Analysis of the Characteristics of"Dragon Boat Rain"in Maoming from 1972 to 2022
Based on the daily precipitation data of five national meteorological observation stations un-der the jurisdiction of Maoming from 1972 to 2022,the spatial and temporal distribution characteristics of"Dragon Boat Rain"in the city were analyzed by means of linear trend analysis,Mann-Kendall test and Morlet wavelet analysis.The results are shown as follows.The spatial distribution of"Dragon Boat Rain"in Maoming was more in the north and less in the south,highlighting three precipitation centers that were all lo-cated on the southern slope of mountains or the southern foot of high altitude peaks,and were closely related to the terrain."Dragon Boat Rain"had obvious inter-annual characteristics,and eight of the study years had anomalously more rainfall and seven had anomalously less rainfall,though the change trend was not obvious."Dragon Boat Rain"changed significantly on the decadal scale,with periodic change of quasi-5,-12,and-30 years.When the subtropical high was strong and westward,the"Dragon Boat Rain"in Maoming would be significantly less and otherwise was true.
climatologyDragon Boat Rainspatial and temporal distributionabruptness testwavelet analysisMaoming
NETL
NSTL
万方数据
