Abstract:

Base on the observational data of severn meteorological stations from 1960 to 2005,the temporal distributions and their trends for precipitation in EastSouth of Anhui Province are investigated. The conclusion can be drawn as follows:, the precipitation in EastSouth of Anhui has an decrease trend from 1960s.but the precipitation in EastSouth of Anhui has an increase trend, though the annual precipitation has no significant change trend. Autumn has an significant increase trend . The annual precipitation days ,spring and winter precipitation days in EastSouth of Anhui have not significient changed. The precipitation days of summer have slightly increased ,while decreased in autumn.The extreme total rainfall since 1981 appear a increase trend ,but have a significient decreased trend from 1963 to 1965 and in 1968. extreme precipitation intensity and frequency take on a not obvious trend from 1960 to 2005.