沙漠与绿洲气象2026，Vol.20Issue(1)：59-67,9.DOI:10.12057/j.issn.2097-6801.2505.29236
基于双极化相控阵雷达的西天山南麓一次雹暴回波特征
Characteristic Analysis of a Hailstorm Echo in the Southern Foothills of the Western Tianshan Mountains Based on Dual-Polarization Phased-Array Radar
摘要
Abstract
Using observational data from the Aksu X-band dual-polarization phased-array weather radar,hail spectrometers,and conventional observations,this study systematically analyzes the characteristics and differences of echo parameters during a hailstorm event that occurred in the southern foothills of the western Tianshan Mountains on August 23,2024.The results indicate that the hailstorm originated from the organized development of a multicellular convective system,which persisted for an extended period and was accompanied by a typical hail signature—the V-notch.Hail formation is favored when the composite reflectivity(CR)reaches or exceeds 60 dBZ,accompanied by a compact intense echo core extending above the-20 ℃ isotherm.Moreover,the trend of vertical integrated liquid de-nsity(VILD)shows good consistency with that of vertical integrated liquid(VIL),while VIL exhibits more pronounced surges and fluctuations.These characteristics aid in locating strong echo cores and provide a basis for predicting hailstorm development and evolution.Polarimetric analysis reveals that high CR,combined with low differential reflectivity(ZDR),low correlation coefficient(CC),and low specific differential phase(KDP),serves as a typical indicator of mixed-phase hydrometeors,particularly in hail-dominated regions.These observations are highly consistent with the hydrometeor classification algorithm(HCL)products.关键词
雹暴/回波参量/粒子相态/雹谱仪/西天山南麓Key words
hailstorm/radar echo parameters/hydrometeor phase state/hail spectrometer/southern foothills of the western Tianshan Mountains分类
天文与地球科学引用本文复制引用
张磊,张继芳,张继东,史莲梅,刘新强,郑博华..基于双极化相控阵雷达的西天山南麓一次雹暴回波特征[J].沙漠与绿洲气象,2026,20(1):59-67,9.基金项目
新疆维吾尔自治区自然科学基金项目(2022D01A293) （2022D01A293）
新疆维吾尔自治区重点研发专项(2022B03021-1) （2022B03021-1）
新疆维吾尔自治区气象局引导性计划项目(YD2024020、YD2024044) （YD2024020、YD2024044）
