沙漠与绿洲气象2025，Vol.19Issue(4)：10-18,9.DOI:10.12057/j.issn.1002-0799.2407.12001
喀什地区北部短时强降水环境参数和雷达特征分析
Environmental Parameters and Radar Characteristics of Short-term Heavy Precipitation in Northern Kashgar
摘要
Abstract
Using ERA5(0.25°×0.25°)reanalysis data,atmospheric sounding data,hourly precipitation data,and storm structure products,the spatial and temporal distribution,circulation patterns,sounding parameters,and storm structures of short-term heavy precipitation in northern Kashgar from 2019 to 2023 were statistically analyzed.The storms were classified into three types based on their initial positions and movement paths:external moving storms,internal moving storms,and internal less moving storms.The results show that short-term heavy precipitation in northern Kashgar is concentrated from April to September,with more precipitation in the shallow mountainous areas compared to the plains.The Central Asian trough(vortex)circulation pattern is the most dominant,accounting for 68.6%of the precipitation,followed by the westerly shortwave pattern.The minimum thresholds for convective available potential energy,precipitable water,Showalter index,K index,uplift index,and storm intensity index are 90.7 J·kg⁻¹,16.1 mm,-1.8 °C,27.0 °C,-2.5° C,and 223.4,respectively,which are lower than those observed in central and eastern China.Internal moving storms are the most prevalent,accounting for 37.9%,followed by internal less moving storms.There are significant differences in storm top height,vertically integrated liquid water content,maximum reflectance factor,and centroid height among the three types of storms.关键词
短时强降水/时空分布/环境参数/风暴结构Key words
short-term heavy precipitation/spatial and temporal distribution/environmental parameter/storm structure分类
天文与地球科学引用本文复制引用
王鹏飞,陶岚,管理,杨鸿,希热娜依∙铁里瓦尔地..喀什地区北部短时强降水环境参数和雷达特征分析[J].沙漠与绿洲气象,2025,19(4):10-18,9.基金项目
自治区自然科学地州科学基金(2022D01F96) （2022D01F96）
国家自然科学基金项目(U2142214) （U2142214）
新疆气象局青年基金(QN202412) （QN202412）
新疆科技厅"天山英才"培养计划项目(2023TSYCJC0066) （2023TSYCJC0066）
