Relationship between index of land-sea thermal difference and summer rainfall in China;

Based on 1950～1999 monthly global SST from Hadley Center,NCAR/NCEP reanalysis data and rainfall over 160 stations in China,investigation is conducted into the difference of summer rainfall in China between the years with IOD happening independently and those with IOD happening along with ENSO so as to study the effects of ENSO on the relationship between IOD and China precipitation in summer.

The effects of spring Eurasian snow cover on Northern Hemispheric atmospheric circulation and summer rainfall in China have been explored using the latest version of general circulation model (GCM) CAM3.

The relation between the interannual variation of the east Asian summer monsoon (EASM) and the summer precipitation in China is investigated in terms of the east Asian summer monsoon intensity index.

5°N,170°E~170°W) is found to be essential to China summer rainfall and the region is defined as the SST key area.

The single point correlated map for summer rainfall in east China which has the maximum number of stations who′s correlation coeffecient is greater than the statistical threshold is defined in this paper as the main correlation pattern, and its corresponding circulation features are investigated.