Entry_ID: G00799
Entry_Title: Arctic and Southern Ocean Sea Ice Concentrations
Group: Data_Set_Citation
   Dataset_Creator: Chapman, W. L. and J. E. Walsh. 
   Dataset_Title: Arctic and Southern Ocean Sea Ice Concentrations
   Dataset_Release_Date: 1991-01-01updated 1996
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/g00799.html
   Dataset DOI: http://dx.doi.org/10.7265/N5057CVT
End_Group
Group: Personnel
   Role: Investigator
   First_Name: John
   Middle_Name: E
   Last_Name: Walsh
   Email: walsh@wx.atmos.uiuc.edu
   Phone: 1 217 333-7521 x
   Group: Contact_Address
      Address: University of Illinois at Urbana-Champaign
      Address: University of Illinois
      Address: Department of Atmospheric Sciences
      Address: 105 South Gregory Avenue
      City: Urbana
      Province_or_State: IL
      Postal_Code: 61801
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: P.
   Middle_Name: M.
   Last_Name: Kelly
   Phone: 44  (0) 1603 56161 
   Group: Contact_Address
      Address: Climatic Research Unit
      Address: University of East Anglia
      Address: Norwich, UK NR4 7TJ
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: William
   Middle_Name: L
   Last_Name: Chapman
   Email: chapman@faldo.atmos.uiuc.edu
   Group: Contact_Address
      Address: University of Illinois
      Address: Department of Atmospheric Sciences
      Address: University of Illinois
      Address: 105 S. Gregory Avenue
      City: Urbana
      Province_or_State: IL
      Postal_Code: 61801
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Sea Ice
   Variable_Level_1: Ice Extent
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Sea Ice
   Variable_Level_1: Sea Ice Concentration
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Oceans
   Term: Sea Ice
   Variable_Level_1: Ice Extent
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Oceans
   Term: Sea Ice
   Variable_Level_1: Sea Ice Concentration
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Extent
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
ISO_Topic_Category: Oceans
Keyword: Antarctic
Keyword: Arctic
Keyword: Global Change
Keyword: Gridded Data
Keyword: Ice Concentration
Keyword: Model Input Data
Group: Temporal_Coverage
   Start_Date: 1953-01-01
   Stop_Date: 1995-08-31
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: -50
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: 40
   Northernmost_Latitude: 90
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: POLAR
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ARCTIC OCEAN
   Detailed_Location: BARENTS SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ARCTIC OCEAN
   Location_Subregion1: BEAUFORT SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ARCTIC OCEAN
   Location_Subregion1: CHUKCHI SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ATLANTIC OCEAN
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ATLANTIC OCEAN
   Location_Subregion1: NORTH ATLANTIC OCEAN
   Detailed_Location: GREENLAND SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: PACIFIC OCEAN
   Detailed_Location: BERING SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: PACIFIC OCEAN
   Location_Subregion1: NORTH PACIFIC OCEAN
   Location_Subregion2: BERING SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: PACIFIC OCEAN
   Location_Subregion1: NORTH PACIFIC OCEAN
   Location_Subregion2: GULF OF ALASKA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: PACIFIC OCEAN
   Location_Subregion1: NORTH PACIFIC OCEAN
   Location_Subregion2: SEA OF JAPAN
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: PACIFIC OCEAN
   Location_Subregion1: NORTH PACIFIC OCEAN
   Location_Subregion2: SEA OF OKHOTSK
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: SOUTHERN OCEAN
   Detailed_Location: AMUNDSEN SEA
End_Group
Group: Data_Resolution
   Temporal_Resolution: 1 mon
End_Group
Project: CGC > NOAA Climate and Global Change Program
Project: ESIP > Earth Science Information Partners Program
Data_Set_Language: English
Originating_Center: NOAA
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NOAA > National Oceanic and Atmospheric Administration
   Data_Center_URL: http://nsidc.org/noaa/
   Group: Personnel
      Role: Data Center Contact
      First_Name: NOAA
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 x
      Fax: 1 303  492-2468 x
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
End_Group
Group: Reference

   Walsh, J.E., Data set on Northern Hemisphere sea ice extent, National Snow and 
   Ice Data Center, Glaciological Data, Report GD-2, part 1, 49-51, 1978.

   Walsh, J.E. and C.M. Johnson, Analysis of Arctic sea ice fluctuations 
   1953-1977.  J. Phys. Oceanogr. 9(3), 580-591, 1978.

End_Group
Group: Summary

   Monthly sea ice concentration for Arctic (1901 to 1995) and Southern oceans 
   (1973 to 1990) were digitized on a standard 1-degree grid (cylindrical 
   projection) to provide a relatively uniform set of sea ice extent for all 
   longitudes, as a basis for hemispheric scale studies of observed sea ice 
   fluctuations (Walsh 1978). The Arctic grid covers the Arctic Ocean and 
   portions of peripheral seas where sea ice occurs during all or part of the 
   year. The Southern Ocean grid extends to approximately 50 degrees south 
   latitude. Potential uses of this data set include statistical analysis of 
   anomalies in different regions, computing regional and hemispheric trends, and 
   modeling the high latitude surface energy budget. Data sources are U.S. Fleet 
   Weather Facility, U.S. Navy National Ice Center (formerly Navy/NOAA Joint Ice 
   Center), U.S. Naval Oceanographic Office, Canadian Department of Transport, 
   British Meteorological Office, Danish Meteorological Institute, Norwegian 
   Polar Institute, and Icelandic ice summaries.

   Data are available via ftp. Software to select and print grids by date is also 
   available.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/seaice/
   Description: Sea Ice Products at NSIDC
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/G00799.html
   Description: Access to sea ice concentration information and data
End_Group
IDN_Node: USA/NASA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 1991-01-01
Last_DIF_Revision_Date: 2013-03-25
DIF_Revision_History:  Fixed broken data access link.