不同风场数据集对台风期间海浪模拟的影响  

Performance assessment of different wind forcing datasets for simulation of wind wave during typhoon

作　　者：李新文 丁骏[2] 黄君宝 员鹏 谢东风 LI Xinwen;DING Jun;HUANG Junbao;YUAN Peng;XIE Dongfeng(Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310020,China;Marine Monitoring and Forecasting Center of Zhejiang,Hangzhou 310007,China)

机构地区：[1]浙江省水利河口研究院(浙江省海洋规划设计研究院),浙江杭州310020 [2]浙江省海洋监测预报中心,浙江杭州310007

出　　处：《水利水运工程学报》2021年第6期34-42,共9页Hydro-Science and Engineering

基　　金：浙江省水利厅计划项目(RA2004);浙江省省属科研院所扶持专项(海岸A21003)。

摘　　要：风场资料的精度和适用性对海浪的准确模拟至关重要。选取ERA5、CCMP和CFSv2等3个常用的风场数据集,以2106号“烟花”台风为例对比不同数据集在台风浪模拟方面的表现。结果表明,采用3个风场的模拟结果均很好地再现了台风期间海浪的增长和衰减过程,其中ERA5和CCMP风场计算的波高较为一致,而采用CFSv2风场的模拟结果明显大于另2个风场。选取4个外海浮标站,对比3个风场的模拟结果与实测波高的差异。统计发现,ERA5风场的模拟结果最优,CCMP风场的模拟结果次之,而CFSv2风场的模拟结果较实测值偏大。在过程最大波高的模拟精度方面,CCMP风场的模拟结果最优,ERA5风场的模拟结果在台州外站明显偏小,而CFSv2风场计算的4个浮标站的过程最大波高均高于实测值。Wind field plays a significant role in wave modeling.ERA5,CCMP and CFSv2 were selected to assess their performance in the simulation of wind wave during Typhoon In-Fa.All of the three wind datasets were proved to be able to capture the trend of wave growing and damping.Wave height output of CFSv2 was generally larger than that of ERA5 and CCMP.Statistical parameters of MAE,RMSE and IA were adopted to evaluate the model results with field measurement from four wave buoys.The statistics demonstrated that ERA5 wind data performed best,which was followed by CCMP wind data.Whereas model results of CFSv2 were generally larger than measurements.The CCMP wind data performed best in capturing the peak wave height,followed by ERA5.

关 键 词：风场数据集 ERA5 CCMP CFSv2 SWAN海浪模型 

分 类 号：P731.22[天文地球—海洋科学]