Collaborative Research: New Applications of AVHRR to the Study of Small Scale Ice Sheet Surface Morphology: A Window on Regional Ice Dynamics

该奖项是对一项为期两年的数据累积开发合作计划的支持，该计划是一项进一步利用先进的甚高分辨率辐射计(AVHRR)传感器数据的有利特性(特别是其高无线电测量灵敏度)来绘制极地冰盖表面特征的技术。这项工作将侧重于量化当地地表起伏和完善绿地和南极洲两个重点地区的现有地形数据。虽然这里没有提出实地工作，但这项工作对格陵兰东北部、西伯利亚海岸冰流和西南极冰分水区的预期实地活动具有潜在的重要意义。大冰盖内部的形态和冰动力学特征是深部冰芯钻探选址的重要组成部分。

This award is for support for a two year collaborative program for the development of data cumu-lation, as a technique to further exploit the favorable characteristics (in particular its high radio-metric sensitivity) of the Advanced Very High Resolution Radiometer (AVHRR) sensor data for mapping surface features on the polar ice sheets. The work will focus on the quantification of local surface relief and on the refinement of existing topographic data over the two focus areas of Green-land and Antarctica. Although no field work is proposed here, this work is potentially important to anticipated field activity in northeast Greenland, the Siple Coast ice streams and the ice divide area in West Antarctica. Characterization of the morphology and ice dynamics of the interior of large ice sheets is an important component of site selection for deep ice-core drilling.