安徽农业科学2011，Vol.39Issue(32)：20065-20068,4.
近50年西北地区风速的气候变化特征
Climate Change Characteristic of Wind Speed in Northwest of China in Recent 50 Years
摘要
Abstract
Based on the daily mean wind speed from 125 meteorological stations in Northwest of China from 1960 to 2009 and the methods of linear fit,Mann - Kendall test and EOF decomposition,climate change characteristic of wind speed in northwest of China in recent SO years were analyzed. The results showed that there is higher wind speed in the north and smaller wind speed in the south and the wind speed of the most areas is 1 -4 m/s. The smallest wind speed areas are in the Tarim Basin and the biggest are in the borders of China and Mongolia; the wind speed in April is the biggest in twelve months in a year; the annual mean wind speed has tended to decrease,the value is above 0.1 m/( s · 10a). This is because the days of over 3 m/s is decreasing; meanwhile, the sudden change of wind speed are found in Xinjiang, Gansu and Qinghai; the annual mean wind speed is taking on two climate change characteristics of "consistency in all zones" and "difference in east, west and central".关键词
西北地区/风速/气候/变化特征Key words
Northwest of China/Wind speed/Climate/Variation characteristics分类
天文与地球科学引用本文复制引用
田莉,奚晓霞..近50年西北地区风速的气候变化特征[J].安徽农业科学,2011,39(32):20065-20068,4.基金项目
国家重大基础研究发展规划项目(2011 CB403007). （2011 CB403007）
