江南地区夏季气温异常与全球海温异常的相关关系

Summer Temperature Anomalies in Southern China in Relation to the Global Abnormal Sea Surface Temperatures

利用1951年1月—1999年12月中国160站的气温资料和1950年1月—1998年12月海温资料,寻求影响江南地区夏季气温异常的海温关键区和关键时段。通过对江南地区近50a夏季的标准化气温距平与全球前一年1—12月各月的海温距平求相关,发现热带大西洋中部在前一年10月开始到当年2月存在一个相关系数较高的海区,影响着江南夏季的气温异常。

In the context of the temperature data at 160 stations(1951-01—1999-12) in China and the sea surface temperature(SST) data(1950-01—1998-12),the correlation coefficients between the summer temperature' s standardization anomaly of Jiangnan and the global SST anomaly from previous January to this year's December are calculated.Results reveal that there is a higher correlation coefficient sea area in the middle of the tropical Atlantic ocean,its SST in previous October to this year's February significantly influences the next summer temperature anomaly in Southern China.