海洋卫星雷达测高技术进展  

Advance in Ocean Satellite Radar Altimetry Technology

作　　者：许可 蒋茂飞 XU Ke;JIANG Maofei(National Space Science Center,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]中国科学院国家空间科学中心,北京100190

出　　处：《空间科学学报》2023年第6期1036-1057,共22页Chinese Journal of Space Science

基　　金：国家自然科学基金项目资助(41906199)。

摘　　要：雷达高度计是一种主动式的微波遥感器,可以提供全球海面高度、有效波高和海面风速数据,利用雷达高度计测得的数据可以进一步用于海洋动力学、海面地形、海洋重力异常和海底地形等方面的研究。经过近50年的发展,雷达测高技术已取得巨大进展,从载荷设计、数据处理到实际应用都积累了大量成果,雷达测高数据不仅用于海洋研究,还广泛用于内陆水域水位变化、海冰厚度变化、冰川质量平衡和异常气候影响等方面研究。本文根据雷达测高技术的基本原理,分析了海洋卫星雷达测高技术发展的现状,并对未来的发展进行了展望。Radar altimeter is an active microwave remote sensor,which is able to provide global Sea Surface Height(SSH),Significant Wave Height(SWH)and sea surface wind speed measurements.Radar altimetry data can be further used for study of ocean dynamics,sea surface topography,marine gravity anomalies,seafloor topography,global and regional sea level changes,etc.After decades of development,satellite radar altimetry has made great progress,from instrument design,data processing to application.Up to now,more than 20 radar altimetry satellites have been launched in the world.Radar altimetry da-ta can be used not only for oceanographic research,but also widely used for inland water level changes,sea ice thickness changes,glacier mass balance and abnormal climate impacts.This paper mainly ana-lyzes the basic principles,current development status and typical applications of satellite radar altime-try technology,and presents the prospects for future development.

关 键 词：海洋卫星 卫星测高 雷达高度计 海面高度 

分 类 号：P414[天文地球—大气科学及气象学]