华北地区夏季降水异常型态特征分析

Characteristic analysis of summer precipitation anomalous types in North China

摘要: 利用我国华北地区5省市及相邻省73个观测站1965～2000年逐月降水量资料，采用主成分(EOF)、正交旋转主成分(RE0F)、奇异谱(SSA)等方法，对华北地区夏季降水的空间异常型态特征及各主要振荡准周期进行了诊断分析。

Abstract: With EOF，REOF，SSA methods，the anomalous spatial features and main oscillating quasi-periods of summer precipitation in North China are diagnosed and analyzed by using the monthly precipitation date for the period of 1965～2000 from 73 observational stations in North China and near provinces．