摘要
用方差极大正交旋转REOF方法,将经过均一性检验、分布较均匀的黑龙江省1961～2005年25个测站春季风速变化分为5个区,并对各区风速变化特征进行了分析,最后探讨了人类活动对风速变化的可能影响。结果表明:近45 a来,黑龙江省各个区域风速均呈减小趋势,人类活动可能是导致春季风速减小的一个原因。
In this paper, using the REOF method and materials from 25 stations during 1961-2005 which have been homogeneity adjusted and distribution of stations is well-proportioned , Heilongjiang province is divided into five regions with wind speed change of the springing. The characteristics of wind speed change are analyzed. At last the influence of the human activities on wind speed change is discussed. The results show that wind speed of every region is decreasing during the recent 45 years, and the human increasing activities is possibly one of the reasons which cause wind speed to decrease.
出处
《黑龙江气象》
2009年第1期13-16,共4页
Heilongjiang Meteorology
关键词
风速变化
REOF分析
人类活动
change of wind speed
REOF analysis
human activities
