中国工程科学Issue(7)：68-74,7.
HY-2A微波散射计风场反演算法
HY-2A microwave scatterometer wind retrieval algorithm
摘要
Abstract
The routine wind fields retrieval algorithm for China’s microwave scatterometer onboard HY-2A(HY2-SCAT)was developed. By introducing a two-step search schema into the wind retrieval process, which included a coarse-search and an optimal-search,the efficiency of wind retrieval was greatly improved. Cir-cular median filter was applied to remove the ambiguities,and the NCEP wind field was used as a background to re-initialized wind field consists of ambiguous wind vectors,so that the ambiguity removal skill can be largely enhanced. Wind vectors observed by HY2-SCAT were evaluated by comparison with NDBC buoy observations and ASCAT observations. The RMS difference was less than 2 m/s or less than 10%for the comparison of wind speeds and the RMS difference was less than 20 degree for the comparison of wind direction,which indicated that the wind products provided by HY2-SCAT can meet the requirements for science and routine meteo users.关键词
HY-2A/微波散射计/风场反演算法Key words
HY-2A/microwave scatterometer/wind fields retrieval algorithm分类
海洋科学引用本文复制引用
林明森,邹巨洪,解学通,张毅..HY-2A微波散射计风场反演算法[J].中国工程科学,2013,(7):68-74,7.基金项目
国家自然科学基金项目资助（41106152）；中国高技术研究发展计划（863计划）重点项目资助（2007AA092201；2008AA09A403）；卫星海洋环境动力学国家重点实验室开放研究基金资助（SOED1103）；国家海洋局青年海洋科学基金资助（2011414）；海洋公益项目自主海洋动力环境卫星微波遥感处理技术研究示范资助（201105032）；海洋公益项目HY-2A卫星海洋动力环境探测数据应用服务技术系统与示范资助 （）
