新疆吐鲁番60a气温变化基本特征

Temperature Changes Characteristic of Turpan in Recent 60 Years

利用1952～2011年吐鲁番气象站年、季、月平均气温,年最高最低气温、酷热日数资料,采用线性回归、9 a滑动平均和滑动t检验方法分析了吐鲁番60 a气温演变特征。研究表明:60 a来吐鲁番年平均气温呈显著上升趋势,线性增暖率为0.359℃/10 a,在1996年存在暖突变;4季气温均呈增暖趋势,冬季气温增幅最大,秋季、春季次之,夏季最小;各月气温变化中除7月、8月呈下降趋势外其它月份均呈增暖趋势,2月增幅最大;最低气温的增温趋势明显高于最高气温;酷热日数以1.28 d/10a线性趋势增加。

Based on the annual,seasona and monthly mean temperature,and the maximum and minimum temperature and annual hot days data during 1952-2011 from meteorological stations in Turpan of Xinjiang,the time series tendency of temperature was analyzed by using linear tendency,9 years moving average and slide t test.The results showed that temperature of Turpan increased obviously with the rate of 0.359 ℃/10 a in recent 60 years,and in 1996 it had an abrupt change.The maximum warming amplitude was in winter and the minimum was in summer,the monthly temperature increased except in July and August,and in February temperature increased most.The minimum temperature increased more obviously than maximum temperature.The hot days also increased with the rate of 1.28 days/10 a.