Entry_ID: NSIDC-0518
Entry_Title: Subglacial water flow paths under Thwaites Glacier, West Antarctica
Group: Data_Set_Citation
   Dataset_Creator: Carter, S. P., D. A. Young, and D. D. Blankenship
   Dataset_Title: Subglacial water flow paths under Thwaites Glacier, West Antarctica
   Dataset_Release_Date: 2012-05-21
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0518.html
   Dataset DOI: http://dx.doi.org/10.7265/N5RJ4GC8
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Sasha
   Middle_Name: P.
   Last_Name: Carter
   Email: spcarter@ucsd.edu
   Group: Contact_Address
      Address: University of California, San Diego
      Address: Scripps Institution of Oceanography
      Address: 9500 Gilman Drive
      Address: Mail Code: 0225
      City: La Jolla
      Province_or_State: CA
      Postal_Code: 92093
      Country: US
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Duncan
   Middle_Name: A.
   Last_Name: Young
   Group: Contact_Address
      Address: University of Texas at Austin
      Address: Jackson School of Geosciences, Institute for Geophysics
      Address: J.J. Pickle Research Campus
      Address: Bldg. 196
      Address: 10100 Burnet Road (R2200)
      Address: Austin, TX 78758-4445
      City: Austin
      Province_or_State: Texas
      Postal_Code: 78758-4445
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Donald
   Middle_Name: D.
   Last_Name: Blankenship
   Email: blank@ig.utexas.edu
   Group: Contact_Address
      Address: University of Texas at Austin
      Address: Institute for Geophysics
      Address: 4412 Spicewood Springs Rd. #600
      City: Austin
      Province_or_State: TX
      Postal_Code: 78759-8500
      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: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Elevation/Ice Sheet Elevation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Thickness/Ice Sheet Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Topography/Ice Sheet Topography
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Airborne geophysical survey of the Amundsen Sea Embayment, Antarctica (AGASEA)
Keyword: Airborne Radar Sounding
Keyword: bed elevations
Keyword: Glacier
Keyword: Hydrology
Keyword: Ice Penetrating Radar
Keyword: Ice Sheet Elevation
Keyword: subglacial
Keyword: Thwaites Glacier
Keyword: West Antarctic Ice Sheet
Sensor_Name: RADAR > Radio Detection and Ranging
Source_Name: AIRCRAFT
Group: Temporal_Coverage
   Start_Date: 2004-12-07
   Stop_Date: 2005-01-31
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -80
   Northernmost_Latitude: -75
   Westernmost_Longitude: -120
   Easternmost_Longitude: -90
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: POLAR
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: 125 KB
   Distribution_Format: PDF
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 48 KB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Multimedia_Sample
   File: http://nsidc.org/data/docs/agdc/nsidc0518-carter/images/sample-map.png
   Caption: Water flow paths beneath Thwaites Glacier (Carter et al., 2012)
   Group: Description

      Map of water flow paths beneath Thwaites Glacier, West Antarctica (Carter et 
      al., 2012).

   End_Group
End_Group
Group: Multimedia_Sample
   File: http://nsidc.org/data/docs/agdc/nsidc0518-carter/images/sample-map.png
   Caption: Sample Flow Paths Map
   Description: Image: Carter, S. P. et. al., 2012
End_Group
Group: Reference

   Holt, J. W., D. D. Blankenship, D. L. Morse, D. A. Young, M. E. Peters, S. D. 
   Kempf, T. G. Richter, D. G. Vaughan, and H. Corr. 2006. New Boundary 
   Conditions for the West Antarctic Ice Sheet: Subglacial Topography of the 
   Thwaites and Smith Glacier Catchments, Geophysical Research Letters, 
   33(L09502), 10.1029/2005GL025561.

   Peters, M. E., D. D. Blankenship, S. P. Carter, D. A. Young, S. D. Kempf, and 
   J. W. Holt. 2007. Along-Track Focusing of Airborne Radar Sounding Data from 
   West Antarctica for Improving Basal Reflection Analysis and Layer Detection, 
   IEEE Transactions on Geoscience and Remote Sensing, 45(9), 2725-2736, 
   10.1109/TGRS.2007.897416.

   Carter, S. P., H. A. Fricker, D. D. Blankenship, J. V. Johnson, W. H. 
   Lipscomb, S. F. Price, and D. A. Young. 2011. Modeling Five Years of 
   Subglacial Lake Activity in the MacAyeal Ice Stream (Antarctica) Catchment 
   Through Assimilation of ICESat Laser Altimetry, Journal of Glaciology, 
   57(206), 1098-1112, 10.3189/002214311798843421.

End_Group
Group: Summary

   This data set contains subglacial water flow paths beneath Thwaites Glacier, 
   West Antarctica, interpreted from ice thickness and bed elevation measurements 
   collected between 7 December 2004 and 31 January 2005 by the Airborne 
   Geophysical Survey of the Amundsen Embayment (AGASEA) expedition. Data consist 
   of an ASCII text file with geographical coordinates, hydraulic head, and bed 
   and surface elevations, and a corresponding .pdf map.

   Data are available via FTP.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://www.ig.utexas.edu/research/projects/agasea/
   Description: AGASEA Home Page
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2012-05-21
Last_DIF_Revision_Date: 2013-03-20
DIF_Revision_History:  Added DOI