摘要
采用主优势型展开等方法对我国100个站1951～1985年共420个月的逐月降水资料序列进行分析.结果表明:我国降水的主优势型(空间驻波型)有7种.对各主优势型对应的时间系数的功率谱分析结果表明有6个周期带:2～4个月、5～7个月、9～11个月、准2a、3.5a左右,11a 左右.
With the help of main advantage model (MAM) functions,the rainfall series of chinese 100 stations in recent 420 monthes (from Jan,1951 to Dec,1985)were analysed.It was found that there are seven MAMs, among them,the south-north difference MAM is very general.And on the base of the power spectrum of each MAM's corresponding time coefficient, six periods:2～4 monthes,5～7 monthes,9～11 monthes,two years,3.5 years,11 years were found.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
1991年第2期244-249,共6页
Journal of Beijing Normal University(Natural Science)
关键词
主优势型
降水
月降水分布
中国
main advantage model
power specturm
rainfall
