禹州气温变化特点及突变分析

Analysis of Temperature Change Character and Mutation in Yuzhou

选取禹州市1957 2006年的气温资料,对禹州市气温变化及特征进行了分析,结果表明:禹州50年年平均气温变化率为0.086℃/10 a。从气温变化特征可看出:年平均和平均最低气温呈上升趋势,年平均最高气温呈下降的趋势;冬季气温上升趋势明显,夏季增幅不明显;年平均最高、最低气温的变化具有明显的季节性特点;年平均和平均最低、最高气温变化均有明显的突变发生。

In this paper, the temperature change and its characteristics were analyzed by selecting the temperature data in Yuzhou from 1957 to 2006. The results showed that the annual mean temperature change rate is 0. 086 ℃/10a in the last 50 years in Yuzhou. From the temperature change character we can see that the annual mean and minimal temperature present a remarkable upward trend and the annual mean maximum temperature presents a downward trend, the temperature rising slope is obvious in winter and the temperature increasing extent is not obvious in summer, the change of annual mean highest and lowest temperature presents obvious seasonal characteristic, the annual mean, lowest and highest temperature present an obvious mutation.