| 环境风场对地形对流云发展的影响 |
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| 引用本文： | 谷国军,许焕斌.环境风场对地形对流云发展的影响[J].应用气象学报,1993,4(4):394-401. |
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| 作者姓名： | 谷国军 许焕斌 |
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| 作者单位： | 1.中国科学院大气物理研究所 北京100029
(谷国军，王昂生)，北京应用气象研究所 北京100081(许焕斌) |
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| 基金项目： | 大气科学开放实验室资助，地球流体力学数值模拟开放实验室资助 |
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| 摘 要： | 通过一个带地形处理的二维弹性对流云数值模式，模拟了斜坡地形上不同的环境风对地形对流云发展的影响。模拟结果表明，环境风场对于地形抬升产生的对流云的发展强度、云体结构以及地面降水等具有重大的影响。当中上层风与爬坡风的方向相反时，环境风切变和中上层风速越大，对流的强度越大；当中上层风和爬坡风方向一致时，环境风切变削弱对流云的最大强度。
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| 关 键 词： | 数值模拟 地形对流云 环境风 |
Effects of Ambient Wind on the Development of Orographic-convective Cloud |
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| Gu Guojun Wang Angsheng.Effects of Ambient Wind on the Development of Orographic-convective Cloud[J].Quarterly Journal of Applied Meteorology,1993,4(4):394-401. |
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| Authors: | Gu Guojun Wang Angsheng |
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| Affiliation: | 1)????? (Institute of Atmospheric Physics, Academia Sinica, Beijing 100029); 2) (Beijing Institute of Applied Meteorology, Beijing 100081) |
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| Abstract: | The paper simulates the effects of ambient wind on the development of orographic-convective cloud by means of a two-dimensional compressible convective cloud modelwith terrain-following coordinate.The results indicate:Ambient wind has a great influ-ence on the developing intensity,structure and precipitation of orographic-convectivecloud over an upslope.When the middle-upper wind and lower upslope wind are in thereverse direction,the larger the wind speed and Shear intensity of middle-upper levelwind,the severer the convection;when in the identical direction,ambient wind willweaken the maximum intensity of convection. |
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| Keywords: | Numerical simulation Orographic-convective cloud Ambient wind |
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