南海与邻近海洋的水通量交换

Water Transport Exchange Between the South China Sea and Its Adjacent Seas

利用一个局地加密的全球海洋环流模式,给出位于细网格海域的南中国海与其邻近海洋之间水交换的年平均和月变化的定量结果。结果表明,南海与周围海洋交换的水通量受南海季风的影响较大,其中吕宋海峡的交换量最大,其次为南海南部边界的断面,再者依次为台湾海峡、民都洛海峡和巴拉巴克海峡。另外还对南海各个海峡的热通量、盐通量进行了估算。

A global ocean circulation model with locally refined grids is used to give a quantitative result for the annual and monthly mean water transport exchanges between the South China Sea and its adjacent seas. It is shown from the computed results that the water transport exchanges between the South China Sea and its adjacent seas are affected greatly by the monsoon, among them, the water exchange through the Luzon Strait is the largest, that through the section at the southern boundary of the South China Sea is the next largest, and those through the Taiwan Strait, the Mindoro Strait and the Balabac Strait decrease in turn. In addition, the heat transports and salt transports through different straits of the South China Sea are estimated as well.