伊金霍洛旗1980—2009年气候变化浅析

利用伊金霍洛旗1980—2009年的年平均气温、降水量、蒸发量、平均风速、扬沙日数、沙尘暴日数、日照时数等资料,统计分析了伊金霍洛旗近30年的气候变化规律。得到：近30年平均气温呈波动上升趋势,90年代上升幅度较大;年降水量呈波动变化,变化趋势不是很明显;平均风速总趋势是呈减小的;年扬沙日数和沙尘暴日数呈明显下降趋势;年蒸发量总体趋势是下降的;年日照时数总趋势是波动中增加,但增加幅度较小。

The Preliminary Analysis on Climatic Chang of Yijinhuoluo Banner From 1980 to 2009 Years

Using annual mean temperature,precipitation,evaporation capacity,wind speed,sand-dust storm days,sunshine duration of Yijinhuoluo Banner from 1980 to 2009 years,the climatic change discipline of Yijinhuoluo Banner in recent 30 years was statistically analyzed.The results showed that the changeing trend of mean temperature is fluctuant and upward,a greater increase in 90 years,the annual amount of precipitation is fluctuant,the changing trend is not very obvious,the general trend of average wind speed is decreased,the trend of raising sand days and sand-dust storm days is obviously downward,the general trend of annual evaporation overall is decrease,and the general trend of annual sunshine hours is increased,but increased slightly.