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  <Entry_ID>G02169</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. and C. Dick. </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>
    <Online_Resource>http://nsidc.org/data/g02169.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N59884X1</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Dmitry</First_Name>
    <Middle_Name>V</Middle_Name>
    <Last_Name>Divine</Last_Name>
    <Contact_Address>
      <Address>Norwegian Polar Institute</Address>
      <City>Tromsø</City>
      <Country>Norway</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Chad</First_Name>
    <Last_Name>Dick</Last_Name>
    <Contact_Address>
      <Address>Norwegian Polar Institute</Address>
      <Address>CliC International Project Office</Address>
      <City>Tromsø</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 x</Phone>
    <Fax>1 303  492-2468 x</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>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Sea Ice</Term>
    <Variable_Level_1>Ice Edges</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Oceans</Topic>
    <Term>Sea Ice</Term>
    <Variable_Level_1>Ice Edges</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <ISO_Topic_Category>Oceans</ISO_Topic_Category>
  <Keyword>NOAA</Keyword>
  <Keyword>Nordic Seas</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>
  </Source_Name>
  <Source_Name>
    <Short_Name>SATELLITES</Short_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>SHIPS</Short_Name>
  </Source_Name>
  <Temporal_Coverage>
    <Start_Date>1750-01-01</Start_Date>
    <Stop_Date>2002-12-31</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>GEOGRAPHIC REGION</Location_Category>
    <Location_Type>ARCTIC</Location_Type>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>ARCTIC OCEAN</Location_Type>
    <Location_Subregion1>BARENTS SEA</Location_Subregion1>
  </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>
  <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>
  <Data_Set_Language>English</Data_Set_Language>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>NSIDC</Short_Name>
      <Long_Name>National Snow and Ice Data Center</Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>http://nsidc.org</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>
      <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>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>NSIDC_NOAA</Short_Name>
      <Long_Name>NSIDC 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>NSIDC 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>ASCII Text</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>0.03 - 61.1 KB</Distribution_Size>
    <Distribution_Format>ESRI Shapefiles</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>0.03 - 61.1 KB</Distribution_Size>
    <Distribution_Format>JPEG</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>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% ice concentration. Data are derived from publicly available sea ice products and use observational data from ship logbooks, diaries and other sources in addition to more recent satellite data products from the Scanning Multichannel Microwave Radiometer (SMMR) and the Special Sensor Microwave Imager (SSM/I). The data are distributed via FTP in ASCII, JPEG, and shapefile format.</Summary>
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    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://www.docstoc.com/docs/43976290/ACSYS-HISTORICAL-ICE-CHART-ARCHIVE</URL>
    <Description>ACSYS Historical Ice Chart Archive (1553-2002)</Description>
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    <Description>DMSP SSM/I Daily Polar Gridded Sea Ice Concentrations, June to September 2001</Description>
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    </URL_Content_Type>
    <URL>http://nsidc.org/data/g02140</URL>
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    <URL>http://nsidc.org/data/g02172.html</URL>
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  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2007-01-01</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-12</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI to metadata record</DIF_Revision_History>
</DIF>
