| 热带风暴Bilis(2006)登陆期间一波非对称降水分布成因的探讨 |
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| 引用本文： | 石顺吉,余锦华,张大林.热带风暴Bilis(2006)登陆期间一波非对称降水分布成因的探讨[J].热带海洋学报,2009,28(1). |
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| 作者姓名： | 石顺吉 余锦华 张大林 |
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| 作者单位： | 1. 南京信息工程大学太平洋台风研究中心,KLME,大气科学学院,江苏,南京,210044
2. 美国马里兰大学大气海洋科学系,美国马里兰州,20742-2425 |
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| 基金项目： | 国家自然科学基金，江苏省高校自然科学基础研究项目，中国气象科学研究院灾害天气国家重点实验室开放课题 |
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| 摘 要： | 利用中尺度数值模式WRF-ARW对Bilis(2006)进行数值模拟,并进行地形和下垫面因素2个敏感性试验,诊断分析Bilis(2006) 登陆期间一波非对称降水结构形成的动力因子.综合分析3个试验,结果表明环境垂直风切变对Bilis(2006) 一波非对称降水结构形成的影响显著大于地形、登陆过程下垫面属性的改变和风暴移动速度的影响,冷空气的侵入对降水形成也有重要贡献.垂直切变的作用使顺切变左侧形成强降水,冷空气的作用与垂直切变的作用相互配合可能是顺切变方向和顺切变方向右侧强降水的主要成因.
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| 关 键 词： | 热带气旋 非对称降水 地形 环境垂直风切变 冷空气侵入 |
Causes of wave number-1 asymmetric rainfall distribution of tropical storm Bilis(2006) during its landfall |
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| SHI Shun-ji,YU Jin-hua,ZHANG Da-lin.Causes of wave number-1 asymmetric rainfall distribution of tropical storm Bilis(2006) during its landfall[J].Journal of Tropical Oceanography,2009,28(1). |
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| Authors: | SHI Shun-ji YU Jin-hua ZHANG Da-lin |
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| Institution: | 1.Pacific Typhoon Research Center;KLME;NUIST;School of Atmospheric Science;Nanjing 210044;China;2.Department of Atmospheric and Oceanic Science;University of Maryland;College Park;Maryland 20742-2425 U.S.A. |
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| Abstract: | The mesoscale numerical model WRF-ARW was used to simulate Bilis(2006) in a control experiment and two sensitivity experiments in which the effects of terrain and underlying surface factor were studied.The dynamic factors to form wave number-1 asymmetric rainfall structure of Bilis(2006) during its landfall were diagnosed.The results of the three experiments were analyzed comprehensively to show that the influence of environmental vertical wind shear on wave number-1 asymmetric rainfall structure of Bilis w... |
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| Keywords: | tropical cyclone asymmetric rainfall structure terrain environmental vertical wind shear intrusion of cold air |
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