不同风应力拖曳系数对北海区台风风暴潮模拟精度的影响  

Effects of Different Wind Stress Drag Coefficients on Simulation Accuracy of Typhoon Storm Surge in Beihai Region

作　　者：李庆杰 洪新[1] 曹雪峰[2] 尹磊 李鹏宇 毛雪莲 曹海洋 LI Qingjie;HONG Xin;CAO Xuefeng;YIN Lei;LI Pengyu;MAO Xuelian;CAO Haiyang(Yantai Marine Environmental Monitoring Center Station,State Oceanic Administration,Yantai Shandong 264006,China;National Marine Environmental Monitoring Center,Dalian Liaoning 116023,China;Yantai Coastal Zone Geological Survey Center,China Geological Survey,Yantai Shandong 264000,China)

机构地区：[1]国家海洋局烟台海洋环境监测中心站,山东烟台264006 [2]国家海洋环境监测中心,辽宁大连116023 [3]中国地质调查局烟台海岸带地质调查中心,山东烟台264000

出　　处：《海南热带海洋学院学报》2023年第2期92-100,共9页Journal of Hainan Tropical Ocean University

基　　金：自然资源部北海局海洋科技项目(201914);山东省海洋生态环境与防灾减灾重点实验室开放基金项目(202005)。

摘　　要：使用FVCOM 4.1版本非结构网格数值模型,建立包含北海区的东中国海风暴潮数值模拟系统。选取了3次台风过程,分别为9711、1109和1909号台风,分别对4种风暴潮模拟常用拖曳系数方案:Garratt、Smith、Large&Pond(FVCOM默认拖曳系数方案)、Sun,在无波浪作用和有波浪作用两种情况下对风暴潮增水进行模拟,确定适用于北海区台风风暴潮的最优拖曳系数方案。结果表明:4种方案中Large&Pond拖曳系数方案在北海区台风风暴潮模拟中表现最好;加入波浪作用可以提高风暴潮模拟精度。Using the FVCOM 4.1 unstructured grid numerical model,a numerical simulation system for storm surges in the East China Sea including the Beihai area was established to evaluate the accuracy of typhoon storm surge simulation.Three typhoon processes—Typhoon 9711,1109 and 1909—were selected,and four commonly used drag coefficient schemes for storm surge simulations—Garratt,Smith,Large Pond(the default drag coefficient scheme of FVCOM)and Sun—were simulated,respectively,with regard to their storm surge water increase under two conditions—no wave action and wave action—to determined the optimal drag coefficient scheme suitable for the key research sea areas.The results show that:1)the drag coefficient scheme of Large Pond performed best in the typhoon storm surge simulation in the North Sea;2)considering the wave effect can improve the storm surge simulation accuracy.

关 键 词：FVCOM 拖曳系数 台风风暴潮 

分 类 号：P731.2[天文地球—海洋科学]