Role of Stokes Drift in Ocean Dynamics Under Typhoon Conditions in the Bohai Sea

作     者：LI Haoqian WAN Kai WANG Menghan DENG Zeng’an CAO Yu LI Haoqian;WAN Kai;WANG Menghan;DENG Zeng'an;CAO Yu

作者机构：North China Sea Marine Forecasting CenterQingdao 266061China Shandong Provincial Key Laboratory of Marine Ecology and Environment&Disaster Prevention and MitigationQingdao 266061China North China Sea Offshore Engineering Survey InstituteQingdao 266061China School of Marine Science and TechnologyTianjin UniversityTianjin 300072China South China Sea Marine Forecasting CenterGuangzhou 510006China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2024年第23卷第1期

页      面：33-45页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：supported by the National Natural Science Foundation of China(No.42176020) the National Key Research and Development Program(No.2022 YFC3105002) 

主　　题：Stokes drift production Langmuir turbulence rurbulent mixing typhoon coupled model 

摘      要：The effect of Stokes drift production(SDP),which includes Coriolis-Stokes forcing,Langmuir circulation,and Craik-Lei-bovich vortexes,on the upper ocean during typhoon passage in the Bohai Sea(BS),China,is investigated by using a coupled wave-current *** role of SDP in turbulent mixing and the further dynamics during the entire typhoon period are comprehensively *** results show that SDP greatly increases turbulent mixing at all depths under typhoon conditions by up to seven times that under normal weather *** generally strengthens sea surface cooling by more than 0.4℃,with the maximum reduction in sea surface temperature(SST)at the during-typhoon stage exceeding 2℃,which is approximately seven times larger than that under normal weather *** SDP-induced decrease in current speed can exceed 0.2ms^(-1),and the change in current direction is generally opposite the wind *** results suggest that Stokes drift depresses the effect of strong winds on currents by intensifying turbulent *** layer depth(MLD)is distinctly increased by O(1)during typhoons due to SDP and can deepen by more than *** addition,the continuous effects of SDP on SST,current,and MLD at the after-typhoon stage indi-cate a hysteretic response between SDP and typhoon actions.