台风“苏力”(2013)期间海洋上层温、盐及海平面异常变化特征  

Changes in Upper Ocean Temperature,Salt and Sea level During Typhoon SOULIK(2013)

作　　者：牟平宇 林霄沛[2] MU Pingyu;LIN Xiaopei(Ocean University of China,Qingdao 266100,China;Physical Oceanography Laboratory,Ocean University of China,Qingdao 266100,China)

机构地区：[1]中国海洋大学,山东青岛266100 [2]中国海洋大学物理海洋实验室,山东青岛266100

出　　处：《海洋湖沼通报》2018年第3期1-11,共11页Transactions of Oceanology and Limnology

摘　　要：台风"苏力"是2013年最强的台风之一。本文利用再分析资料、卫星遥感资料及ARGO浮标数据等分析了台风过境所引起的海表面温度(SST)、海表面高度异常(SLA)以及海洋次表层温、盐的变化规律,给出了上层海洋对台风响应的基本特征。台风所经过的海域都存在着明显的降温,在冷涡区域引起了6~7℃的海表温度的冷却,降温区域集中在路径的右侧。台风造成SLA降低,最大为20cm左右。海表温度的变化滞后于海面高度的变化。ARGO浮标数据显示,台风引起了海面的显著降温,最大降温幅度为5℃,位于冷涡内,且位于路径的右侧。路径左侧的SST的降低相对较小,为1.5~2.5℃。台风的扰动导致次表层水涌升到表层,改变了表层的盐度和密度,引起混合层加深。Typhoon Soulik is one of the strongest typhone in 2013.In this paper,reanalysis data,satellite remote data,and Argo data are used to analyze the changes of SST,SLA,temperature and salt in the subsurface of ocean when typhoon passed.The basic characteristics of the upper ocean response to the typhoonare showed.Obvious decrease of temperature is captured in the area after typhoon passes.In the cold eddy area,the 6-7℃ degree cooling of SST is observed,and the cooling mainly in the right of the typhoon routine.The reduction of the SLA caused by typhoon is upto 20cm.The changes of SST lags behind the changes of SLA.Argo data shows that the typhoon causes the surface cooling significantly in the cold eddy area.The maximum cooling is up to 5℃ in the right of the routine.Relatively, the cooling in the left of the routine is only 1.5-2.5℃.Disturbance of typhoon can cause the subsur- face water upwelling to the surface,change the surface salinity and density,and thus themixed layer is deepen.

关 键 词：台风 SST SLA ARGO 

分 类 号：P732.6[天文地球—海洋科学]