Characteristics of Climate Change in Xigaze in Recent 53 Years
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Abstract:
Based on the monthly mean temperature and precipitation data of Xigaze in Tibet from 1956 to 2008, the lineartendency function and MannKendall test methods are used to analyze climate changes. The results reveal: the trend of annual mean temperature and extreme temperature increased remarkably in the past 53 years, with the increasing rate of extreme maximum temperature being most obvious, and precipitation increased in an undulating manner. Temperature increased most obvious in winter, then in spring, followed by autumn and summer; precipitation increased in spring and summer, but decreased in autumn. The MannKendall test shows that： the annual mean temperature exhibited an obvious increase trend in the recent 53 years, but the most significant decrease occurred between 1960s and 1970s; an abrupt temperature change happened in 2001; an abrupt change from less to more of annual precipitation occurred in 1958, but ended in the mid1960s.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.