Sensitive study of the long and short surface wave-induced vertical mixing in a wave-circulation coupled model

作     者：ZHAO Chang 

作者机构：College of Physical and Environmental Oceanography Ocean University of China Qingdao 266100 China Key Laboratory of Marine Science and Numerical Modeling State Oceanic Administration Qingdao 266061 China First Institute of Oceanography State Oceanic Administration Qingdao 266061 China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2012年第31卷第4期

页      面：1-10页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：The"973"Project of China under contract No. 2010CB950300 the Project of the National Natural Science Foundation of China under contract Nos 40730842 and 41005032 the Scientific Research Foundation of the First Institute of Oceanography, State Oceanic Administration of China under contrat No. 2011T02 

主　　题：wave-induced mixing wave-circulation coupled model long surface wave-inducedmixing daily mean wave-induced mixing monthly mean wave-induced mixing 

摘      要：The previous studies by the MASNUM research team have shown the effectiveness of the wave- induced mixing （By） in improving the simulation of upper-ocean thermal structure. The mech- anisms of Bv are further investigated by incorporating different Bv products into the MASNUM wave-circulation coupled model. First, experiments were designed to explore the effects of By, which contain the contributions at different wave lengths （l）. The results of three experiments, the non-By case, the short-wave case （l 〈300 m）, and the long-wave case （l 〉300 m） are compared, and it is found that the long waves are the most important component for By to generate mixing in the upper ocean. As the swell plays dominant role in mixing, the parameterization of Bv into wind may be not a proper way. Second, Bv effects at different time-scales, including daily and monthly, were examined. The results show that the monthly averaged By has larger impact than the daily averaged Bv, especially in summer.