摘要
从理论上分析了海冰厚度的微波测量原理 ,介绍了测量海冰厚度的理论模型 ,给出了海冰介电常数的计算公式 ,微波辐射计测量海冰厚度的计算机自动处理系统及方法 ,并且将理论数据与实际测量数据进行比较 。
In recent years, microwave radiometry has been developed as a powerful technique for remote Sensing of Sea ice in China. Since 1986 the thermal emission from sea ice in Liaodong Bay and Bohai Bay has been measured by multi frequency microwave radiometers designed by Changchun Institute of Geography, Academia Sinica. The paper analysizes the microwave measurement principle of sea ice thickness, introduces the model of theory about its measurement and provides the calculation formulation for sea ice radiation constant as well as the process of microwave radiometer data. The relationship between brightness temperature and sea ice thickness, salinity, temperature, frequency, polarization, etc, has been experimentally obtained. In the end, it introduces the Computer automatical process system of measurement of sea ice thickness, compares the result of theoretical calculation with the ones of practical measurement, and almost obtains the same result.
出处
《遥感学报》
EI
CSCD
2000年第2期112-117,共6页
NATIONAL REMOTE SENSING BULLETIN
基金
国家自然科学基金资助项目!( 4 92 762 76)
关键词
微波遥感
海冰厚度
应用研究
无源微波遥感
microwave remote sensing
measurement of sea ice thickness
applied research
