| 2015年广西一次罕见秋季暴雨天气过程诊断分析 |
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| 引用本文： | 杨胜才,段利军,黄远盼.2015年广西一次罕见秋季暴雨天气过程诊断分析[J].安徽农业科学,2016(21):237-240. |
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| 作者姓名： | 杨胜才 段利军 黄远盼 |
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| 作者单位： | 广西壮族自治区贺州市气象局,广西贺州,542899 |
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| 摘 要： | 利用探空和地面观测资料，分析了2015年11月11～13日广西一次秋季罕见暴雨天气过程的环流特征、天气尺度影响系统以及物理量的诊断。结果表明：西太平洋副高的位置和强度稳定维持，中纬度西风带多波动，高空低槽发展东移是造成此次强降雨天气的大环流背景；中低层切变线、急流以及冷空气南下影响是引起此次暴雨的主要天气系统；正涡度平流、强烈上升运动、良好的热力条件以及水汽条件的共同影响最终导致了此次暴雨。
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| 关 键 词： | 秋季暴雨 成因分析 物理量 广西壮族自治区 |
Diagnostic Analysis of a Rare Autumn Rainstorm Weather Process in Guangxi in 2005 |
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| YANG Sheng-cai,DUAN Li-jun,HUANG Yuan-pan.Diagnostic Analysis of a Rare Autumn Rainstorm Weather Process in Guangxi in 2005[J].Journal of Anhui Agricultural Sciences,2016(21):237-240. |
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| Authors: | YANG Sheng-cai DUAN Li-jun HUANG Yuan-pan |
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| Abstract: | Sounding and surface observation data were used to analyze a rare autumn rainstorm weather process in Guangxi in November 11-13, 2005.Circulation characteristics and weather scale influencing system were analyzed; and the physical quantity was diagnosed.Results showed that subtropical high in the west Pacific maintained stable position and strength.Mid-latitude westerlies usually fluctuated.Eastward development of high altitude low trough was the big circulation background causing the rainstorm weather.Low level shear line, jet stream and cold air south-ward were the major weather system causing this rainstorm.Joint influence of positive vorticity advection, strong upward movement, good thermal condition and water vapor condition finally led to this rainstorm. |
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| Keywords: | Autumn rainstorm Cause analysis Physical quantity |
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