Anomalies of the summer westerly jet over East Asian have important impacts on East Asian summer monsoon climate anomalies.

Constructing a Recent 8 ka High-Resolution Record of East Asian Winter Monsoon from Sediments on Inner Shelf of East China Sea;

The relationship between the spatial and temporal variation characteristics of the first mode(EOF1) of East Asian winter monsoon and climate change in China is revealed by using the vector EOF expansion of winter wind fields at 1 000 hPa over East Asia during 1951/1952～2003/2004.

Under this heterogeneous warming background,the sea-land thermal contrast would be changed and then may lead to the variation of East Asian winter monsoon(EAWM).

The European Center for Medium-Range Weather Forecasts reanalysis data sets and the observed data for precipitations and temperatures in China are used to depict the relationships between the eastern China climate and the East Asian jet stream(EAJS).

The background large-scale circulation changes include the intensification of the western Pacific subtropical high(WPSH) and the southwest shift of the East Asian jet stream(EAJS).

Utilizing the radiosonde observation data during the 30 years(1961-1991),we calculate the vertical 16 layers distribution of subtropical westerlies jet in winter,and on the basis of the distribution model to regress the main pluvial regions year by year(according to two standards,i.