| 太行山地形对一次河北暴雨过程影响的数值研究 |
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| 引用本文： | 侯瑞钦,景 华,王丛梅,柴东红.太行山地形对一次河北暴雨过程影响的数值研究[J].气象科学,2009,29(5):687-693. |
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| 作者姓名： | 侯瑞钦 景 华 王丛梅 柴东红 |
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| 作者单位： | 1. 河北省气象台,石家庄,050021
2. 河北省邢台市气象台,河北邢台,054000 |
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| 基金项目： | 中国气象局技术推广项目"太行山山地对华北中南部暴雨影响的研究";河北省气象局基金项目 |
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| 摘 要： | 应用MM5模式对2000年7月5日河北省中南部的暴雨个例进行数值模拟及诊断分析,探讨了太行山脉对于河北省暴雨的影响.结果表明:降水分布在太行山东部迎风坡上,且强降水中心与喇叭口地形相对应,地形雨特征明显.在高分辨率模式模拟中,地形资料越精细,对迎风坡地形暴雨特征模拟能力越好.本次个例中低层东风越大,造成的迎风坡降水越强.近地面层受地形影响,气流表现为局地环流特征,随山脉的起伏,各物理场均有波动的特征.
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| 关 键 词： | 暴雨 地形 数值试验 |
| 收稿时间： | 2008/5/27 0:00:00 |
Numerical simulation of the impacts of Taihang mountain on rainfall in Heibei |
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| Hou Ruiqin,Jing Hu,Wang Congmei and Chai Donghong.Numerical simulation of the impacts of Taihang mountain on rainfall in Heibei[J].Scientia Meteorologica Sinica,2009,29(5):687-693. |
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| Authors: | Hou Ruiqin Jing Hu Wang Congmei and Chai Donghong |
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| Abstract: | The numerical simulations using MM5 model and diagnostic analysis are conducted for a heavy rainstorm event occurred on July 5-6, 2000 in Hebei province. The impacts of Taihang mountain on rainfall in Hebei province are discussed. The results show that the rainfall occurs at the eastern upwind direction of the Taihang mountain with obvious character of topography-induced heavy rainfall. The rainfall centers are consistent with the bell-mouthed topography. The finer terrain in the high resolving simulation is, the better the topography-induced heavy rainfall model forecast will be, the bigger the low-level eastern wind, and the more obvious precipitaion on upwind direction of the Taihang mountain. The flow shows local circumfluence character and all of the physical factors present wavy character along the terrain. |
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| Keywords: | Rainfall Mountain Numerical simulation |
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