| 利用MM5模式对河西暴雪的数值模拟分析 |
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| 引用本文： | 张新荣,张铁军,陶健红,邵亮,王勇,李文莉.利用MM5模式对河西暴雪的数值模拟分析[J].自然灾害学报,2010,19(1). |
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| 作者姓名： | 张新荣 张铁军 陶健红 邵亮 王勇 李文莉 |
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| 作者单位： | 张新荣,张铁军,陶健红,王勇,李文莉(兰州中心气象台,甘肃,兰州,730020;兰州区域气象中心区域模式开发应用开放实验室,甘肃,兰州,730020);邵亮(兰州市气象局,甘肃,兰州,730000) |
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| 基金项目： | 国家科技公关重大项目"西部开发科技行动"之"祁连山空中云水资源开发利用研究"公共 |
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| 摘 要： | 利用NCEP资料和MM5模式模拟分析了2005年3月14-15日出现在甘肃河西西部的一次暴雪天气过程.结果表明:这次暴雪天气过程产生在从低空到高空的急流轴附近;由于600～500 hPa的辐合,促使形成近地面上升运动,从而使地面形成低压系统;相对湿度最大值在750～450 hPa之间,与辐合层基本一致,表明600 hPa附近有一条水汽输送通道,它与高空急流、500 hPa正涡度层、上升运动区等相吻合,为暴雪的产生提供了动力、热力和水汽条件.MM5模式很好地模拟出了暴雪的大致区域,显示了对这种中尺度天气系统具有较好的预报效果.
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| 关 键 词： | 暴雪 大气环流 数值模拟 诊断分析 |
Simulation analysis of a snowstorm weather process in west of Hexi Corridor with MM5 mode |
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| ZHANG Xin-rong,ZHANG Tie-jun,TAO Jian-hong,SHAO Liang,WANG Yong,LI Wen-li.Simulation analysis of a snowstorm weather process in west of Hexi Corridor with MM5 mode[J].Journal of Natural Disasters,2010,19(1). |
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| Authors: | ZHANG Xin-rong ZHANG Tie-jun TAO Jian-hong SHAO Liang WANG Yong LI Wen-li |
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| Institution: | ZHANG Xin-rong,ZHANG Tie-jun,TAO Jian-hong,SHAO Liang3,WANG Yong,LI Wen-li(1.Lanzhou Central Meteorological Observatory,Lanzhou 730020,China,2.Model Laboratory of Lanzhou Regional Meteorological Center,3.Lanzhou Meteorological Bureau,China) |
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| Abstract: | Using the NCEP data,a snowstorm process in the west of Hexi Corridor,Gansu Province,from 14 to 15 March,2005 was simulated by the mesoscale model-MM5.The results show that this snowstorm weather process produces at jet flow axis from low level to high level nearby;the convergence of 600~500hPa caused the ground air flow to move upward and formed the ground low-pressure system;the relative humidity maximum value between 750~450 hPa is basically consistent with convergence zone,and indicates that there is a w... |
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| Keywords: | snowstorm atmospheric circulation numerical simulation diagnostic analysis |
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