Collaborative Research: A Broadband Seismic Experiment to Image the Lithosphere Beneath the Gamburtsev Mountains and Surrounding Areas, East Antarctica

该奖项支持对甘布尔采夫冰下山脉(GSM)的地震学研究，甘布尔采夫冰下山脉是一个埋在东南极冰盖下的德克萨斯州大小的山脉。该项目将进行被动地震实验，在GSM上部署23个地震台，以表征地壳和上地幔的结构，并确定驱动隆起的过程。研究结果还将限制地面热通量，这是模拟冰盖形成和行为的关键变量。GSM几乎没有被开发过，它代表了地球上最大的未被研究的地壳隆起区域。此外，该地区也是南极冰盖生长的起点。由于这些悬而未决的问题，全球定位系统已被国际南极科学界确定为国际极地年(2007-2009年)的研究重点。除了这项地震实验，美国国家科学基金会还支持对全球移动通信系统进行的航空地球物理调查，获奖编号为0632292。该项目的主要国际合作伙伴包括德国、中国、澳大利亚和英国。有关更多信息，请参见IPY.org上的IPY项目#67。在更广泛的影响方面，该项目还支持博士后和研究生研究以及各种形式的外联活动。

AbstractThis award supports a seismological study of the Gamburtsev Subglacial Mountains (GSM), a Texas-sized mountain range buried beneath the ice sheets of East Antarctica. The project will perform a passive seismic experiment deploying twenty-three seismic stations over the GSM to characterize the structure of the crust and upper mantle, and determine the processes driving uplift. The outcomes will also offer constraints on the terrestrial heat flux, a key variable in modeling ice sheet formation and behavior. Virtually unexplored, the GSM represents the largest unstudied area of crustal uplift on earth. As well, the region is the starting point for growth of the Antarctic ice sheets. Because of these outstanding questions, the GSM has been identified by the international Antarctic science community as a research focus for the International Polar Year (2007-2009). In addition to this seismic experiment, NSF is also supporting an aerogeophysical survey of the GSM under award number 0632292. Major international partners in the project include Germany, China, Australia, and the United Kingdom. For more information see IPY Project #67 at IPY.org. In terms of broader impacts, this project also supports postdoctoral and graduate student research, and various forms of outreach.