Ice Flow of the Antarctic Ice Sheet

被引：882

作者：

Rignot, E. ^{[1
,2
]}

Mouginot, J. ^{[1
]}

Scheuchl, B. ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91106 USA

来源：

SCIENCE | 2011年 / 333卷 / 6048期

关键词：

PINE ISLAND GLACIER; RADAR INTERFEROMETRY; EAST ANTARCTICA; MOTION; BASAL;

D O I：

10.1126/science.1208336

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We present a reference, comprehensive, high-resolution, digital mosaic of ice motion in Antarctica assembled from multiple satellite interferometric synthetic-aperture radar data acquired during the International Polar Year 2007 to 2009. The data reveal widespread, patterned, enhanced flow with tributary glaciers reaching hundreds to thousands of kilometers inland over the entire continent. This view of ice sheet motion emphasizes the importance of basal-slip-dominated tributary flow over deformation-dominated ice sheet flow, redefines our understanding of ice sheet dynamics, and has far-reaching implications for the reconstruction and prediction of ice sheet evolution.

引用

页码：1427 / 1430

页数：4

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