大气科学2025，Vol.49Issue(2)：537-549,13.DOI:10.3878/j.issn.1006-9895.2407.24007
2018～2023年云南红河地区冰雹天气及其谱分布特征
Characteristic of Hail Events and Spectrum Distribution in Honghe,Yunnan during 2018-2023
摘要
Abstract
The Yunnan-Kweichow Plateau is one of the regions of China with a high frequency of hail events;however,relevant studies on hail characteristic are few.On the basis of 93 minus-level spectrum datasets collected from 60 hail events by 13 national meteorological stations in Honghe,southern Yunnan,during 2018-2023,the annual,seasonal,daily,and geographic distributions of the number of hail days,hail size,and hailfall duration as well as hail type and spectrum distribution are investigated in this study.Results show that the annual mean number of hail days was 10,with a maximum of 24 d and a minimum of 3 d.The annual mean maximum hail size was 9-16 mm,and the hailfall duration was 2-5 min.The number of hail days had apparent seasonal and diurnal variations.The number of hail days was 33 d in spring for 6 years,which accounted for more than 50%of the total 60 d during this period,with the 3 d in autumn.Most hail events occurred in the afternoon and evening.The overall hail spectrum distribution was unimodal.Higher concentrations of hail were observed in spring and summer(with a maximum hail size of 19 mm in diameter)and were dominated by high-density hail.Very few occurrences of low-density hail and graupel were observed.Hail events had apparent geographic distribution characteristic.The western and southern subregions had the highest number of hail days,which was dominated by high-density hail,and graupel and low-density hail were few.Overall,hail events in the Honghe region,Yunnan,primarily occurred in the afternoon and evening of spring.Hail events had a short duration and were dominated by high-density small-sized hail.Low-density hail and graupel were present in very low concentrations.关键词
冰雹天气/时空分布/谱分布/云南红河Key words
Hail events/Spatial and temporal distribution/Spectrum distribution/Honghe of Yunnan分类
天文与地球科学引用本文复制引用
郑皎,郭欣,付丹红,李英发,郭学良..2018～2023年云南红河地区冰雹天气及其谱分布特征[J].大气科学,2025,49(2):537-549,13.基金项目
国家自然科学青年基金项目42105173,第二次青藏高原科学考察项目2019QZKK0104,云南省科技厅重点研发计划项目202203AC100006,中国气象局/农村农业部烤烟气象服务中心开放式研究基金项目KYZX2024-05,云南省气象局科研项目YZ202423,YZ202519 Funded by Young Scientists Fund of the National Natural Science Foundation of China(Grant 42105173),Second Tibetan Plateau Comprehensive Scientific Expedition(Grant 2019QZKK0104),Key Research and Development Project of Yunnan Science and Technology Agency(Grant 202203AC100006),Open Research Fund Project of Tobacco Meteorological Service Center of China Meteorological Administration and Ministry of Agriculture and Rural Affairs(Grant KYZX2024-05),Research Project of Yunnan Meteorological Bureau(Grants YZ202423,YZ202519) （Grant 42105173）
