2010年4月辽宁省气温异常偏低成因初探

Discussion on the Cause of Anomalous Lower Air Temperature in Liaoning Province in April of 2010

利用辽宁省53个台站1961～2010年4月气温资料和国家气候中心下发的500hPa高度场及海温资料,分析了2010年4月气温与同期海温及500hPa高度场的特点。结果表明,2010年4月辽宁省气温异常偏低,主要是北极涛动异常引起,从而为短期气候预测提供科学依据。

By using the air temperature data at 53 stations of Liaoning Province in April during 1961-2010 and the data of 500 hPa height field and sea surface temperature issued by National Climate Center,the characteristics of air temperature,sea surface temperature and 500 hPa height field in April of 2010 were analyzed.The results showed that the anomalous low temperature in April of 2010 was mainly caused by Arctic oscillation anomalies,so as to provide scientific basis for short-term climate prediction.