By use of the SCSMEX situ observational precipitation and NCEP/NCAR reanalysis data sets, this study discussed the low frequency (LF) variational characteristics of the East Asian summer monsoon circulation (EASMC) with EOF and MSSA analysis methods.

• 利用1998年SCSMEX试验期降水观测资料和NCEP/NCAR再分析资料, 将物理量场在降水EOF分析得到的时间系数上展开,分析东亚夏季风环流低频变化特征。