An examination of multi-frequency microwave radiomtry for probing subsurface ice sheet temperature
An examination of multi-frequency microwave radiomtry for probing subsurface ice sheet temperature
复制标题
多频微波辐射测量探测地下冰盖温度的检验
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
L. Tsang
中科院分区：
文献类型：
--
作者：
M. Aksoy;J. Johnson;K. Jezek;Mchael Durad;M. Drinkwater;Govanni Macellonf;L. Tsang
许多描述冰盖动力学的量可以通过遥感测量。然而，地下冰盖温度是一个非常重要的参数，部分决定内部变形和冰流，目前无法远程测量。直接知识只能通过少量钻孔的测量来获得。本文提出了利用 0.5-2GHz 频段的微波辐射测量来探测地下冰盖温度的概念。回顾了冰盖地球物理特性和由此产生的微波发射，并描述了地下冰盖温度的初始反演算法。最后总结了实现所提出的测量的超宽带辐射计设计。
Many quantities describing ice sheet dynamics can be measured via remote sensing. However, subsurface ice sheet temperature, a very important parameter which determines in part internal deformation and ice flow, is not currently measured remotely. Direct knowledge is available only through measurements from a small number of boreholes. This paper presents the concept of utilizing microwave radiometry in the 0.5-2GHz frequency band to probe subsurface ice sheet temperatures. Ice sheet geophysical properties and the resulting microwave emission are reviewed, and an initial retrieval algorithm for subsurface ice sheet temperatures is described. Finally an ultrawideband radiometer design to realize the proposed measurements is summarized.