NSIDC-0303
Radar Investigations of Antarctic Ice Stream Margins, Siple Dome, 1998
Nadine A. Nereson
Radar Investigations of Antarctic Ice Stream Margins, Siple Dome, 1998
2007-07-06
Boulder, Colorado USA
NSIDC: National Snow and Ice Data Center
http://nsidc.org/data/nsidc-0303.html
http://dx.doi.org/10.7265/N52B8VZP
Investigator
Nadine
A.
Nereson
nadine@geophys.washington.edu
1 206 543-0162
University of Washington
Department of Earth and Space Sciences
Box 35130
University of Washington
Seattle
WA
98195-1310
USA
Investigator
Charles
Raymond
University of Washington
University of Washington
Geophysics Program Box 351650
Seattle
WA
98195
Technical Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199 x
1 303 492-2468 x
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
EARTH SCIENCE
Spectral/Engineering
Radar
Radar Imagery
Bed, Surface, and Internal Layer Geometry
EARTH SCIENCE
Spectral/Engineering
Radar
Radar Reflectivity
Bed Reflectivity
Climatology/Meteorology/Atmosphere
Antarctica
Bed Geometry
Bed Reflectivity
Engelhardt Ridge
GPR
GPS
Ice Stream
Ice Stream Margins
Internal Layer Geometry
internal layering
MacAyeal Ice Stream
Radar
Shabtaie Ridge
Siple Dome
Surface Geometry
Whillans Ice Stream
GPR
Ground Penetrating Radar
GPS RECEIVERS
GPS
Global Positioning System Satellites
GROUND-BASED OBSERVATIONS
1998-11-14
1998-12-13
complete
-83.3528
-80.1678
-141.6722
-138.3697
322.703 meters
560.816 meters
CONTINENT
ANTARCTICA
SIPLE DOME
Because the airwave signal swamps the first 1 µs of the data record, the first step in data processing is to remove the mean waveform from the profile to remove the airwave effect and reveal shallow layer information in the first 1 µs. Since the GPS data have not been fully processed, absolute error in vertical elevation could be as large as 50 m, so the displayed elevation scales for the radar profiles should be considered approximate. The profiles displayed in images are based on data files that have been subjected to demeaning and filtering and would therefore not be appropriate for any analyses directed toward accurate assessment of amplitude and phase without careful consideration.
English
NSIDC_AGDC
NSIDC
National Snow and Ice Data Center
http://nsidc.org
Data Center Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
NSIDC_AGDC
NSIDC Antarctic Glaciological Data Center
http://nsidc.org/agdc/
Data Center Contact
NSIDC AGDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
NSIDC_USADCC
NSIDC U.S. Antarctic Data Coordination Center
http://nsidc.org/usadcc/
Data Center Contact
NSIDC USADCC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
ASCII Text
MATLAB
Microsoft Word
PDF
Binary
FTP
519 MB
Fisher, A. M., R. W. Jacobel, N. M. Sundell, and A. M. Gades 1995. Bedrock topography and internal stratigraphy of the Siple Dome summit. EOS, Transactions 76, F194.
Gades, A. M., C. F. Raymond, H. Conway, and R. W. Jacobel. 2000. Bed properties of Siple Dome and adjacent ice streams, West Antarctica, inferred from radio echo-sounding measurements. Journal of Glaciology 46, 88-94. Jacobel, R., T. Scambos, C. Raymond, and A. Gades. 1996. Changes in the configuration of Ice Stream flow from the West Antarctic Ice Sheet. Journal of Geophysical Research 101, 5499-5504.
Jacobel, R. W., T. A. Scambos, N. A. Nereson, and C. Raymond. 2000. Changes in the margin of Ice Stream C, Antarctica. Journal of Glaciology 46, 102-110.
Jacobson, H. P., and C. F. Raymond. 1998. Thermal effects on the location of ice stream margins. Journal of Geophysical Research 103, 12,111-12,122.
Nereson, N. A. 2000. Elevation of ice stream margin scars after stagnation. Journal of Glaciology 46, 111-118. Nereson, N. A., and C. F. Raymond 1995. The geometry and stratigraphy of Siple Dome and implications for its history. EOS, Transactions 76.
Nereson, N. A., C. F. Raymond, R. W. Jacobel, and E. D. Waddington. 1997. The history of the spatial accumulation pattern at Siple Dome, West Antarctica, from radar measurements. EOS Transactions, 1997 Fall Meeting Supplement 78, F252.
Nereson, N. A., C. F. Raymond, E. D. Waddington, and R. W. Jacobel. 1998. Migration of the Siple Dome ice divide, West Antarctica. Journal of Glaciology 44 , 643-652.
Raymond, C., N. Nereson, A. Gades, H. Conway, R. Jacobel, and T. Scambos. 1995. Geometry and stratigraphy of Siple Dome, Antarctica. Antarctic Journal of the United States, 1995 Review 30, 91-93.
Scambos, T., and N. Nereson. 1995. Satellite image and GPS study of the morphology of Siple Dome, Antarctica. Antarctic Journal of the United States, 1995 Review 30, 87-89.
This data set consists of surface-based radar measurements, including geometry of the bed, surface, and internal layers, and bed reflectivity measurements at two sites along ice stream margins at Siple Dome, Antarctica. The research is a radar examination of bed reflection characteristics and internal layer geometry in two inter-ice-stream ridges, the Shabtaie Ridge (Ridge D/E) and the Engelhardt Ridge (Ridge B/C), and across margins with the adjacent ice streams, the MacAyeal Ice Stream (Ice Stream E) and the Whillans Ice Stream (Ice Stream B). Investigators collected these radar data from 14 November through 13 December 1998.
Data are in Microsoft Word, PDF, ASCII text, MATLAB, binary, and various image formats. Investigators have also provided code for MATLAB routines that they used to view the radar data. Data are available via FTP.
VIEW RELATED INFORMATION
http://nsidc.org/data/nsidc-0274.html
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GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation
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Ice Thickness and Internal Layer Depth Along the 2001 and 2002 US ITASE Traverses
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http://nsidc.org/data/nsidc-0085.html
Siple Dome Glaciology and Ice Stream History 1994, 1996
VIEW RELATED INFORMATION
http://nsidc.org/data/nsidc-0269.html
US International Trans-Antarctic Scientific Expedition (US ITASE): GPR Profiles and Accumulation Mapping
AMD/US
CEOS IDN DIF
9.7
2007-07-06
2013-03-18
Added DOI