中国近海ASCAT和ERA-Interim风场资料的评估  

Evaluation of ASCAT and ERA-Interim wind data over China offshore seas

作　　者：柳婧 宋晓姜[1] 王彰贵[1] LIU Jing;SONG Xiao-jiang;WANG Zhang-gui(National Marine Environmental Forecasting Center,Beijing 100081 China)

机构地区：[1]国家海洋环境预报中心,北京100081

出　　处：《海洋预报》2019年第1期10-19,共10页Marine Forecasts

基　　金：国家重点研发计划(2018YFC1407001)

摘　　要：利用中国近海23个浮标对2015年一整年的ASCAT轨道风场和ERA-Interim再分析风场进行质量评估,并对比了ERA-Interim和CFSV2两种再分析风场资料在中国近海的适用性。结果表明:ASCAT在中国近海与浮标风速的一致性优于ERA-Interim,而二者与浮标风向的一致性则相差不大。同时,对比CFSV2与ERA-Interim的误差统计结果发现,CFSV2的风速误差较ERAInterim略小,风向误差相差不大。In this paper,we evaluate the quality of ASCAT orbital and ERA-Interim reanalysis wind field in 2015 using 23 buoys deployed in China offshore seas,and also compare the suitability of ERA-Interim and CFSV2 reanalysis wind field data for China offshore sea.Compared with buoy observations,it is found that the wind speed of ASCAT is more consistent than that of ERA-Interim reanalysis,whereas the consistency of the two datasets shows no significant difference regarding wind direction.Comparing the error statistics of CFSV2 and ERA-Interim reanalysis,we also demonstrate that the wind speed error of CFSV2 is slightly smaller than that of ERA-Interim reanalysis,and the wind direction error is largely the same.

关 键 词：中国近海 海面风场 浮标 ASCAT风场 检验与评估 

分 类 号：P732.1[天文地球—海洋科学]