黄海暖流的路径及机制研究

The path and mechanism of the Yellow Sea Warm Current

利用NASA/AVHRR反演的每日海表面温度资料,法国航天局AVISO发布的海表面高度资料,中国气象科学数据共享服务网成山头台站的日均风场资料,首先对黄海海表面温度分布进行了分析,揭示了表征黄海暖流的暖水舌存在两个分支。然后对1981年10月～2010年5月这两个分支发生情况进行了统计,得出两个分支并不是个别年份所特有的,而是具有一定的普遍性。最后通过相关性分析,并结合黄海不同区域海表面高度的相对变化,认为西北向分支、北向分支,是通过风生增减水引起海表面高度局部差异来提供驱动力的,具有补偿性质。

Based the daily sea surface temperature data （SST） of NASA/AVHRR, sea surface height （SSH） data from AVISO, and the wind data of Chengshantou station from China Meteorological Data Sharing Service System, we identified two warm water tongue branches appear when the Yellow Sea Warm Current （YSWC） intruded into the Yellow Sea according to the analysis of SST distribution. Furthermore, the statistical results revealed that these two branches were present from 1981 to 2010, but not a temporal phenomenon. The correlation analysis and the variation of local SSH of the Yellow Sea indicate the Yellow Sea Warm Current northwest and north branch which are driven by relative local SSH change caused by regional wind.