Objective Classification of Heavy Rain Weather Situation in Dongguan
LIU Biqi
ZHANG Jinmei
Abstract：In order to improve the ability of fine prediction of heavy rain,an unsupervised artificial neural network model of self-organization mapping was used to objectively classify the processes of heavy rain in Dongguan in 2013-2023.The results are shown as follows.The processes of heavy rain in Dongguan ap-pear in six types of weather situation,including southwest wind type,front type,typhoon residual vortex type,monsoon low trough type,strong typhoon type and East Asian main trough type.As shown in compos-ite analyses,the dynamic and thermodynamic conditions differ between different types of heavy rain proces-ses,and produce different precipitation effects,thus forming corresponding types of localized forecast refer-ence index for Dongguan.
Keywords：climatologyheavy rainweather situationobjective classificationself-organization map-pingDongguan
Publication Date：2024-12-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 12-16,22 )