Wind Speed Change Regionalization in China in 1961-2012
This research uses the mean wind speed observation data in China,adopts linear fitting method.Aims to quantitatively recognize the change of wind speed using wind speed trend and trend of wind speed variability from 1961 to 2012 and regionalize the wind speed change in China on a county-level basis.The findings suggest that level-Ⅰ regionalization include six zones according to different change rate of wind speed trend value in different regions.Northeast-North China substantial declining zone,East-Central China declining zone,Southeast China slightly declining zone,Southwest China very slightly declining zone,Northwest China declining zone,Qinghai-Tibetan Plateau slightly declining zone.Level-Ⅱ regionalization divides China into twelve regions based on trend of wind speed variability and the results from level-Ⅰ regionalization.