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| Cause analysis of “7·18” severe convective weather process leading to disasters in Sangzhuzi District, Shigatse City |
| Zhaxi Zongji1, Yixi Quzhen2, Dan Zeng1, Pingcuo Dawa1 |
1. Shigatse City Meteorological Bureau, Shigatse 857000;
2. Lhasa Meteorological Bureau, Lhasa 850000 |
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Abstract The article applies MICAPS data, ERA5 reanalysis data and new generation radar data to analyze a disaster causing severe convective process that occurred in Sangzhizi District, Shigatse City on July 18, 2023.The results show that this process has the characteristics of high precipitation intensity, strong locality and convection.The western type of South Asian high press provides favorable high-altitude divergence conditions for this process, and the nighttime enhancement of plateau low vortex provides dynamic convergence conditions for nighttime convective generation.Before convection occurs, abundant water vapor near the surface and middle layer, high lapse rate of atmospheric temperature and high near-surface temperature are conducive to convective occurrence.The low echo centroid of convective cloud, and the obvious characteristics of warm cloud precipitation directly leads to short-term heavy precipitation.The European Central Numerical prediction Model has poor performance in predicting the convection.
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Received: 14 May 2024
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| [1] |
陶昕宇,肖雯.2023年4月江西省一次强对流天气过程特征分析[J].绿色科技,2023,25(10):46-51.
|
| [2] |
唐滢,兰红平,郑群峰,等.深圳突发强对流天气应对机制实例分析[J].气象科技进展,2022,12(6):104-112.
|
| [3] |
次仁曲宗,多吉次仁,尼玛卓嘎.西藏地区2017年8月8—11日强降水天气过程诊断分析[J].农业灾害研究,2021,11(7):72-74,76.
|
| [4] |
马虹旭,杨仲江,王伟,等.一次阜新强雷暴天气的雷达回波及闪电特征分析[J].安徽农业科学,2010,38(18):9639-9640,9711.
|
| [5] |
格桑卓玛,巴桑次仁.日喀则强对流天气变化特征及其影响系统分析[J].安徽农学通报,2019,25(17):143-147.
|
| [6] |
刘俊卿,廖晓坤,陈英英,等.青藏高原那曲中东部冰雹天气卫星雷达特征分析[J].高原科学研究,2022,6(1):9-17,89.
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2024, Vol. 41 
