WAIS Ice Divide Migration

该奖项支持一个项目，该项目使用机载冰穿透雷达和地形信息绘制阿蒙森海和罗斯湾之间分水岭的内部分层图，以寻找分水岭迁徙的证据。如果坍塌已经进行了一段时间，应该可以从分层的扭曲中检测到。该项目将使用航空地球物理研究支持办公室(SOAR)双水獭飞机来绘制跨越分水岭的流线上的冰。这些数据将与冰流模型结合使用，以推断冰分水岭的迁移历史，获得有关计划中的穿越路线的最近积累速度的信息，并将为内陆西南极冰盖冰芯项目提供有关时间尺度和层厚的重要信息。

This award supports a project to use airborne ice penetrating radar and topographic information to map internal layering of the divide zone between the Amundsen Sea and Ross Embayment to search for evidence of divide migration. If collapse has been in progress for some time, it should be detectable in distortions of the layering. The project will use the Support Office for Aerogeophysical Research (SOAR) Twin Otter aircraft to map the ice along flow lines which cross the divide. The data will be used together with ice flow models to infer an ice divide migration history, obtain information about recent accumulation rate over planned traverse routes and will provide important information on time scale and layer thickness for the inland West Antarctic ice sheet ice coring project.