Entry_ID: NSIDC-0517
Entry_Title: AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica
Group: Data_Set_Citation
   Dataset_Creator: Blankenship, D., and D. Young
   Dataset_Title: AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica
   Dataset_Release_Date: 2012-05-032012
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0517.html
   Dataset DOI: http://dx.doi.org/10.7265/N5W95730
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: 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: John
   Middle_Name: W.
   Last_Name: Holt
   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:  78759-850
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Scott
   Middle_Name: D.
   Last_Name: Kempf
   Group: Contact_Address
      Address: University of Texas at Austin
      Address: Institute for Geophysics
      Address: Jackson School of Geosciences, 
      Address: J.J. Pickle Research Campus Bldg. 196
      Address: 10100 Burnet Road (R2200) 
      City: Austin
      Province_or_State: Texas
      Postal_Code: 78758-4445
      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 Topography/Ice Sheet Topography
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Airborne geophysical survey of the Amundsen Sea Embayment, Antarctica (AGASEA)
Keyword: Airborne Radar Sounding
Keyword: Antarctic Ice Sheet
Keyword: Glacier
Keyword: glaciers
Keyword: GPS
Keyword: Ice Penetrating Radar
Keyword: Ice Sheet
Keyword: Ice Sheet Thickness
Keyword: Model Input Data
Keyword: Thwaites Glacier
Sensor_Name: GPS > Global Positioning System
Sensor_Name: MAGNETOMETERS
Sensor_Name: RADAR > Radio Detection and Ranging
Source_Name: AIRCRAFT
Source_Name: DHC-6 > DeHavilland Twin Otter
Group: Temporal_Coverage
   Start_Date: 2004-12-10
   Stop_Date: 2005-01-29
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: -83
   Northernmost_Latitude: -73
   Westernmost_Longitude: -125
   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: 71 MB
   Distribution_Format: ASCII Text (.txt)
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. 

   Peters, M. E., D. D. Blankenship, and D. L. Morse. 2005. Analysis Techniques 
   for Coherent Airborne Radar Sounding: Application to West Antarctic Ice 
   Streams, Journal of Geophysical Research, 110(B06303), 10.1029/2004JB003222.

End_Group
Group: Summary

   This data set contains line-based radar-derived ice thickness and bed 
   elevation data, collected as part of the Airborne Geophysical Survey of the 
   Amundsen Embayment (AGASEA) expedition, which took place over Thwaites Glacier 
   in West Antarctica from 2004 to 2005. The data set includes ice thickness, ice 
   sheet bed elevation, and ice sheet surface elevation, derived from 
   ice-penetrating radar and aircraft GPS positions. The data are spaced on a 15 
   km by 15 km grid over the entire catchment of the glacier, and sampled at 
   approximately 15 meters along track. Most of the radar data used for this 
   dataset has been processed using a 1-D focusing algorithm, to reduce the along 
   track resolution to tens of meters, to improve boundary conditions for ice 
   sheet models. 

   Data are available via FTP in space-delimited ASCII format.

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 Web Page
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2012-05-03
Last_DIF_Revision_Date: 2014-03-12
DIF_Revision_History: Fixed platform/sensor pair.