| 摘要: |
| 本文选取2006年至2022年黔南30次降雹事件，通过天气学分析方法对常规高空、地面气象资料进行研究分析，以地面流型为主，高低空流型为辅进行天气分型，得出降雹发生前天气背景流型配置和T-logP图形态的黔南本地化结论。结果表明：（1）黔南地区冰雹事件发生前3类有利天气环流类型：热低压辐合型、高架雷暴型和冷锋低槽（切变）型；（2）热低压辐合型降雹高频次区域为黔南中北部，高架雷暴型降雹高频次区域为黔南中部，冷锋低槽（切变）型降雹高频次区域为黔南中南部；（3）黔南地区冰雹天气发生前的T-logP图形态共有4种，分别为漏斗无梭形、无漏斗梭形、小漏斗梭形、大漏斗梭形。 |
| 关键词: 冰雹;天气环流;T-logP图 |
| DOI： |
| 投稿时间：2023-09-18修订日期：2024-03-30 |
| 基金项目: |
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| Analysis of Circulation Characteristics of Hail Weather in Qiannan |
| HuangLinyuan,LuoXiping,ZhaoJie,MoYidong |
| (Qiannan Meteorological Bureau;The Weather Modification Office of Guizhou Province) |
| Abstract: |
| This study selected 30 hail events in Qiannan Prefecture from 2006 to 2022, and the conventional upper-air and surface meteorological data were analyzed by means of synoptic analysis. The weather classification primarily relied on the ground flow type, supplemented by the high-low-altitude flow type. Localized conclusions regarding the configuration of weather background flow types and T-logP patterns prior to hail occurrence in Qiannan Prefecture were obtained. The findings revealed: (1) Three favorable weather circulation types were identified before hail occurrence in Qiannan Prefecture, namely hot low-pressure convergence type, overhead thunderstorm type, and cold front low trough (shear) type. (2) The central and northern parts of Qiannan Prefecture exhibited a higher frequency of hail occurrences under the hot low-pressure convergence type, while the central part experienced more frequent hail events under the overhead thunderstorm type, and both central and southern regions encountered increased hail frequencies under the cold front low trough (shear) type. (3) Four T-logP patterns were observed preceding hail occurrences in Qiannan Prefecture: funnel-free shuttle pattern, no funnel shuttle pattern, small funnel shuttle pattern, and large funnel shuttle pattern. |
| Key words: hail; synoptic circulation; T-logP |
