海温对春季冷暖环流的遥相关及影响我国南方春温的过程

Teleconnection between SST and Cold/Warm Ocean Circulation and Impact of SST on the Temperature in Southern China during Spring

利用1950～1998年太平洋海温资料进行分析,得出太平洋海温对春季冷暖环流的遥相关,并得出海温影响大气冷暖环流的过程,进一步分析得到太平洋海温影响亚欧中高纬环流及西太平洋副高的时间。从而得出太平洋海温影响我国南方春温的过程为:前2年10月到前一年3月赤道东太平洋海温持续暖(冷)→前1年3月西太平洋副高持续强(弱)→春季冷暖环流指标强(弱),造成我国南方春温低(高)。最后利用相关密切的海温因子建立我国南方春温趋势的预报方程。这对我国广大科技工作者利用太平洋海温资料做我国南方春温趋势预报具有一定参考价值。

Using Pacific sea surface temperature（SST）from 1950 to 1998,the teleconnection between SST and cold/warm ocean circulation and the impact of SST on temperature were analyzed.The results show that the impact process is：SST continued to warm（cold）From Oct.2years ago to Mar.1 year ago →the Western Pacific subtropical high sustained strong（weak）in Mar.1 year ago→warm/cold spring ocean circulation index is strong（low）,resulting the spring temperature low（high）in Southern China.Finally,by selecting closely related to SST factors,the prediction equation of spring temperature is built up.