基于Delft3D模型的风暴潮增减水模拟研究——以“9711”号台风为例  

A Numerical Simulation of Storm Surge With Delft3D Model:A Case Study of Typhoon Winnie

作　　者：朱磊[1,2] 刘会欣 ZHU Lei;LIU Huixin(Qinhuangdao Mineral Resource and Hydrogeological Brigade,Hebei Geological Prospecting Bureau,Qin huangdao,Hebei 066000,China;Hebei Center of Marine Geological Resources Survey,Qinhuangdao,Hebei 066000,China)

机构地区：[1]河北省地矿局秦皇岛矿产水文工程地质大队,河北秦皇岛066000 [2]河北省海洋地质资源调查中心,河北秦皇岛066000

出　　处：《海洋湖沼通报》2018年第5期1-10,共10页Transactions of Oceanology and Limnology

基　　金：河北省科学技术研究与发展计划(11276709D);基础勘查项目冀海涵[2015]98号资助

摘　　要：为了精确模拟"9711"号台风期间风暴潮增减水过程,考虑耦合作用下的非线性,利用Delft3D建立三维天文潮和风暴潮耦合模型,利用实测数据进行了验证,探究了台风经过日照港时风暴潮增减水过程。结果表明:(1)"9711"号台风引起的风暴潮增减水位呈现周期性变化,其变化周期与天文潮周期相近;(2)风暴潮期间,日照港西南侧海域增减水幅度较大,增水时,NE流向与SW流向的潮流在该区域相遇叠加,使增水幅度加重,减水时,该区域潮流由SW向NE流动,使减水幅度加重;(3)非线性引起的水位变化在风暴潮的水位变化过程中起负相关作用。In order to inspect the wave setup/setdown of storm surge,Typhoon Winnie(NO.9711)was simulated by Delft3D model,which included the nonlinear interaction during the comparing.A three dimensional astronomical tide-storm surge coupling model was built.The numerical results were verified by observed data.Based on the numerical simulation,the following results were obtained:(1)the water level presented a periodic fluctuation,which showed a period close to the astronomical tidal period during the Typhoon Winnie;(2)from the spatial distribution,wave setup and down varied intensely at southeast sea of Rizhao Port.The tidal current increasing water level during the directions NE and SW was superimposed at this zone as water level deceased the tidal current from SW to NE;and(3)the fluctuation of water level caused by nonlinear correlated negatively during the storm surge.

关 键 词：Delft3D 三维耦合模型 “9711”号台风 风暴潮 增减水 

分 类 号：P435[天文地球—大气科学及气象学]