Is the interdecadal variation of the summer rainfall over eastern China associated with SST

摘要: The present study examined the major features of interdecadal variation summer rainfall over eastern China (IVRC) and possible association with sea surface temperature (SST). We noted that first leading mode IVRC (accounting for nearly half total variance maximum loading anomalies South China) may be not forced by SST. On other hand, second third modes [accounting 17.1 13.6 % mainly associated Yangtze River valley (YRV) North China, respectively] in some extent are SST anomalies. These observational results confirmed atmospheric general circulation model (AGCM) simulations observed By eliminating internal dynamical process driven though ensemble mean, further suggest an overall enhancement intensity corresponding especially YRV regions, but China. That implies different role driving regions.