对1968年1月到2007年12月中国东南沿海(17°N～30°N,109°E～123°E)上升流指数月平均数据进行分析,结论如下:(1)风生沿岸上升流主要在4-8月间发生于海南岛东部、雷州半岛东部、汕头以北至浙江沿岸.(2)风生沿岸上升流的强度具有时空分布变化特征,其中海南岛东部沿岸上升流最强,浙江沿岸其次;整个中国东南沿岸强度较大的风生上升流发生在6-8月.(3)风生上升流的"成长期"长于"衰减期";与海南岛东部相比,浙江沿岸风生上升流出现早,消失早.(4)海南岛东部、汕头、闽南及浙江沿岸风生上升流有逐年增大的趋势.(5)闽中以南风生上升流的显著周期为1年和半年,闽中以北为1年和4个月,过渡的闽中地区为1年、半年和4个月.%In this paper, the characteristics of wind-driven coastal upwelling off the southeastern China coast are analyzed using CUI (Coastal Upwelling Index). The following results are obtained: (1) There exists wind-driven coastal upwelling in summer off the eastern Hainan Island and the Leizhou Peninsula, and from Shantou to Zhejiang.(2) The wind-driven coastal upwelling of the eastern Hainan Island is stronger than that of the others; and the upwelling is stronger during June to August. (3) Wind-driven coastal upwelling off Zhejiang appears earlier than that off the eastern Hainan Island. (4) Wind-driven coastal upwelling off the eastern Hainan Island, Shantou and Zhejiang has a trend of intensification. (5) The wind-driven coastal upwelling off the central and southern Fujian coast as well as Guangdong and eastern Hainan Island coast has two significant periods (one year and half a year); the upwelling has two periods (one year and four months) off the northern Fujian coast and Zhejiang coast; and the upwelling off central Fujian coast has three periods (one year, half a year and 4 months).
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