Dataset Information
Radar Sounding Observations of the Amundsen Sea Embayment, 2004-2005
Data DOI:
Cite as
Chu, W., Culberg, R., Hilger, A., Jordan, T., Schroeder, D., Seroussi, H., et al. (2021) "Radar Sounding Observations of the Amundsen Sea Embayment, 2004-2005" U.S. Antarctic Program (USAP) Data Center. doi:
AMD - DIF Record(s)
The dataset contains radargrams from the 2004-2005 airborne radar sounding surveys on Pine Island Glacier and Thwaites Glacier as part of the BBAS and AGASEA projects. It also includes basal reflectivity and one-way attenuation rates derived from these radargrams. Radar data from the Pine Island Ice Shelf inland to the Bentley Sublglacial Trench were collected by the British Antarctica Survey (BAS) with the Polarimetric-radar Airborne Science INstrument (PASIN) radar sounder, operating at a center frequency of 150 MHz and 15 MHz bandwidth. Data over Thwaites Glacier were collected by the University of Texas Institute for Geophysics (UTIG) High Capability Airborne Radar Sounder (HiCARS) operating at a center frequency of 60 MHz with 15 MHz of bandwidth. Data are provided as 50km segments in NetCDF files, along with kml location files, and pdf files for browsing radargrams images by flight transect. Details of the processing methods are included in the associated README file. The processed data sets (reflectivity and attenuation) are provided as a single NetCDF file for each flight transect. Details of the calibration and processing procedures are provided in Chu, et al (in review).
Chu, Winnie; Hilger, Andrew M.; Culberg, Riley; Schroeder, Dustin; Jordan, Thomas M.; Seroussi, Helene; Young, Duncan A.; Vaughan, David G.
Date Created:
USAP-DC (current)
Spatial Extent(s)
West: -130, East: -82.7, South: -81.5, North: -72.9
Temporal Extent(s)
Start: 2004-12-13 - End: 2005-01-30
  1. Chu, W., Hilger, A. M., Culberg, R., Schroeder, D. M., Jordan, T. M., Seroussi, H., et al. (2021). Multi-System Synthesis of Radar Sounding Observations of the Amundsen Sea Sector from the 2004-2005 Field Season. Journal of Geophysical Research: Earth Surface, 126, e2021JF006296. (doi:10.1029/2021JF006296)
  2. Holt, J. W., Blankenship, D. D., Morse, D. L., Young, D. A., Peters, M. E., Kempf, S. D., et al. (2006). New boundary conditions for the West Antarctic Ice Sheet: Subglacial topography of the Thwaites and Smith glacier catchments. Geophysical Research Letters, 33(9), 518. (doi:10.1029/2005GL025561 )
  3. Vaughan, D. G., Corr, H. F. J., Ferraccioli, F., Frearson, N., O'Hare, A., Mach, D., et al. (2006). New boundary conditions for the West Antarctic ice sheet: Subglacial topography beneath Pine Island Glacier. Geophysical Research Letters, 33(9), 516. (doi:10.1029/2005GL025588 )
Supplemental Docs
Data Files
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93.7 GB
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MD5 Checksum: 9dcdfe688307291562345befd5d0bae7 File Type: XML; Adobe Portable Document Format (PDF); Readme Text File; Google Earth; NetCDF

68.5 kB

MD5 Checksum: 612c2eb625962444de45ee92d5c88f5c File Type: Text File

24.1 MB

MD5 Checksum: ee7280676ecbadbd3e3395a3d4376f13 File Type: Adobe Portable Document Format (PDF)

125.4 kB

MD5 Checksum: 5d3eb9c2083a10f3576ab2b580231de1 File Type: Readme Text File

100.8 MB

MD5 Checksum: 1d0edfdb6f738ae7331dcb064c5dccc1 File Type: Google Earth

This dataset has been downloaded 11 times since March 2017 (based on unique date-IP combinations)