Entry_ID: GGD9
Entry_Title: Seasonal and annual dynamics of frozen ground, central highland of Iceland
Group: Data_Set_Citation
   Dataset_Creator: Thorhalsdottir, T.E.
   Dataset_Title: Seasonal and annual dynamics of frozen ground, central highland of Iceland
   Dataset_Release_Date: 1998-01-01
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/ggd9.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Thora Ellen
   Last_Name: Thorhalsdottir
   Email: theth@rhi.hi.is
   Phone: 1 354 525 4607 
   Fax: 1 354  525 4069 
   Group: Contact_Address
      Address: University of Iceland
      Address: Institute of Biology
      Address: Grensasvegur 12
      City: Reykjavik
      Postal_Code: 108
      Country: Iceland
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Temperature
   Variable_Level_1: Degree Days
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Frozen Ground
   Variable_Level_1: Active Layer
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Frozen Ground
   Variable_Level_1: Permafrost
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Frozen Ground
   Variable_Level_1: Seasonally Frozen Ground
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Frozen Ground
   Variable_Level_1: Active Layer
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Frozen Ground
   Variable_Level_1: Permafrost
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Frozen Ground
   Variable_Level_1: Seasonally Frozen Ground
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Keyword: Active Layer
Keyword: Meteorology
Keyword: Patterned Ground
Keyword: Permafrost Properties
Group: Temporal_Coverage
   Start_Date: 1983-01-01
   Stop_Date: 1991-12-31
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: 64.5
   Northernmost_Latitude: 64.5
   Westernmost_Longitude: -18.667
   Easternmost_Longitude: -18.667
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: EUROPE
   Location_Subregion1: NORTHERN EUROPE
   Location_Subregion2: ICELAND
   Detailed_Location: THJORSARVER, CENTRAL HIGHLAND, ICELAND
End_Group
Data_Set_Language: English
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: FGDC > Frozen Ground Data Center
   Data_Center_URL: http://nsidc.org/fgdc/
   Group: Personnel
      Role: Data Center Contact
      First_Name: FGDC
      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
   Distribution_Format: Microsoft Excel
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Reference

   GGD009 Thora Ellen Thorhallsdottir Thorhallsdottir, T.E. 1996. Seasonal and 
   annual dynamics of frozen ground in the central highland of Iceland. Arctic 
   and  Alpine Research, 28(2), p. 237-243.

End_Group
Group: Summary

   This dataset documents a nine-year study to investigate the seasonal and 
   annual dynamics of frozen ground and explore the relationship with 
   environmental factors. The presence/absence of frozen ground and active layer 
   thickness were recorded three times over the growing season (4-7 July, 1-4 
   August, and 20-24 August) at 51 permanent points in different plant 
   communities and on 12 palsas (Thorhallsdottir 1996, p. 237).  Sample size is 
   variable: 33 permanent measurement stations in 1983, 29 in 1984, 63 in 
   1985-1991. Active layer depth measurement sites averaged 51 over the span of 
   the data set. Data include mean active layer depth (and standard error) in 
   early July and early August (for palsas and with palsas excluded); monthly 
   degree days above zero, precipitation, snow depth, and frost degree days 
   (i.e., below zero.) Data are presented on the CAPS Version 1.0 CD-ROM, June 
   1998.

End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 1998-01-01
Last_DIF_Revision_Date: 2012-08-24
DIF_Revision_History: added creator & publisher