<?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>2026-08-28T16:57:43Z</responseDate><request identifier="G02129.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/G02129.001</identifier><datestamp>2025-12-03T15:17:20Z</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>G02129.001</Entry_ID><Entry_Title>Southern Hemisphere Ice Limits, 1973-1978</Entry_Title><Data_Set_Citation><Dataset_Creator>Hasselmann, K., Lemke, P. &amp; Trinkl, E. W.</Dataset_Creator><Dataset_Title>Southern Hemisphere Ice Limits, 1973-1978</Dataset_Title><Dataset_Release_Date>2003-07-25</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/N53R0QRR</Dataset_DOI><Online_Resource>https://doi.org/10.7265/N53R0QRR</Online_Resource><Dataset_Series_Name>G02129</Dataset_Series_Name></Data_Set_Citation><Personnel><Role>Investigator</Role><First_Name>P.</First_Name><Last_Name>Lemke</Last_Name><Contact_Address><Address>Max Plank Institute fur Meteorologie</Address><Address>Bundesstrasse 55 W/2000 Hamburg</Address><Address>13 Deutschland</Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>E.</First_Name><Middle_Name>W.</Middle_Name><Last_Name>Trinkl</Last_Name><Contact_Address><Address>Max Plank Institute fur Meteorologie</Address><Address>Bundesstrasse 55 W/2000 Hamburg</Address><Address>13 Deutschland</Address><Country/></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Klaus</First_Name><Last_Name>Hasselmann</Last_Name><Phone>1- (040) 41173-0</Phone><Fax>1- (040) 41173-298</Fax><Contact_Address><Address>Max Plank Institute fur Meteorologie</Address><Address>Bundesstrasse 55 W/2000 Hamburg</Address><Address>13 Deutschland</Address><Country/></Contact_Address></Personnel><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>Oceans</Topic><Term>Sea Ice</Term><Variable_Level_1>Ice Extent</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable>ICE EXTENT</Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>Terrestrial Hydrosphere</Topic><Term>Snow/Ice</Term><Variable_Level_1>Ice Extent</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable>ICE EXTENT</Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>Cryosphere</Topic><Term>Snow/Ice</Term><Variable_Level_1>Ice Extent</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable>ICE EXTENT</Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>Cryosphere</Topic><Term>Sea Ice</Term><Variable_Level_1>Ice Extent</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable>ICE EXTENT</Detailed_Variable></Parameters><ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category><ISO_Topic_Category>Oceans</ISO_Topic_Category><Keyword>Antarctic</Keyword><Keyword>Global Change</Keyword><Keyword>Sea Ice Extent</Keyword><Keyword>Sea Ice Observations and Charts-project</Keyword><Temporal_Coverage><Start_Date>1973-01-01</Start_Date><Stop_Date>1978-06-30</Stop_Date></Temporal_Coverage><Data_Set_Progress>complete</Data_Set_Progress><Spatial_Coverage><Southernmost_Latitude>-90</Southernmost_Latitude><Northernmost_Latitude>-50</Northernmost_Latitude><Westernmost_Longitude>-180</Westernmost_Longitude><Easternmost_Longitude>180</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>Continent</Location_Category><Location_Type>Antarctica</Location_Type><Location_Subregion1/><Location_Subregion2/><Location_Subregion3/><Detailed_Location/></Location><Location><Location_Category>Geographic Region</Location_Category><Location_Type>Southern Hemisphere</Location_Type><Location_Subregion1/><Location_Subregion2/><Location_Subregion3/><Detailed_Location/></Location><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>3 MB</Distribution_Size><Distribution_Format>ASCII</Distribution_Format></Distribution><Reference>
Lemke,P., E.W. Trinkl and K. Hasselmann, Stochastic dynamic analysis
of polar sea ice variability, J. Phys. Oceanog., 10(12), 2100-2120,
1980.
</Reference><Summary><Abstract>Weekly Southern Ocean ice limits, have been digitized from U.S. Navy Fleet Weather Facility ice charts, at the Max-Planck Institut fur Meteorologie, Hamburg. Coverage is from 1 January 1973 to 31 June 1978. Data are gridded at 5 degree longitude intervals and are available via ftp.

