Based on the moving puff integration model, TSP atmospheric diffusion model in conditions of light air and calm has been derived theoretically by a method of mathematical model analysis.

以移动烟团积分模式为基础，采用数学模型分析法，从理论上导出了小风和静风状态下的TSP大气扩散模式。

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Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.

采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。

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As one of the classical models of atmospheric diffusion, Gaussian model has been widely used.

作为计算大气扩散的经典模型，高斯扩散模型一直被人们广泛地利用。

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