阿拉尔40年气温变化规律研究

A Study of Climate Variability in Aler Cultivated Area During 1961～1999

根据阿拉尔气象站 196 1年 1月～ 1999年 12月的气温及降水资料 ,对阿拉尔 4 0年的气候变化做了分析 ,得出 4 0年来阿拉尔年平均气温呈上升趋势 (0 .0 6 5℃ / 10年 ) ,冬季变暖的趋势 (0 .84 9℃ / 10年 )远大于夏季变凉的趋势 (- 0 .171℃ / 10年 ) ;年极端低温的上升趋势 (0 .5 6 9℃ / 10年 )大于年极端高温的下降趋势 (- 0 .0 95℃ / 10年 )。可以以 70年代末为界将阿拉尔气候 4 0年分为冷、暖两个阶段 ,前为冷期 。

According to the date of temperature of Alar from January,1961 to December 1999, the climate of Alar was analysed? The results show that the temperature of Alar for 40 years has been appeared to go up(0.065℃/10 years),especially in the latter period of 1990's.The warming trend in winter is more striking than the cooling trend in summer.Choosing the late of 1970s as a boundary of the limit of the end stage of 1970's the climate of Alar for 40 years might be divided into 2 stage, the former is a cold period ,and the latter is a warm period?