双流区1961-2019年气温变化特征分析

Analysis of Temperature Variation Characteristics in Shuangliu District From 1961 to 2019

利用成都市双流区1961—2019年的气温资料,采用线性倾向估计法、累积距平等统计学分析方法,对气温进行趋势分析和突变检测。结果显示,近60 a来,双流区气温呈上升趋势,气温变化率是0.265℃/10 a。1961—2019年双流区年季平均气温变为不同程度的上升趋势,增温率最大是冬季,其次为春、秋季,最小为夏季。月平均气温呈单峰型分布。年平均气温和夏季平均气温均在1993年发生突变、春季平均气温在1996年发生突变。

Based on the temperature data of Shuangliu district from 1961 to 2019,the trend analysis and mutation detection of temperature were carried out by using linear trend estimation method and cumulative distance equality statistical analysis method.The results show that the temperature in Shuangliu district has been increasing in recent 60 years,and the temperature change rate is 0.265℃/10 a.From 1961 to 2019,the annual and seasonal average temperature in Shuangliu district showed an upward trend in varying degrees,with the largest warming rate in winter,followed by annual and spring and autumn,and the smallest in summer.The monthly average temperature is of unimodal distribution.The annual average temperature and summer average temperature changed abruptly in 1993,and the spring average temperature changed abruptly in 1996.