Department of Earth System Science, University of California Irvine, Irvine, CA 92697, USA.
Science. 2011 Sep 9;333(6048):1427-30. doi: 10.1126/science.1208336. Epub 2011 Aug 18.
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.
我们呈现了一个参考性的、全面的、高分辨率的、由 2007 年至 2009 年国际极地年期间获取的多颗卫星干涉合成孔径雷达数据拼接而成的南极洲冰流数字镶嵌图。这些数据揭示了整个南极洲范围内广泛存在的、有规律的、增强的冰流模式，以及延伸到内陆数百至数千公里的支流冰川。这种对冰盖运动的观察强调了基底滑移主导的支流流动相对于变形主导的冰流流动的重要性，重新定义了我们对冰盖动力学的理解，并对冰盖演化的重建和预测具有深远的影响。
