季风与气温的关系是全球气候响应研究的重要内容.基于华东4省1市56个气象站点近53a的平均气温和平均风速资料,运用线性趋势分析、Kriging和IDW空间插值、Mann-Kendall突变检验以及Morlet小波分析等方法,分析了1961~2013年华东4省1市在全球气候变暖背景下平均风速的变化特征.结果表明:(1)1961~2013年华东4省1市平均风速减小了0.013 9m·s^-1·a^-1,其中,冬季下降快,夏季下降慢,(2)风速变化率在空间上整体呈条带状分布,并从中心条带向两边递减;(3)气温在1991年发生突变,突变后风速的递减速度加快.整体上风速与气温的变化趋势呈负相关;(4)华东4省1市风速在28a时间尺度上存在周期震荡.该研究对全面认识华东地区风能资源的发展以及风速与气温的关系有重要意义.
The relationship between the monsoon and the temperature is an important part of the global response research to the climate change.Based on the meteorological data of the 56 stations in the Northwestern China from1961 to 2013,using the trend analysis,Kriging and IDW spatial interpolation method,Mann-Kendall mutation test and Morlet wavelet analysis,this essay analyzes the variation of averaged wind speed of Shandong,Jiangsu,Anhui,Zhejiang Provinces and Shanghai in the East China under the global climate changing from 1961 to 2013.The results show that:(1)The wind speed of Shandong,Jiangsu,Anhui,Zhejiang Provinces and Shanghai is weakening by the rate of 0.013 9m·s-1·a-1 from 1961 to 2013.The wind falls faster in winter,and slower in summer.(2)In the space,the tendency rate of the wind speed exists in zonal distribution,presenting that the decreasing degree is gradually diminishing from central to both ends.(3)The temperature has been rising obviously in the East China from1961 to 2013,while the wind speed is contrary to the temperature.The wind speed declines quickly after the temperature mutation that happened in 1991.(4)The complex Morlet wavelet analysis reveals that the seasonal wind velocity exhibits quasi-periodic variations of around 28 a.The study on the comprehensive understanding of the relationship between wind speed and the temperature has an important significance.As a whole,the research on the change of the wind speed has a significant importance to the development of the wind resources in the East China.