The monthly reanalysis data set and the analyzed precipitation data set are used to study the interannual variability of Somali Jet (SMJ) and its influences on the inter-hemispheric water vapor transport and on the East Asian summer climate.

Interannual and interdecadal variations of moisture transport by Asian summer monsoon and their association with droughts or floods in China;

Roles of tropical and subtropical land_sea distribution and the Qinghai-Xizang Plateau in the formation of the Asian summer monsoon;

The snow cover on the Tibetan Plateau has obvious seasonal,interannual and interdecadal changes,and is one of the most important factors which control the Asian summer monsoon precipitation.

High-resolution satellite data are used to analyze the features of the onset process of the tropical Asian summer monsoon(TASM) from the point of the climatology view.