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<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>G02186</Entry_ID>
  <Entry_Title>Multisensor Analyzed Sea Ice Extent  - Northern Hemisphere (MASIE-NH)</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>National Ice Center and  NSIDC.  Compiled by F. Fetterer, M. Savoie, S. Helfrich, and P. Clemente-Colón. </Dataset_Creator>
    <Dataset_Title>Multisensor Analyzed Sea Ice Extent  - Northern Hemisphere (MASIE-NH)</Dataset_Title>
    <Dataset_Release_Date>2010-12-14</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/g02186.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5GT5K3K</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Florence</First_Name>
    <Last_Name>Fetterer</Last_Name>
    <Email>fetterer@nsidc.org</Email>
    <Contact_Address>
      <Address>National Snow and Ice Data Center</Address>
      <City>Boulder</City>
      <Province_or_State>CO</Province_or_State>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Pablo</First_Name>
    <Last_Name>Clemente-Colón</Last_Name>
    <Email>Pablo.Clemente-Colon@natice.noaa.gov</Email>
    <Phone>1 301 394-3100 </Phone>
    <Contact_Address>
      <Address>National/Naval Ice Center</Address>
      <Address>NOAA Satellite Operations Facility (NSOF)</Address>
      <Address>4251 Suitland Road</Address>
      <Address>Washington, D.C. 20395</Address>
      <City>Washington, D.C.</City>
      <Postal_Code>20395</Postal_Code>
      <Country>USA</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>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Matthew</First_Name>
    <Last_Name>Savoie</Last_Name>
    <Email>savoie@nsidc.org</Email>
    <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>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Sean</First_Name>
    <Last_Name>Helfrich</Last_Name>
    <Email>shelfrich@natice.noaa.gov</Email>
    <Contact_Address>
      <Address>NOAA</Address>
      <Address>National Ice Center (NIC)</Address>
    </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>Cryosphere</Topic>
    <Term>Sea Ice</Term>
    <Variable_Level_1>Ice Extent</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Sea Ice</Term>
    <Variable_Level_1>Ice Growth/Melt</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>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Oceans</Topic>
    <Term>Sea Ice</Term>
    <Variable_Level_1>Ice Extent</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Oceans</Topic>
    <Term>Sea Ice</Term>
    <Variable_Level_1>Ice Growth/Melt</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>Arctic Sea Ice</Keyword>
  <Keyword>ICE EDGE</Keyword>
  <Keyword>Sea Ice</Keyword>
  <Keyword>Sea Ice Conditions</Keyword>
  <Keyword>Sea Ice Extent</Keyword>
  <Sensor_Name>
    <Short_Name>AMSR-E</Short_Name>
    <Long_Name>Advanced Microwave Scanning Radiometer-EOS</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>AMSU-A</Short_Name>
    <Long_Name>Advanced Microwave Sounding Unit-A</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>AMSU-B</Short_Name>
    <Long_Name>ADVANCED MICROWAVE SOUNDING UNIT B (AMSU-B)</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>ASAR</Short_Name>
    <Long_Name>Advanced Synthetic Aperature Radar</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>AVHRR</Short_Name>
    <Long_Name>Advanced Very High Resolution Radiometer</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>GOES I-M IMAGER</Short_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>MODIS</Short_Name>
    <Long_Name>Moderate-Resolution Imaging Spectroradiometer</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>PALSAR</Short_Name>
    <Long_Name>Phased Array type L-band Synthetic Aperture Radar</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>SAR</Short_Name>
    <Long_Name>Synthetic Aperture Radar</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>SEVIRI</Short_Name>
    <Long_Name>Spinning Enhanced Visible and Infrared Imager</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>SSM/I</Short_Name>
    <Long_Name>Special Sensor Microwave/Imager</Long_Name>
  </Sensor_Name>
  <Source_Name>
    <Short_Name>ALOS</Short_Name>
    <Long_Name>Advanced Land Observing Satellite</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>AQUA</Short_Name>
