Abstract:

At present,it becomes a research hotspot in the world to study the changes of elevation and mass balance of polar ice sheets by satellite altimetry.This paper firstly introduces the IC- ESat mission,including system construction,basic principle,and data products etc.Then combined with the topic and specific mission of polar research,it summarizes the advantages of the satellite laser altimetry in studying the ice changes.This is a preparation for the further study of the changes of polar ice sheets with multiplicate satellite data.