茂名地区“雨窝”的降水特征  

Analysis of the Characteristics of Preferred Cores of Frequent,Extreme Short-range Intense Rains in Maoming Area

作　　者：陈煜杰 梁露文 莫梁狄 刘祖任 CHEN Yujie;LIANG Luwen;MO Liangdi;LIU Zuren(Gaozhou Meteorological Service,Gaozhou 525200;Maoming Meteorological Service,Maoming 525000)

机构地区：[1]高州市气象局,广东高州525200 [2]茂名市气象局,广东茂名525000

出　　处：《广东气象》2025年第1期44-47,共4页Guangdong Meteorology

基　　金：广东省茂名市气象局科学技术研究项目《茂名“雨窝”降水特征分析》。

摘　　要：利用茂名地区93个区域自动气象站的降水观测资料对茂名地区的“雨窝”进行识别判定,并从降水量和极端短时强降水频次两个角度对“雨窝”进行分析,结果表明:(1)马贵、北界和罗坑为茂名地区的“雨窝”,是茂名地区发生极端短时强降水最频繁的区域;(2)罗坑的年降水量与其年极端短时强降水频次之间存在显著的正相关关系,北界和罗坑的月降水量与其月极端短时降水频次之间存在显著的正相关关系;(3)马贵的极端短时强降水主要发生在后汛期,北界和罗坑的极端短时强降水则主要发生在前汛期;(4)茂名地区3个“雨窝”的极端短时强降水在白天发生的可能性较夜间更大。Using the rainfall observations from 93 regional automatic weather stations in Maoming,this paper identified and determined the preferred cores that frequently received extreme short-range intense rains in the area,and analyzed the rainfall characteristics in terms of the amount and frequency.The results are shown as follows.(1)Magui,Beijie and Luokeng were such rain cores in Maoming where extreme short-range intense rains took place most frequently.(2)For Luokeng,there was significant positive correlation between the annual rain amount and the annual frequency of extreme short-range intense rains;for Beijie and Luokeng,there was significant positive correlation between the monthly rain amount and the monthly frequency of extreme short-range intense rains.(3)For Magui,the extreme short-range intense rain mainly took place in the late period of the rainy season;for Beijie and Luokeng,it mainly happened in the early period.(4)For all of the three rain cores of Maoming,it was more likely for the extreme short-range intense rain to occur during the day than at night.

关 键 词：天气学 雨窝 极端短时强降水 地形 茂名地区 

分 类 号：P44[天文地球—大气科学及气象学]