Relation research on between SSTA of Pacfic and extreme prcecipitation events in the eastern China

Based on 233 stations daily precipitation datasets in the East China from 1955 to 2004, NCEP/NCAR reanalysis height fields, vertical velocity, specific humidity, surface pressure and NOAA reconstruct sea surface temperature, and with singular value decomposition, compose analysis methods, relation between Pacific sea surface temperature and extreme precipitation events of East China is researched. It is found that winter Pacific sea surface temperature have remarkable relations with anaphase summer extreme precipitation events of East China, and Equator middle and East Pacific is key area which affect to summer extreme precipitation events of East China, when sea surface temperature occur anomaly phenomenon in the Equator middle and East Pacific in winter, by PNA (AntiPNA) and WP (AntiWP) teleconnection on atmospheric circulation take place adjustment from winter to summer, thus West Pacfic SubTropic High Pressure also take palce anomaly, at last summer extreme precipitation events of North China occur anomaly phenomenon. It is also found that tropic West Pacific is key area which affect to summer extreme precipitation events of northeast China and south of Changjiang River, when sea surface temperature occur anomaly phenomenon in the tropic West Pacific in winter, the average latitudinal vertical circulation of 105°~135°E take place anomaly phenomenon, and vertical motion occur anomaly in the northeast China and south of Changjiang River, at last the extreme precipitation events of the areas also occur anomaly.