1957—2012年瓦房店市气温和降水量变化特征分析

Analysis on Characteristics of Air Temperature and Precipitation Variation from 1957 to 2012 in Wafangdian City

利用瓦房店市1957—2012年常规气象资料,分析了瓦房店市气温和降水量的变化特征。结果显示:瓦房店市年平均气温呈明显上升趋势,而年平均气温上升主要来自春季和冬季升温的贡献;年平均最低气温的升温幅度大于年平均最高气温的升温幅度;年平均气温在1988年发生突变。年降水量呈上升趋势;春季降水量呈上升趋势,其余3个季节降水量均呈下降趋势;月降水量差异明显。

According to the routine meteorological data of Wafangdian City from 1957 to 2012 ,the variation of the temperature and precipitation in Wafangdian City was analyzed.The results showed that the annual average temperature in Wafangdian City was on the rise tendency as a result from the contribution of the temperature rise in spring and summer.It also showed that the rise range of the annual average minimum of temperature was more than that of the annual average maximum temperature.Besides,the sudden change of the annual average temperature happened in 1988.The annual precipitation was on the rise tendency.The precipitation in spring was on the increase and that in the other seasons was on the decrease.The differences of the monthly precipitation were obvious.