    <Long_Name>Earth Observing System, AQUA</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>DMSP</Short_Name>
    <Long_Name>Defense Meteorological Satellite Program</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>ENVISAT</Short_Name>
    <Long_Name>Environmental Satellite</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>ERS-2</Short_Name>
    <Long_Name>European Remote Sensing Satellite-2</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>GOES</Short_Name>
    <Long_Name>NOAA Geostationary Operational Environmental Satellites</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>MSG</Short_Name>
    <Long_Name>Meteosat Second Generation</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>NOAA POES</Short_Name>
    <Long_Name>NOAA Polar Orbiting Environmental Satellites</Long_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>RADARSAT-2</Short_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>SATELLITES</Short_Name>
  </Source_Name>
  <Data_Set_Progress>in work</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>0</Southernmost_Latitude>
    <Northernmost_Latitude>90</Northernmost_Latitude>
    <Westernmost_Longitude>-180</Westernmost_Longitude>
    <Easternmost_Longitude>180</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>CONTINENT</Location_Category>
    <Location_Type>NORTH AMERICA</Location_Type>
    <Location_Subregion1>CANADA</Location_Subregion1>
    <Location_Subregion2>HUDSON BAY</Location_Subregion2>
  </Location>
  <Location>
    <Location_Category>GEOGRAPHIC REGION</Location_Category>
    <Location_Type>NORTHERN HEMISPHERE</Location_Type>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>ARCTIC OCEAN</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>ARCTIC OCEAN</Location_Type>
    <Location_Subregion1>BEAUFORT SEA</Location_Subregion1>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>ARCTIC OCEAN</Location_Type>
    <Location_Subregion1>CHUKCHI 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>BALTIC SEA</Location_Subregion2>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>ATLANTIC OCEAN</Location_Type>
    <Location_Subregion1>NORTH ATLANTIC OCEAN</Location_Subregion1>
    <Location_Subregion2>GULF OF ST LAWRENCE</Location_Subregion2>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>PACIFIC OCEAN</Location_Type>
    <Location_Subregion1>NORTH PACIFIC OCEAN</Location_Subregion1>
    <Location_Subregion2>BERING SEA</Location_Subregion2>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>PACIFIC OCEAN</Location_Type>
    <Location_Subregion1>NORTH PACIFIC OCEAN</Location_Subregion1>
    <Location_Subregion2>SEA OF OKHOTSK</Location_Subregion2>
  </Location>
  <Location>
    <Location_Category>OCEAN</Location_Category>
    <Location_Type>PACIFIC OCEAN</Location_Type>
    <Location_Subregion1>WESTERN PACIFIC OCEAN</Location_Subregion1>
    <Location_Subregion2>YELLOW SEA</Location_Subregion2>
  </Location>
  <Data_Resolution>
    <Latitude_Resolution>4 km</Latitude_Resolution>
    <Longitude_Resolution>4 km</Longitude_Resolution>
  </Data_Resolution>
  <Quality>A quality assessment of this product has not been made.</Quality>
  <Data_Set_Language>English</Data_Set_Language>
  <Originating_Center>NSIDC_NOAA</Originating_Center>
  <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>128 - 37 MB</Distribution_Size>
    <Distribution_Format>GeoTIFF</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>16 - 768 KB</Distribution_Size>
    <Distribution_Format>PNG</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>16 KB</Distribution_Size>
    <Distribution_Format>ASCII Text</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>32 KB</Distribution_Size>
    <Distribution_Format>ESRI Shapefiles</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>516 MB</Distribution_Size>
    <Distribution_Format>NetCDF</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>57 KB</Distribution_Size>
    <Distribution_Format>Microsoft Excel</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>98 - 130 KB</Distribution_Size>
    <Distribution_Format>KML</Distribution_Format>
  </Distribution>
  <Reference>Arctic Climatology Project. 2000. Environmental Working Group joint U.S.-Russian sea ice atlas. Edited by F. Tanis and V. Smolyanitsky. Ann Arbor, MI: Environmental Research Institute of Michigan in association with the National Snow and Ice Data Center. CD-ROM.

