上海市奉贤区1960～2009年气温与降水量变化特征

Change Characteristics of Temperature and Rainfall in Shanghai Fengxian Area from 1960 to 2009

利用1960～2009年上海市奉贤区的气象资料,分析了50年气温、降水量的变化特征.结果表明:奉贤区年平均气温增温率为0.25℃/10 a,主要由冬季、春季增温引起,尤其20世纪80年代中期开始气温突增,远高于全球气温增温速率;降水量从20世纪80年代开始增多,呈现弱的5年周期.

The characteristics of temperature and rainfall in the last 50 years were analyzed based on the meteorologica1 data of the Shanghai Fengxian area.The results show that the annual mean temperaure respectively increased with a tendency raio of 0.25℃/10 a and mainly by the winter,the spring warms causes.The temperature raised an abrupt change in the middle of 1980s and higher than the global temperature warming speed far.The precipitation starts from 1980s to increase and presents the weak five annual periods.