| 一个考虑地形影响的三维中尺度Monte-Carlo多源模式 |
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| 引用本文： | 邓玉珍,雷孝恩,田瑞明.一个考虑地形影响的三维中尺度Monte-Carlo多源模式[J].气象学报,1993,51(2):139-147. |
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| 作者姓名： | 邓玉珍 雷孝恩 田瑞明 |
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| 作者单位： | 中国科学院大气物理研究所，中国科学院大气物理研究所，中国科学院大气物理研究所 北京 100029，北京 100029，北京 100029 |
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| 摘 要： | 本文设计了一个考虑地形、湍流统计量垂直非均匀和非平稳过程影响的三维中尺度Monte-Carlo多源模式。模式模拟了珠海地区大气SO_2浓度时空分布,很好地揭示了由海陆风和山谷风控制下浓度的日变化规律,计算与实测浓度之间平均比值为0.94±0.2388,其结果是令人满意的。本模式具有概念清楚,没有作人为的特别假设和数值解平流扩散方程时出现的伪扩散问题,更能反映湍流扩散本身具有随机性这一本质的优点。
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| 关 键 词： | 地形影响 三维中尺度 多源模式 |
| 收稿时间： | 1991/4/10 0:00:00 |
| 修稿时间： | 1991/10/14 0:00:00 |
A THREE-DIMENSIONAL MESOSCALE MONTE-CARLO MULTIPLE-SOURCES MODEL INVOLVING OROGRAPHIC INFLUENCE |
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| Deng Yuzhen,Lei Xiaoen and Tian Ruiming.A THREE-DIMENSIONAL MESOSCALE MONTE-CARLO MULTIPLE-SOURCES MODEL INVOLVING OROGRAPHIC INFLUENCE[J].Acta Meteorologica Sinica,1993,51(2):139-147. |
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| Authors: | Deng Yuzhen Lei Xiaoen and Tian Ruiming |
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| Institution: | Institute of Atmospheric Physics, Academia Sinica, Beijing 100029;Institute of Atmospheric Physics, Academia Sinica, Beijing 100029;Institute of Atmospheric Physics, Academia Sinica, Beijing 100029 |
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| Abstract: | A three-dimensional mesoscale Monte-Carlo model in which orographic influence, vertical asymmetry of turbulent statistic and non-equilibrium effect are considered has been used to study the spatial and temporal distribution of atmospheric SO2 concentration in ZHUHAI region. The results show the daily concentration variation under mountain-valley-breeze and land-sea-breeze controlling The average rate of computational and observational concentration is 0.94 + 0.2388, that is satisfied. The model has advantage of clear concept, no special artificial assumption and no pseudo-diffusion, and can better reveal the random characteristic which turbulent diffusion involve itself. |
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| Keywords: | Orographic influence A three-dimensional mesoscale model Multiple sources model |
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