Abstract：The article uses daily precipitation data from three national stations in Suining from 1961 to 2020, and four extreme precipitation indices based on the RClimDex model.Linear regression, R/S analysis, M-K mutation test, sliding t-test, and wavelet analysis were used to study the change characteristics of extreme precipitation in Suining from 1961 to 2020.The article calculated the threshold, frequency, and intensity of extreme precipitation in Suining, and analyzed in detail the trends, cycles, and mutation tests of the four extreme precipitation indices.The results obtained are expected to be helpful for business personnel in studying extreme precipitation.
杨雪, 肖薇, 李信, 杨丽霞, 梁莉华, 张渝杰. 基于RClimDex模型的19612020年遂宁地区极端降水变化特征[J]. 气象水文海洋仪器, 2024, 41(4): 50-53.
Yang Xue, Xiao Wei, Li Xin, Yang Lixia, Liang Lihua, Zhang Yujie. Change characteristics of extreme precipitation in Suining region based on RClimDex from 1961 to 2020. Meteorological Hydrological and Marine Instrument, 2024, 41(4): 50-53.
ZHANG Q,LI J,SINGH V P,et al.Spatio-temporal relations between temperature and precipitation regimes:implications for temperature-induced changes in the hydrologicalcycle[J].Global and planetary change,2013,111:57-76.
2024, Vol. 41 
