| “070812”云南元江特大山洪泥石流气象成因分析 |
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| 引用本文： | 金少华,段旭,艾永智,李桂华.“070812”云南元江特大山洪泥石流气象成因分析[J].自然灾害学报,2011(6). |
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| 作者姓名： | 金少华 段旭 艾永智 李桂华 |
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| 作者单位： | 云南省玉溪市气象局;云南省气象科学研究所; |
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| 基金项目： | 国家自然科学基金资助项目(40665001) |
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| 摘 要： | 利用MICAPS常规资料、加密自动站雨量、FY-2C卫星TBB资料和多普勒雷达探测等资料,分析了云南元江2007年8月12日特大山洪泥石流灾害的气象成因。结果表明:低层冷锋切变在南移过程中受帕布台风低压外围较强东北气流的阻挡和引导,使切变转向后在哀牢山附近形成与山脉平行的西北东南向风向切变是造成本次降雨过程的主要天气系统,切变线附近形成的中尺度系统和多普勒径向速度的逆风区产生的短时大暴雨,是引发元江8.12特大山洪泥石流灾害的直接天气原因。
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| 关 键 词： | 山洪泥石流 中尺度系统 多普勒雷达 逆风区 |
Meteorological causes of heavy mountain flood debris flow on Aug.12,2007 in Yuanjiang County of Yunnan Province |
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| JIN Shao-hua,DUAN Xu,AI Yong-zhi,LI Gui-hua.Meteorological causes of heavy mountain flood debris flow on Aug.12,2007 in Yuanjiang County of Yunnan Province[J].Journal of Natural Disasters,2011(6). |
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| Authors: | JIN Shao-hua DUAN Xu AI Yong-zhi LI Gui-hua |
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| Institution: | JIN Shao-hua1,DUAN Xu2,AI Yong-zhi1,LI Gui-hua1(1.Yuxi Meteorological Observatory,Yuxi 653100,China,2.Yunan Provincial Institute of Meteorological Sciences,Kunming 650034,China) |
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| Abstract: | By use of the MICAPS conventional and intensive auto-station rainfalls observation data and FY-2 satellite TBB products and Doppler radar's data,the synoptic cause of great mountain flood debris flow on Aug 12,2007 in Yunjiang County of Yunnan was analyzed.Results indicate that the stronger northeast outer-ring air current is obstructed and led by low pressure of TyphoonPabuk,so that the shear shift formed in southeast direction near Ailao Mountain is the main synoptic system causing this rainfall process.T... |
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| Keywords: | mountain flood debris flow mesoscale system Doppler radar dead-wind area |
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