达州冰雹天气类型统计研究  

Statistical Study on Hail Weather Types in Dazhou

作　　者：夏利[1] 夏菲 蹇冬梅 张玲[2] 朱瑞莉 XIA Li;XIA Fei;JIAN Dongmei;ZHANG Ling;ZHU Ruili(Dazhou Meteorological Bureau,Dazhou 635000,China;Suining Meteorological Bureau,Suining 629000,China)

机构地区：[1]四川省达州市气象局,达州635000 [2]四川省遂宁市气象局,遂宁629000

出　　处：《高原山地气象研究》2022年第S01期108-113,共6页Plateau and Mountain Meteorology Research

摘　　要：利用常规气象资料和探空资料,对1980~2018年达州出现的89次冰雹过程进行分析研究,结果表明:达州地区冰雹主要出现在4~8月,其中4~5月概率最大;降雹具有明显的日变化特征,集中在午后到傍晚;降雹和地形有密切关系,主要集中在达州的中北部,特别是北部;冰雹天气类型有四种,分别是西北气流型、低槽型、阶梯槽型和东亚横槽型;基于冰雹天气的相关物理量指标和各天气类型下的物理量特征可作为达州冰雹预报的重要因子。Using conventional meteorological data and sounding data,89 hail processes in Dazhou from 1980 to 2018 were analyzed and studied.The results show that hail mainly occurs in April to August,and the probability of April to May is the largest.Hailfall had obvious diurnal variation characteristics,mainly from afternoon to evening.Hailfall is closely related to topography,mainly concentrated in the central and northern part of Dazhou,especially in the northern part.There are four types of hail weather,namely northwest airflow type,low trough type,stepped trough type and East Asian transverse trough type.Based on the related physical indexes of hail weather and the physical characteristics of various weather types,it can be used as an important factor for hail forecast in Dazhou.

关 键 词：冰雹 天气学模型 预报指标 物理量 

分 类 号：S761.4[农业科学—森林保护学]