Remote Sensing of Sea Ice Thickness: A Proposal to Participate in the 1991 Antarctic Winter Cruise of the POLARSTERN

极地海冰覆盖厚度是大气与海洋能量交换的重要参数，也是全球气候变化的重要变量。目前确定冰层厚度的方法效率低，劳动强度大，需要引入遥感技术，但到目前为止还没有找到可行的测量方法。目前的研究计划将尝试一种新的技术，即观测海冰和下伏水面的超高频微波辐射的加权平均。UHF辐射计是从NASA兰利研究中心借来的，理论上有能力测量高达一米的海冰厚度，这超过了南极洲周围未变形的第一年冰的平均厚度。

The thickness of the polar sea ice cover is an important parameter in the exchange of energy between the atmosphere and the ocean, and may act as a significant variable in the variation of the global climate. Present methods for determining the ice thickness are so inefficient and labor-intensive that remote sensing techniques need to be introduced, however up to this time no feasible way to make the measurements has been found. The present research program will try out a new technique which observes the weighted average of the ultra-high frequency (UHF) microwave emission of the sea ice and the underlying water surface. The UHF radiometer, on loan from the NASA Langley Research Center has a theoretical capability to measure sea ice thickness up to one meter, which exceeds the average thickness of undeformed first-year ice around Antarctica.