Entry_ID: NSIDC-0501
Entry_Title: Modeled Radar Attenuation Rate Profile at the Vostok 5G Ice Core Site, Antarctica
Group: Data_Set_Citation
   Dataset_Creator: MacGregor, J., K. Matsuoka, and M. Studinger
   Dataset_Title: Modeled Radar Attenuation Rate Profile at the Vostok 5G Ice Core Site, Antarctica
   Dataset_Release_Date: 2011-08-15
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0501.html
   Dataset DOI: http://dx.doi.org/10.7265/N59K485D
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Joseph
   Middle_Name: A.
   Last_Name: MacGregor
   Group: Contact_Address
      Address: University of Texas at Austin
      Address: 10100 Burnet Rod., Bldg. 196
      City: Austin
      Province_or_State: TX
      Postal_Code: 78758
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kenichi
   Last_Name: Matsuoka
   Email: matsuoka@ess.washington.edu
   Email: matsuoka@npolar.no
   Group: Contact_Address
      Address: Norwegian Polar Institute
      Address: Fram Centre 
      City: Tromsø
      Postal_Code: NO-9296
      Country: Norway
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Michael
   Middle_Name: S.
   Last_Name: Studinger
   Email: michael.studinger@nasa.gov
   Group: Contact_Address
      Address: NASA Goddard Space Flight Center
      City: Greenbelt
      Province_or_State: MD
      Postal_Code: USA
      Country: USA
   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: Atmosphere
   Term: Precipitation
   Variable_Level_1: Snow
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Airborne Radar Sounding
Keyword: Antarctic Ice Sheet
Keyword: Ice Penetrating Radar
Keyword: Ice Sheet
Keyword: Lake Vostok
Keyword: Model
Keyword: Modeling
Keyword: MODEL OUTPUT
Keyword: MODELS
Sensor_Name: ION CHROMATOGRAPHS
Sensor_Name: THERMOMETERS
Source_Name: FIELD INVESTIGATION
Source_Name: FIELD SURVEYS
Source_Name: MODELS
Group: Temporal_Coverage
   Start_Date: 2007-01-01
   Stop_Date: 2008-12-31
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -78.47
   Northernmost_Latitude: -78.47
   Westernmost_Longitude: 73.17
   Easternmost_Longitude: 73.17
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: POLAR
End_Group
Group: Data_Resolution
   Vertical_Resolution: 10 meter
End_Group
Data_Set_Language: English
Originating_Center: UTX-AUSTIN/IG
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: AGDC > Antarctic Glaciological Data Center
   Data_Center_URL: http://nsidc.org/agdc/
   Group: Personnel
      Role: Data Center Contact
      First_Name: AGDC
      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_Size: 15 KB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Reference

   MacGregor, J. A., D. P. Winebrenner, H. Conway, K. Matsuoka, P. A. Mayewski, 
   and G. D. Clow. 2007. Modeling englacial radar attenuation at Siple Dome, West 
   Antarctica, using ice chemistry and temperature data, Journal of Geophysical 
   Research, 112, F03008, doi:10.1029/2006JF000717.

   MacGregor, Joseph A., Kenichi Matsuoka, and Micheal Studinger. 2009. Radar 
   detection of accreted ice over Lake Vostok, Antarctica, Earth and Planetary 
   Science Letters, 282(1-4), 222-233, doi:10.1016/j.epsl.2009.03.018

End_Group
Group: Summary

   This data set provides a modeled radar attenuation rate profile, showing the 
   predicted contributions from pure ice and impurities to radar attenuation at 
   the Vostok 5G ice core site in Antarctica, as well as the total attenuation 
   rate and its formal uncertainty. The model data are based on borehole 
   temperature logs, concentrations of major soluble ions measured from melted 
   ice core samples, and information about the electrical conductivity of ice. 
   Attenuation rates and their spatial variability are important constraints for 
   radar studies of ice sheets. Parameters include depth, total attenuation rate, 
   and attenuation rate contribution from pure ice, acidity, and salinity.

   Data are available via FTP as a text file (.txt) with columns in comma 
   separated value format.

End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2011-08-15
Last_DIF_Revision_Date: 2013-03-20
DIF_Revision_History:  Added DOI