ASCAT风场在南海的适用性分析  

Analysis of the Applicability of ASCAT-derived Wind Field in the South China Sea

作　　者：田光辉[1,2] 刘少军[1,2] 李伟光[1,2] 张国峰[1,2] 蔡大鑫[1,2] TIAN Guang-hui;LIU Shao-jun;LI Wei-guang;ZHANG Guo-feng;CAI Da-xin(Hainan Institute of Meteorological Sciences,Haikou 570203;Key Laboratory of Meteorological Disaster Prevention and Mitigation for South China Sea,Hainan Province,Haikou 570203)

机构地区：[1]海南省气象科学研究所,海南海口570203 [2]海南省南海气象防灾减灾重点实验室,海南海口570203

出　　处：《广东气象》2020年第5期39-43,共5页Guangdong Meteorology

基　　金：海南省气象科技创新项目(HNQXZD201409)。

摘　　要：利用南海浮标站检验了ASCAT风场产品的风速和风向的精度,利用海岛气象站资料与ASCAT风场产品做了对比分析。结果表明:ASCAT风场产品在南海反演精度高,风速平均绝对偏差为0.59 m/s,风向平均绝对偏差为16.23°。ASCAT风场产品与海岛站地面观测资料相关分析显示,风速相关系数在0.7左右,风向相关系数在0.5左右。The data of buoy stations in the South China Sea is used to test the accuracy of wind speed and direction of the wind field product by ASCAT and the data from the meteorological stations in Hainan Island are compared with the ASCAT-derived wind field product for analysis.The result is shown as follows.The ASCAT-derived wind field product has high retrieval accuracy for the South China Sea region with average absolute error at 0.59 m/s for wind speed and 16.23°for wind direction.As shown from a correlation analysis between the ASCAT-derived wind field product and surface observations from the island stations,the correlation coefficient is around 0.7 for the wind speed and around 0.5 for the wind direction.

关 键 词：海洋气象 ASCAT风场 风场产品 南海 

分 类 号：P714[天文地球—海洋科学]