APPLICATION OF GAMMA PERCENTILE TO RAINFALL CHANGE
Ye Jinlin and Wang Shaowu (Department of Geophysics, Peking University,Beijing 100871)
Advantage and disadvantage of three rainfall indices were demonstrated. It indicates that the Gamma distribution provides a good fit to precipitation data and enables precipitation amounts to be accurately expressed in terms of probability in the rainfall analysis of large scale region. The relationship between SST in east equatorial Pacific and precipitation in China and India was also studied by Gamma percentile series.