Tributaries of West Antarctic Ice Streams Revealed by RADARSAT Interferometry-Reference-Cited by-同舟云学术

Tributaries of West Antarctic Ice Streams Revealed by RADARSAT Interferometry

Published:1999-10-08 Issue:5438 Volume:286 Page:283-286
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Joughin Ian¹,Gray Laurence²,Bindschadler Robert³,Price Stephen⁴,Morse David⁵,Hulbe Christina³,Mattar Karim²,Werner Charles¹

Affiliation:

1. Jet Propulsion Laboratory, California Institute of Technology, M/S 300-235, 4800 Oak Grove Drive, Pasadena, CA 91109, USA.

2. Canada Centre for Remote Sensing, Applications Division, 588 Booth Street, Ottawa, Ontario K1A 0Y7, Canada.

3. Code 971, Oceans and Ice Branch, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA.

4. SAIC General Sciences Corporation, 4600 Powder Mill Road, Beltsville, MD 20705–2675, USA.

5. Institute for Geophysics, University of Texas at Austin, 4412 Spicewood Springs Road #600, Austin, TX 78759, USA.

Abstract

Interferometric RADARSAT data are used to map ice motion in the source areas of four West Antarctic ice streams. The data reveal that tributaries, coincident with subglacial valleys, provide a spatially extensive transition between slow inland flow and rapid ice stream flow and that adjacent ice streams draw from shared source regions. Two tributaries flow into the stagnant ice stream C, creating an extensive region that is thickening at an average rate of 0.49 meters per year. This is one of the largest rates of thickening ever reported in Antarctica.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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