Sea ice concentration over the Antarctic Ocean from satellite pulse altimetry

作     者：YANG YuanDe E DongChen WANG ,HaiHong CHAO DingBo HWANG CheinWay LI Fei AI SongTao 

作者机构：Chinese Antarctic Center of Surveying and Mapping Wuhan University Wuhan 430079 China School of Geodesy and Geomatics Wuhan University Wuhan 430079 China Key Laboratory of Surveying and Mapping Technology on Island and Reef State Bureau of Surveying and Mapping Qingdao 266510 China Department of Civil Engineering 'National' Chiao Tung University Hsinchu Taiwan China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2011年第54卷第1期

页      面：113-118页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 08[工学] 081601[工学-大地测量学与测量工程] 0816[工学-测绘科学与技术] 

基　　金：supported by National Key Technology R & D Program (Grant No. 2006BAB18B01) the National Natural Science Foundation of China (Grant No. 40806076) Antarctic Exploration Fundamental Project (Grant No. 14699907111091) Chinese Polar Strategic Research Foundation (Grant No. 20080203) Key Laboratory of Surveying and Mapping Technology on Island and Reef of the State Bureau of Surveying and Mapping (Grant No. 2009B04) 

主　　题：sea ice concentration Antarctic altimeter waveform SSMR SSM/I ERS-1/GM 

摘      要：Sea ice concentration (SIC) is an important parameter in characterizing sea ice. Limited by the environment and the spatial extent of observation, it is difficult for field work to meet the needs of a large-scale SIC study. However, with its many advantages, such as the ability to make large-scale, high-resolution and long-duration observations, the altimeter can be used to determine SIC on a large scale. Using the correspondence between the satellite pulse altimeter waveform and reflector property, waveform classification is employed. Moreover, this paper develops an algorithm to obtain the SIC from altimeter waveforms. In an actual computation, Pyrz Bay in the Antarctic is taken as an experimental region, and one-year and seasonal SICs are derived from ERS-1/GM waveforms over this study area. Furthermore, altimetric SICs are compared with those of SSMR SSM/I. The results show that the spatial distribution and the regions of maximum SIC determined employing these two methods are consistent. This demonstrates that altimeter data can be used to monitor sea ice.