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Radar Investigations of Antarctic Ice Stream Margins, Siple Dome, 1998

Entry ID: NSIDC-0303

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Summary

Abstract: 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 ...

Related URL

Link: VIEW RELATED INFORMATION

Description: Siple Dome Glaciology and Ice Stream History 1994, 1996

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

	N: -80.17	S: -83.35	E: -138.37	W: -141.67
Min Altitude: 322.703 M Max Altitude: 560.816 M

Data Set Citation

Dataset Originator/Creator: Nadine A. Nereson

Dataset Title: Radar Investigations of Antarctic Ice Stream Margins, Siple Dome, 1998

Dataset Release Date: 2007-07-06

Dataset Release Place: Boulder, Colorado USA

Dataset Publisher: National Snow and Ice Data Center (NSIDC)

Data Presentation Form: Digital Media

Online Resource: http://nsidc.org/data/nsidc-0303.html

Temporal Coverage

Start Date: 1998-11-14

Stop Date: 1998-12-13

Location Keywords

CONTINENT > ANTARCTICA > SIPLE DOME

GEOGRAPHIC REGION > POLAR

Science Keywords

SPECTRAL/ENGINEERING > RADAR > RADAR IMAGERY > BED, SURFACE, AND INTERNAL LAYER GEOMETRY

SPECTRAL/ENGINEERING > RADAR > RADAR REFLECTIVITY > BED REFLECTIVITY

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

GROUND-BASED OBSERVATIONS

GPS > Global Positioning System Satellites

Instrument

GPS RECEIVERS

GPR > Ground Penetrating Radar

Quality 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.

Ancillary Keywords

Antarctica

Bed Geometry

Data Set Progress

COMPLETE

Originating Center

Antarctic Glaciological Data Center

Data Center

National Snow and Ice Data Center

Data Center URL: http://nsidc.org

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

NSIDC Antarctic Glaciological Data Center

Data Center URL: http://nsidc.org/agdc/
Dataset ID: NSIDC-0303

Data Center Personnel
Name: NSIDC AGDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

NSIDC U.S. Antarctic Data Coordination Center

Data Center URL: http://nsidc.org/usadcc/
Dataset ID: NSIDC-0303

Data Center Personnel
Name: NSIDC USADCC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

Distribution

Distribution Format: ASCII text

Distribution Format: Island Draw

Distribution Format: MATLAB

Distribution Format: Microsoft Word

Distribution Format: PDF

Distribution Format: Paint Shop

Distribution Format: PostScript

Distribution Format: binary

Distribution Media: FTP

Distribution Size: 519 MB

Fees: none

Personnel

NADINE A. NERESON

Role: INVESTIGATOR

Phone: (206) 543-0162

Email: nadine at geophys.washington.edu

Contact Address:

Box 35130

University of Washington

City: Seattle

Province or State: WA

Postal Code: 98195-1310

Country: USA

CHARLES RAYMOND

Role: INVESTIGATOR

Phone: (206) 543-4914

Email: charlie at ess.washington.edu

Contact Address:

University of Washington

Department of Earth and Space Sciences

Box 351310

City: Seattle

Province or State: WA

Postal Code: 98105

Country: USA

NSIDC USER SERVICES

Role: TECHNICAL CONTACT

Phone: +1 (303) 492-6199

Fax: +1 (303) 492-2468

Email: nsidc at nsidc.org

Contact Address:

National Snow and Ice Data Center

CIRES, 449 UCB

University of Colorado

City: Boulder

Province or State: CO

Postal Code: 80309-0449

Country: USA

Publications/References

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, ...

Creation and Review Dates

DIF Creation Date: 2007-07-06

Last DIF Revision Date: 2012-05-14

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