<?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>2026-08-27T02:29:01Z</responseDate><request identifier="G02169.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/G02169.001</identifier><datestamp>2025-10-07T16:37:28Z</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>G02169.001</Entry_ID><Entry_Title>March through August Ice Edge Positions in the Nordic Seas, 1750-2002</Entry_Title><Data_Set_Citation><Dataset_Creator>Divine, D. V. &amp; Dick, C.</Dataset_Creator><Dataset_Title>March through August Ice Edge Positions in the Nordic Seas, 1750-2002</Dataset_Title><Dataset_Release_Date>2007-01-01</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/N59884X1</Dataset_DOI><Online_Resource>http://dx.doi.org/10.7265/N59884X1</Online_Resource><Dataset_Series_Name>G02169</Dataset_Series_Name></Data_Set_Citation><Personnel><Role>Investigator</Role><First_Name>Dmitry</First_Name><Middle_Name>V</Middle_Name><Last_Name>Divine</Last_Name><Contact_Address><City>Troms&#xF8;</City><Country>Norway</Country></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Chad</First_Name><Last_Name>Dick</Last_Name><Contact_Address><City>Troms&#xF8;</City><Country>Norway</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 Edges</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable>ICE EDGES</Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>Cryosphere</Topic><Term>Sea Ice</Term><Variable_Level_1>Ice Edges</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable>ICE EDGES</Detailed_Variable></Parameters><ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category><ISO_Topic_Category>Oceans</ISO_Topic_Category><Keyword>NOAA</Keyword><Keyword>Nordic Seas</Keyword><Keyword>Sea Ice Observations and Charts-project</Keyword><Sensor_Name><Short_Name>SMMR</Short_Name><Long_Name>Scanning Multichannel Microwave Radiometer</Long_Name></Sensor_Name><Sensor_Name><Short_Name>SSM/I</Short_Name><Long_Name>Special Sensor Microwave/Imager</Long_Name></Sensor_Name><Sensor_Name><Short_Name>VISUAL OBSERVATIONS</Short_Name></Sensor_Name><Source_Name><Short_Name>DMSP</Short_Name><Long_Name>Defense Meteorological Satellite Program</Long_Name></Source_Name><Source_Name><Short_Name>Nimbus-7</Short_Name><Long_Name>Nimbus-7</Long_Name></Source_Name><Source_Name><Short_Name>SHIPS</Short_Name></Source_Name><Temporal_Coverage><Start_Date>1750-03-01</Start_Date><Stop_Date>2002-08-31</Stop_Date></Temporal_Coverage><Spatial_Coverage><Southernmost_Latitude>57.7</Southernmost_Latitude><Northernmost_Latitude>86</Northernmost_Latitude><Westernmost_Longitude>-36.2</Westernmost_Longitude><Easternmost_Longitude>64.2</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>Ocean</Location_Category><Location_Type>Arctic Ocean</Location_Type><Location_Subregion1>Barents Sea</Location_Subregion1><Location_Subregion2/><Location_Subregion3/></Location><Location><Location_Category>Ocean</Location_Category><Location_Type>Atlantic Ocean</Location_Type><Location_Subregion1>North Atlantic Ocean</Location_Subregion1><Location_Subregion2>Norwegian Sea</Location_Subregion2><Location_Subregion3/></Location><Location><Location_Category>Geographic Region</Location_Category><Location_Type>Arctic</Location_Type><Location_Subregion1/><Location_Subregion2/><Location_Subregion3/></Location><Data_Resolution><Longitude_Resolution>Varies</Longitude_Resolution><Temporal_Resolution>Varies</Temporal_Resolution></Data_Resolution><Quality>There are some known limitations in the input data collections referenced in Divine and Dick (2006). March through August months were selected since these months contain a high data density. Therefore, the annual cycle of sea ice advance and retreat is not captured. See documentation for limitations by by data collection.</Quality><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>0.03 - 61.1 KB</Distribution_Size><Distribution_Format>JPEG</Distribution_Format></Distribution><Distribution><Distribution_Media>FTP</Distribution_Media><Distribution_Size>0.03 - 61.1 KB</Distribution_Size><Distribution_Format>ASCII</Distribution_Format></Distribution><Distribution><Distribution_Media>FTP</Distribution_Media><Distribution_Size>0.03 - 61.1 KB</Distribution_Size><Distribution_Format>Shapefile</Distribution_Format></Distribution><Reference>Ackley, S., P. Wadhams, J.C. Comiso, and A.P. Worby. 2003. Decadal decrease of Antarctic sea ice extent inferred from whaling records revisited on the basis of historical and modern sea ice records. Polar Research 22(1), 19-25.

Divine, D.V., and C. Dick. 2006. Historical variability of sea ice edge position in the Nordic Seas. J. Geophys. Res. 111, No. C1, C01001, doi: 10.1029/2004JC002851. Polyakov, I., R.V. Bekryaev, G.V. Alekseev, U. Bhatt, R. Colony, M.A. Johnson, A.P. Makshtas, and D. Walsh. 2003. Variability and trends of air temperature and pressure in the maritime Arctic, 1875-2000. J. Climate 16, 2067-2077.

Vinje, T. 2001. Anomalies and trends of sea ice extent and atmospheric circulation in the Nordic Seas during the period 1864-1998. J. Climate 14, 255-267.

Wessel, P., and W. H. F. Smith. 1998. New, improved version of the Generic Mapping Tools Released. EOS Trans. AGU 79, 579.</Reference><Summary><Abstract>This product contains ice edge coordinates for the Nordic Seas from 1750 through 2002 for months March through August. Ice edge in this product is defined as the outer boundary of ice having at least 30 percent ice concentration. 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