甘肃近40年来气温变化的研究

利用 196 0～ 1999年甘肃省 15站的月平均气温 ,平均最高、最低气温 ,极端最高、最低气温等资料 ,对近 4 0年来甘肃省气候变化特征作了分析研究。结果显示 :1985年以前甘肃年平均气温变化是平稳的 ,以后急剧增温 ,且增温并不是主要由冬季增温造成的。1985年以前是平均最低气温升高 ,以后平均最高气温也在升高 ,所以 1985年以后的气温变暖不完全是以最低气温变暖为主形成的

STUDIES ON TEMPERATURE CHANGE IN GANSU IN RECENT 40 YEARS

Based on the date of monthly mean air temperature from about 15 stations in 1960-1999 and the date of maximum and minimum air temperature,extreme maximum and minimum air temperature,the climate change and its characteristics in Gansu in recent 40 years are analyzed and studied comprehensively.The results show that the annual mean air temperature change was smooth and steady,minimum air temperature was warmer than normal before 1985,while maximum air temperature was also warmer than normal after 1985,so climate warmer is not caused mainly by minimum air temperature warmer in winter.