&lt;strong&gt;Note:&lt;/strong&gt; NOAA@NSIDC believes these data to be of value, however, they should be used with caution because we are unable to quality check the data or provide documentation due to lack of funding. If you have any information about this data set that others would find useful, please contact &lt;a href="mailto:nsidc@nsidc.org"&gt;NSIDC User Services&lt;/a&gt;.</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>https://doi.org/10.7265/N53R0QRR</URL><Description>User's Guide</Description></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>https://noaadata.apps.nsidc.org/NOAA/G02129/</URL><Description>HTTPS</Description></Related_URL><Related_URL><URL_Content_Type><Type>PROJECT HOME PAGE</Type></URL_Content_Type><URL>http://nsidc.org/data/seaice/</URL><Description>Sea Ice Products at NSIDC</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>2003-07-25</DIF_Creation_Date><Last_DIF_Revision_Date>2025-12-03</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>Basic</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>Hasselmann, K., Lemke, P. &amp; Trinkl, E. W. (2003). &lt;i&gt;Southern Hemisphere Ice Limits, 1973-1978&lt;/i&gt;. (G02129, Version 1). [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. &lt;a href="https://doi.org/10.7265/N53R0QRR"&gt;https://doi.org/10.7265/N53R0QRR&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><Metadata><Group>NSIDC</Group><Name>Related Services</Name><Value><umm-s><meta><format>application/vnd.nasa.cmr.umm+json</format><deleted>false</deleted><user-id>jroebuck</user-id><native-id>mmt_service_32962</native-id><concept-id>S2721063021-NSIDCV0</concept-id><provider-id>NSIDCV0</provider-id><revision-id>1</revision-id><concept-type>service</concept-type><revision-date>2023-06-27T14:22:11.750Z</revision-date></meta><umm><URL><URLValue>https://noaadata.apps.nsidc.org/</URLValue></URL><Name>NSIDCV0_NOAA_Data_HTTPS_File_System</Name><Type>NOT PROVIDED</Type><Version>1</Version><LongName>NOAA@NSIDC HTTPS File System</LongName><Description>Access and download NOAA@NSIDC data using a web browser, or through a command line utility such as WGET, or using programming languages such as R or Python.</Description><RelatedURLs><RelatedURL><URL>https://nsidc.org/data/user-resources/help-center/how-access-and-download-noaansidc-data</URL><Type>VIEW RELATED INFORMATION</Type><Description>NOAA@NSIDC HTTPS Access Guide</Description><URLContentType>PublicationURL</URLContentType></RelatedURL></RelatedURLs><ContactGroups><ContactGroup><Roles><Role>USER SERVICES</Role></Roles><GroupName>NSIDC User Services</GroupName><ContactInformation><ContactMechanisms><ContactMechanism><Type>Email</Type><Value>nsidc@nsidc.org</Value></ContactMechanism></ContactMechanisms></ContactInformation></ContactGroup></ContactGroups><ServiceKeywords><ServiceKeyword><ServiceTerm>DATA ACCESS/RETRIEVAL</ServiceTerm><ServiceTopic>DATA MANAGEMENT/DATA HANDLING</ServiceTopic><ServiceCategory>EARTH SCIENCE SERVICES</ServiceCategory></ServiceKeyword></ServiceKeywords><VersionDescription>This is the most current release of this service.</VersionDescription><ServiceOrganizations><ServiceOrganization><Roles><Role>AUTHOR</Role><Role>DEVELOPER</Role><Role>PUBLISHER</Role><Role>SERVICE PROVIDER</Role></Roles><LongName>National Oceanic and Atmospheric Administration at the National Snow and Ice Data Center</LongName><ShortName>NSIDC_NOAA</ShortName></ServiceOrganization></ServiceOrganizations><MetadataSpecification><URL>https://cdn.earthdata.nasa.gov/umm/service/v1.4</URL><Name>UMM-S</Name><Version>1.4</Version></MetadataSpecification></umm></umm-s><nsidc><URLValue>https://noaadata.apps.nsidc.org/NOAA/G02129/</URLValue></nsidc></Value></Metadata></Extended_Metadata></DIF>
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