>Sturm</Last_Name><Email>msturm@crrel.usace.army.mil</Email><Phone>1-907-353-5183</Phone><Fax>1-907-353-5142</Fax><Contact_Address><Address>USA-CRREL-Alaska</Address><Address>P.O. Box 35170</Address><City>Ft. Wainwright</City><Province_or_State>AK</Province_or_State><Postal_Code>99703-0170</Postal_Code><Country/></Contact_Address></Personnel><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>SNOW/ICE</Term><Variable_Level_1>SNOW CLASSIFICATION</Variable_Level_1><Variable_Level_2> </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>Imagery/Base Maps/Earth Cover</ISO_Topic_Category><Keyword>SnowEx-related</Keyword><Sensor_Name><Short_Name>NOT APPLICABLE</Short_Name></Sensor_Name><Sensor_Name><Short_Name>RAIN GAUGES</Short_Name><Long_Name>RAIN GAUGES</Long_Name></Sensor_Name><Sensor_Name><Short_Name>THERMOMETERS</Short_Name><Long_Name>THERMOMETERS</Long_Name></Sensor_Name><Source_Name><Short_Name>MODELS</Short_Name><Long_Name>MODELS</Long_Name></Source_Name><Source_Name><Short_Name>WEATHER STATIONS</Short_Name><Long_Name>WEATHER STATIONS</Long_Name></Source_Name><Temporal_Coverage><Start_Date>1981-01-01</Start_Date><Stop_Date>2019-12-31</Stop_Date></Temporal_Coverage><Data_Set_Progress>complete</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>-90</Southernmost_Latitude><Northernmost_Latitude>90</Northernmost_Latitude><Westernmost_Longitude>-180</Westernmost_Longitude><Easternmost_Longitude>180</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>GEOGRAPHIC REGION</Location_Category><Location_Type>GLOBAL LAND</Location_Type></Location><Data_Resolution><Latitude_Resolution>10 arcsec</Latitude_Resolution><Longitude_Resolution>10 arcsec</Longitude_Resolution><Temporal_Resolution>39 year</Temporal_Resolution></Data_Resolution><Data_Resolution><Latitude_Resolution>30 arcsec</Latitude_Resolution><Longitude_Resolution>30 arcsec</Longitude_Resolution><Temporal_Resolution>39 year</Temporal_Resolution></Data_Resolution><Data_Resolution><Latitude_Resolution>2.5 arcmin</Latitude_Resolution><Longitude_Resolution>2.5 arcmin</Longitude_Resolution><Temporal_Resolution>39 year</Temporal_Resolution></Data_Resolution><Data_Resolution><Latitude_Resolution>0.5&#xB0;</Latitude_Resolution><Longitude_Resolution>0.5&#xB0;</Longitude_Resolution><Temporal_Resolution>39 year</Temporal_Resolution></Data_Resolution><Access_Constraints>These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).</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/data-use-and-copyright. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.</Use_Constraints><Data_Set_Language>English</Data_Set_Language><Originating_Center>COLOSTATE/CIRA</Originating_Center><Data_Center><Data_Center_Name><Short_Name>NASA NSIDC DAAC</Short_Name><Long_Name>NASA National Snow and Ice Data Center Distributed Active Archive Center</Long_Name></Data_Center_Name><Data_Center_URL>https://nsidc.org/daac</Data_Center_URL><Personnel><Role>Data Center Contact</Role><First_Name>NSIDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><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>HTTPS</Distribution_Media><Distribution_Format>ASCII</Distribution_Format></Distribution><Distribution><Distribution_Media>HTTPS</Distribution_Media><Distribution_Format>netCDF-4</Distribution_Format></Distribution><Distribution><Distribution_Media>HTTPS</Distribution_Media><Distribution_Format>GeoTIFF</Distribution_Format></Distribution><Reference/><Summary><Abstract>This data set consists of global, seasonal snow classifications&#x2014;e.g., tundra, boreal forest, maritime, ephemeral, prairie, montane forest, and ice&#x2014;determined from air temperature, precipitation, and wind speed climatologies. Data are available on global, North America, and Eurasia latitude-longitude grids at four resolutions: 10 arcsec (~300 m), 30 arcsec (~1 km), 2.5 arcmin (~5 km), and 0.5&#xB0; (~50 km).</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>https://nsidc.org/sites/default/files/nsidc-0768-v001-userguide.pdf</URL><Description>Global Seasonal-Snow Classification, Version 1 User Guide</Description></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0768_global_seasonal_snow_classification_v01</URL><Description>HTTPS</Description></Related_URL><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>2021-10-18</DIF_Creation_Date><Last_DIF_Revision_Date>2025-12-22</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value>Initial release.</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>Spatial Reference Systems</Name><Value><Spatial_Reference_System><SRID>EPSG:4326</SRID><Description>WGS 84</Description></Spatial_Reference_System></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>Liston, G. 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