THE STUDY OF THE YELLOW SEA WARM CURRENT AND ITS SEASONAL VARIABILITY  

作　　者：XU Ling-ling WU De-xing LIN Xiao-pei MA Chao 

机构地区：[1]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China

出　　处：《Journal of Hydrodynamics》2009年第2期159-165,共7页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Basic Research Program of China (973 programs, Grant Nos.2005CB422303, 2007CB411804);the National Natural Science Foundation of China (Grant No. 40706006);the Key Project of International Science and Technology Cooperation of China (Grant No.2006DFB21250);the 111 Project (Grant No.B07036).

摘　　要：The Yellow Sea Warm Current （YSWC） penetrates northward along the Yellow Sea Trough, and brings warm and saline water towards the Bohai Sea. The YSWC becomes much less intrusive in summer and is limited mostly in the southern trough, contrasting with a deep winter penetration well into the trough. The seasonal variability of the YSWC has prompted a debate regarding which controls the YSWC and its seasonal variability. In this article, the annual mean and seasonal variability of the YSWC was examined by using a 3-D ocean model together with several experiments. The results show that in the annual mean the YSWC is a compensating current firstly for the southward Korea Coastal Current （KCC）, which is mainly caused by the Kuroshio Current （KC）. The local wind-stress forcing plays an important but secondary role. However, the local monsoonal forcing plays a prominent role in modulating the seasonal variability. A deep northwestward intrusion of the YSWC in winter, for instance, is mainly due to a robustly developed China Coastal Current （CCC） which draws water along the Yellow Sea trough to feed a southward flow all the way from the Bohai Sea to the Taiwan Strait.The Yellow Sea Warm Current （YSWC） penetrates northward along the Yellow Sea Trough, and brings warm and saline water towards the Bohai Sea. The YSWC becomes much less intrusive in summer and is limited mostly in the southern trough, contrasting with a deep winter penetration well into the trough. The seasonal variability of the YSWC has prompted a debate regarding which controls the YSWC and its seasonal variability. In this article, the annual mean and seasonal variability of the YSWC was examined by using a 3-D ocean model together with several experiments. The results show that in the annual mean the YSWC is a compensating current firstly for the southward Korea Coastal Current （KCC）, which is mainly caused by the Kuroshio Current （KC）. The local wind-stress forcing plays an important but secondary role. However, the local monsoonal forcing plays a prominent role in modulating the seasonal variability. A deep northwestward intrusion of the YSWC in winter, for instance, is mainly due to a robustly developed China Coastal Current （CCC） which draws water along the Yellow Sea trough to feed a southward flow all the way from the Bohai Sea to the Taiwan Strait.

关 键 词：Yellow Sea Warm Current （YSWC） KUROSHIO local wind MONSOON 

分 类 号：P433[天文地球—大气科学及气象学] S154.3[农业科学—土壤学]