The spatial and temporal distribution features of onset period of mean rainy season over Asian monsoon region;

The variations of Asian monsoon as revealed by the variations of kinetic energy of barotropic/baroclinic modes of the wind field;

Thrusts and prospects on understanding and predicting Asian monsoon climate.;

The relationship between the location change of the East Asian subtropical westerly jet(EASWJ) and Asian summer monsoon onset is investigated by using NCEP/NCAR pentad mean reanalysis data.

By use of IAP9 AGCMⅡ, a numerical experiment is made, in which the influence of the south west Indian Ocean SSTA on the outbreak of the Asian summer monsoon has been discussed.

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.

Results show that: (1) The zonal-mean moisture transport in Asian monsoon region is unique because of the monsoon activities.

The impact of the diurnal variation of the surface heating in the Tibetan Plateau on the circulation over the Asian monsoon region is analyzed using the twice daily NCEP data from 1982 to 1996.

Using the CCM3/NCAR,a series of numerical experiments are designed to explore the ocean-land interlaced distribution of Africa—Arabian Sea(AS)—India Peninsula—Bay of Bengal(BOB)—Indochina Peninsula-South China Sea(SCS) on the formation of the Asian Winter Monsoon circulation.