【作者】 郑沛楠； 吴德星； 陈学恩； 林霄沛；

【Author】 ZHENG Pei-nan WU De-xing CHEN Xue-en LIN Xiao-pei (Physical Oceanography Laboratory,Ocean University of China,Qingdao 266100,

【机构】 中国海洋大学物理海洋实验室；

【摘要】 采用 HYCOM 模式模拟了东中国海的三维水动力学和热力学结构,进而对台湾海峡海域进行了高分辨率嵌套模拟。分析了台湾海峡温度场的三维结构及其季节变化,并对温跃层的季节变化进行分析和讨论。研究表明,台湾海峡存在着较显著的季节性跃层,跃层的分布受大洋活动和近岸水体的共同影响。黑潮水系是影响台湾海峡跃层的重要的因子,并影响着峡区季节性跃层的强度变化。太阳辐射、径流冲淡和风搅拌等也影响着跃层的季节变化。更多还原

【Abstract】 Base on the Hybrid Coordinate Ocean Model (HYCOM),this paper simulates the three dimensional dynamic and thermo-logic structure of the East China Sea,then downscaling to the Talwan Strait.The three dimensional temperature field and its seasonal variation in Taiwan Strait as well as the seasonal variation of thermocline in this area were analzed and discussed.It is shown that HYCOM could better reproduce the ocean stratification and mixing.The analysis shows that it exits strong seasonal thermocline in Taiwan Strait;which can be seen as one of the noticeable hydrological phenomena there.Both the open ocean and the coastal water contribute to the thermocline’s formation and play an important role in its characteristics.The Kuroshio is a very important factor on the thermocline;it also contributes to thermocline’s seasonal variation.In addition to the solar radiation,fresh water flux and wind mixing,all the above mentioned factors work together leading to the existence and dissolve of the thermocline in Taiwan Strait.更多还原