Derivation and Evaluation of Rainstorm Intensity Formula for Wuchuan
In order to further improve the scientific and practical nature of urban drainage systems,the minute by minute rainfall data of Wuchuan National Meteorological Observation Station from 1980 to 2021 were used in this paper to deduce the formula of rainstorm intensity in the city,together with the annual maximum method,numerical approximation and least squares method.The results are shown as follows.The error between the theoretical value of Zhanjiang and the actual value of Wuchuan is too large to meet the re-quirements of outdoor drainage specifications.The accuracy of both the parameter formula of rainstorm inten-sity interval and the comprehensive formula of rainstorm intensity derived in this paper meet the accuracy re-quirements,which can be used as reference for relevant departments to design drainage infrastructure in Wu-chuan,and the accuracy of the parameter formula of rainstorm intensity interval is much better than that of the comprehensive formula of rainstorm intensity.
climatologyrainstorm intensity formulaannual maximum methodPearson-type Ⅲ distri-bution curveWuchuan
NETL
NSTL
万方数据
