【摘要】 运用三维数值模型，首先计算了夏季风和台湾暖流引起的东海沿岸上升流。结果表明，风和台湾暖流的作用都可产生顺岸呈带状分布的上升流，风生上升流在２０ｍ至３０ｍ水层速度较大，其值一般为１．０×１０－３ｃｍ／ｓ；而台湾暖流形成的上升流则在３０ｍ以下速度较大，其值在浙南和闽北一般为１．０×１０－３ｃｍ／ｓ，在舟山近海为０．５×１０－３ｃｍ／ｓ。此外，运用Ｅｕｌｅｒｉａｎ－Ｌａｇｒａｎｇｉａｎ方法数值探讨了东海沿岸上升流区海水的源地。逆追踪结果表明，潮因子和风因子对沿岸上升流的贡献都是局地的，即仅能将上升流区附近下层的海水带到沿岸上层；台湾暖流则可将台湾海峡北口的深层水带到闽浙沿岸上层，使闽浙沿岸出现低温、高盐水。更多还原

【Abstract】 The wind and TWC driven upwelling in the coastal areas of the East China Sea is computed based on a three dimensional numerical model. It is found that there exist wind and TWC driven upwelling stripes off Fujian and Zhejiang, and the computed largest wind driven upwelling, 1.0×10 -3 cm/s, occurs between 20 and 30m, and the computed largest TWC driven upwelling, 1.0×10 -3 cm/s, occurs below 30m. In addition, the source of the upwelling is discussed by using the Eulerian Lagrangian method.更多还原