The detection and attribution of the abrupt change of precipitation in China based on the power-law exponent;
利用幂律尾指数的中国降水突变检测与归因
According to the characters of abrupt change and gradual change,a twice difference based method and a window-difference maximum based method are proposed for abrupt change detection and gradual change detection separately.
针对突变和渐变的特点,提出了一种适合突变检测的二次帧差法和适合渐变检测的窗口最大值法。
According to the climate data observed by 19 weather stations in Hexi corridor from 1960 to 2005,the annual and seasonal agricultural climate resources,including light,heat and water and so on,are diagnostically analyzed by using the method of climate changing tendency,and the abrupt changes of critically agricultural resources factors are analyzed by approach of Mann-Kendall.
以1960~2005年河西走廊地区19个气象站46年的气候资料为基础,运用气候变化倾向率方法对该地区年及春、夏、秋、冬四季的光、热、水等主要农业气候资源要素进行诊断分析,并应用Mann-Kendall方法对主要农业气候资源要素的突变性进行了检测和分析。