摘要
文中利用中国东部地区40个气象观测站1955～2010年6～8月份降水资料,采用主成分分析和小波分析方法,对近56年中国东部地区夏季降水的时空分布特征进行了分析。分析结果表明东部地区降水空间分布的主要类型是南北分布,在时间域中则存在多层次的时间尺度结构和局部变化特征。
Based on the precipitation data of 40 meteorological stations in eastern China in 1955-2010 and 6-8 months,the temporal and spatial distribution characteristics of summer rainfall in eastern China in recent 56 years were analyzed by principal component analysis and wavelet analysis. The results showed that the main distribution types of precipitation in the eastern region were North South distribution,and there were multi-level time scale structure and local variation characteristics in the time domain.
作者
郭学宇
Guo Xueyu(Map Institute of Gansu,Lanzhou 730000,China)
出处
《矿山测量》
2018年第2期108-112,共5页
Mine Surveying
关键词
东部地区
夏季降水量
主成分分析
小波分析
eastern china
summer precipitation
principal component analysis
wavelet analysis
