卫星高度计反演海面风速——模式函数与应用实例

陈戈

doi:10.11834/jrs.19990410

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卫星高度计反演海面风速——模式函数与应用实例
On Retrieving Sea Surface Wind Speed from Satellite Altimeters: Model Functions and an Application Case
1999年第4期页码：305-311
纸质出版：1999
DOI： 10.11834/jrs.19990410
稿件说明：

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[1]陈戈.卫星高度计反演海面风速——模式函数与应用实例[J].遥感学报,1999(04):305-311+325. DOI： 10.11834/jrs.19990410.

CHENGe. On Retrieving Sea Surface Wind Speed from Satellite Altimeters: Model Functions and an Application Case[J]. Journal of Remote Sensing, 1999, (4): 305-311. DOI： 10.11834/jrs.19990410.

摘要

对迄今为止国际上公开发表的１４种卫星高度计反演海面风速的模式函数进行了系统的分析和比较。在此基础上提出了一种“折中”模式函数，用于ＴＯＰＥＸ资料海面风速反演效果良好。文中对高度计获取的全球海面风速分布特征进行了分析，最后探讨了改善海面风速模式函数反演精度的途径。

Abstract

This paper presents a detailed analysis and comparison of14 modelfunctions

published in the open litera ture

forretrievingseasurface wind speedfrom satellite altimeters.Theaccuracyofthese modelfunctionsarefoundto be within 1 .5 —2 .5m/sin general. Moreover

the modelfunctions appearto converge around 7m/s

correspondingto the peak ofthe wind speed probability density function .An “intermediate”modelfunctionissubsequently proposed and ap plied to derive sea surface wind speedfrom TOPEXaltimeter data

yieldinginterestingresults.The characteristicsof al timeter

erived globalsea surface wind speed are described and potential approachesforimprovingthe accuracy of wind speed modelfunctions are discussed .Theimportance of abnormal atmospheric process

such asrain effect

on altimeter wind speed retrievalis also stressed .