Fetterer, F., compiler. 2006. A selection of documentation related to National Ice Center sea ice charts in digital format. NSIDC Special Report 13. Boulder, CO, USA: National Snow and Ice Data Center. Fetterer, F., K. Knowles, W. Meier, and M. Savoie. 2002, updated 2009. Sea Ice Index, Boulder, Colorado USA: National Snow and Ice Data Center. Digital media. Helfrich, S.R., D. McNamara, B.H. Ramsay, T. Baldwin, and T. Kasheta. 2007. Enhancements to, and forthcoming developments to the Interactive Multisensor Snow and Ice Mapping System (IMS), Hydrological Processes 21: 12, 1576-1586. McKenna, P., and W. N. Meier. 2002. SSM/I sea ice algorithm inter-comparison: Operational case studies from the National Ice Center, IGARSS Proceedings, INT_A32_04, Toronto, 24-28 June 2002.

Meier, W. N, M. L. van Woert, and C. Bertoia. 2001. Evaluation of operational SSM/I ice concentration algorithms, Ann. Glaciology, 33, 102-108.

Meier, Walter, 2005. Comparison of Passive Microwave Ice Concentration Algorithm Retrievals With AVHRR Imagery in Arctic Peripheral Seas. IEEE Transactions on Geoscience and Remote Sensing, Vol 40, No. 6, pp 1324-1334.

Meier, W. N., F. Fetterer, C. Fowler, P. Clemente-Colón, T. Street, Operational sea ice charts: An integrated data product suitable for observing long-term changes in Arctic sea ice? Poster presented at the AGU Fall Meeting, 2006, and available on the NSIDC Posters and Presentations page. Meier, W. N., T. Maksym and M.L. Van Woert, Evaluation of Arctic operational passive microwave products: a case study in the Barents Sea during October 2001. Ice in the Environment: Proceedings of the 16th IAHR International Symposium on Ice, Dunedin, New Zealand, 2nd-6th December 2002, International Association of Hydraulic Engineering and Research

National Ice Center. 2006. National Ice Center Arctic sea ice charts and climatologies in gridded format. Edited and compiled by F. Fetterer and C. Fowler. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.

Partington, K., T. Flynn, D. Lamb, C. Bertoia, and K. Dedrick., 2003. Late twentieth century Northern Hemisphere sea-ice record from U.S. National Ice Center ice charts, J. Geophys. Res., 108, C11, 3343, doi:10.1029/2002JC001623.

Rayner, N. A., D. E. Parker, E. B. Horton, C. K. Folland, L.V. Alexander, D. P. Rowell, E. C. Kent, and A. Kaplan. 2003. Global analysis of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century. Journal of Geophysical Research. 108 (D14). doi:10.1029/2002JD002670.

Willis, Z. M, Foster, C. Bertoia, and K. Dedrick. 2000. National Ice Center/Naval Ice Center support to submarine operations Undersea Warfare: Issue 8, pp. 18-21.</Reference>
  <Summary>The Multisensor Analyzed Sea Ice Extent  Northern Hemisphere (MASIE-NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection. Products include an ASCII text file of sea ice extent values in square km over the entire Northern Hemisphere with 16 separate Arctic regions identified, time series plots of the 16 regions, and image files that visually show where the sea ice is. The MASIE-NH imagery are provided at a nominal 4 km resolution. The input data comes from the 4 km Interactive Multisensor Snow and Ice Mapping System (IMS) snow and ice product produced by the National Ice Center (NIC). NIC utilizes visible imagery, passive microwave data, and NIC weekly analysis products to create their data product. The MASIE-NH products are distributed in a number of formats including ASCII text, GeoTIFF, PNG, shapefiles, and Google Earth files and are available for the previous four weeks (28 days). The most recent days worth of imagery plus the ASCII text data file are provided via the MASIE Web site. An archive of the previous four weeks of imagery can be obtained via FTP.

Note: MASIE may look like several other sea ice products distributed at NSIDC and elsewhere, but its source data and intended uses are different. If intended and appropriate uses of the data are not clear after reading the documentation, please contact &lt;a href="mailto:nsidc@nsidc.org"&gt;NSIDC User Services&lt;/a&gt;.</Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://www.natice.noaa.gov/ims/</URL>
    <Description>IMS Products at NIC</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://www.natice.noaa.gov/products/</URL>
    <Description>NIC Ice Analysis Products</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://climate.rutgers.edu/snowcover/</URL>
    <Description>Rutgers University Global Snow Lab</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://www.arcus.org/search/seaiceoutlook/</URL>
    <Description>The SEARCH Sea Ice Outlook</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW RELATED INFORMATION</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/data/g02156.html</URL>
    <Description>IMS Daily Northern Hemisphere Snow and Ice Analysis</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW RELATED INFORMATION</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/data/g02172.html</URL>
    <Description>NIC Arctic Sea Ice Charts and Climatologies</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW RELATED INFORMATION</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/data/nsidc-0046.html</URL>
    <Description>Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW RELATED INFORMATION</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/data/g02176.html</URL>
    <Description>Sea Ice Charts of the Russian Arctic, 1933-2006</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW RELATED INFORMATION</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/data/g02182.html</URL>
    <Description>Sea Ice Edge Location and Extent in the Russian Arctic, 1933-2006</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW RELATED INFORMATION</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/data/g02135.html</URL>
    <Description>Sea Ice Index</Description>
  </Related_URL>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2010-12-14</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-12</Last_DIF_Revision_Date>
  <DIF_Revision_History> Updated citation. No QC needed.</DIF_Revision_History>
</DIF>
