知识与财富的链接
利用线性趋势函数及Mann-Kendall突变检测分析法,分析了西藏藏南河谷日喀则气象站气温及降水近53年的气候变化特征。结果表明,年平均气温与极端气温均呈上升趋势,而最高气温的上升趋势尤为明显,年降水量波动上升。冬春季增温趋势较秋、夏季更为明显,春夏季降水呈增加趋势,而秋季降水略有减少。Mann-Kendall突变检测表明,近53年日喀则地区气温有明显的增暖趋势,但20世纪60—70年代变冷趋势亦十分显著,在2001年温度发生一次突变。年降水量在1958年发生了由少向多的突变,但这一突变仅维持到20世纪60年代中期。
Based on the monthly mean temperature and precipitation data of Xigaze in Tibet from 1956 to 2008,the linear-tendency function and Mann-Kendall 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 ...
