Four probability distribution models

generalized extreme value distribution

Weibull distribution

loglogistic distribution and Pearson typeIII distribution

were used to calculate the different return levels of maximum daily precipitation for 85 stations in Guangdong province. The main results are as follows: 1) The results of parameter estimation indicate that there is no universally applicable extreme precipitation probability distribution model; 2) The extreme precipitation occurs more frequently in the Pearl River Delta and the coastal areas of Guangdong among which Qingyuan

Shanwei and Yangjiang are three extreme precipitation centers; 3) The return levels of extreme precipitation differ greatly between the calculations of four probability distribution models.