| 一个预测沿岸陆上熏烟扩散的随机游动模式 |
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| 引用本文： | 于洪彬,蒋维楣.一个预测沿岸陆上熏烟扩散的随机游动模式[J].大气科学,1993,17(5):629-635. |
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| 作者姓名： | 于洪彬 蒋维楣 |
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| 作者单位： | 南京大学大气科学系，南京大学大气科学系 南京 210008，南京 210008 |
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| 摘 要： | 本文建立了一个对流边界层中的随机游动扩散模式,并用KNRC试验No.64的资料作了验证.然后考虑混合层顶不规则夹卷界面的作用,应用于楠蒂科克沿岸陆上熏烟扩散问题,将模拟的地面轴线浓度与观测资料以及三个熏烟扩散预测模式的结果作了比较.结果表明:模式的模拟效能良好.所有数值计算均可在微机上实现,便于推广应用,更具实用性.
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| 关 键 词： | 随机游动扩散模拟 对流边界层 内边界层 熏烟扩散 夹卷 |
A Stochastic Model for Prediction of Fumigation Dispersion over Coastal Area |
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| Yu Hongbin and Jiang Weimei.A Stochastic Model for Prediction of Fumigation Dispersion over Coastal Area[J].Chinese Journal of Atmospheric Sciences,1993,17(5):629-635. |
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| Authors: | Yu Hongbin and Jiang Weimei |
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| Abstract: | In this paper, a random walk model for dispersion in the convective boundary layer is set up and verified by the data of KNRC Experiment No .64. Then the model is modified, considering the effects of irregular entrainment interface on the top of IBL, and applied to fumigation dispersion over Nanticoke coastal area. The simulated ground-level centerline concentration of SO2 is compared with the data of observation and the results of three fumigation dispersion models. It is showed that model performances are pretty good . The model can be run on microcomputers, so it is also practical. |
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| Keywords: | Stochastic modeling Convective boundary layer Internal boundary layer Fumigation dispersion Entrainment |
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