| 两次西行台风登陆对凉山州影响对比分析 |
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| 引用本文： | 吕俊杰,牟端霞.两次西行台风登陆对凉山州影响对比分析[J].高原山地气象研究,2020,40(3):34-40. |
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| 作者姓名： | 吕俊杰 牟端霞 |
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| 作者单位： | 四川省凉山州气象局,西昌 615000;四川省美姑县气象局,美姑 616450 |
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| 基金项目： | 重庆市技术创新与应用发展专项重点项目(cstc2019jscx-tjsbX0007)国家重点研发计划项目(2018YFC1507200) |
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| 摘 要： | 通过利用实况资料和NCEP1°×1°再分析资料对2019年影响凉山州地区的两次西行台风“木恩”和“韦帕”进行分析,结合高空影响系统和物理量场来总结两次过程中强降雨持续时间和落区的异同点。结果表明:两次过程的影响系统有较多的相似点,副热带高压和印度季风低压位置和过程持续时间和落区有很大相关性;台风对两次过程的水汽输送都有较大贡献,属于台风造成的远距离强降水;暴雨落区与两次过程的上升运动大值区对应较好。
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| 关 键 词： | 暴雨 台风 副热带高压 高原低涡 季风低压 |
| 收稿时间： | 2020-05-25 |
Contrastive Analysis of the Impact of Two Westbound Typhoons in Liangshan |
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| Affiliation: | 1. Liangshan Meteorological Bureau, Xichang 615000, China;Meigu Meteorological Bureau, Meigu 616450, China |
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| Abstract: | The two westbound typhoons "Mun" and "Weipa" affecting Liangshan Prefecture in 2019 were analyzed by using the real data and NCEP1°×1° Analysis data. The similarities and differences of the duration of heavy rainfall and the falling area in the two processes were analyzed by combining the high altitude impact system and the physical quantity field. The results show that there are many similarities in the influence systems of the two processes; the different locations of subtropical high and Indian monsoon low lead to the different duration and falling areas of the two rainfall processes; the typhoon contributes greatly to the water vapor transport of the two processes,which belongs to the long-distance heavy rainfall caused by typhoon; and the rainstorm points are two. The large value region of ascending motion of the secondary process corresponds well. |
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