Atmospheric Dispersion Models in Europe and America. Short Range Atmospheric Dispersion Models for Next Generation.
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概要
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The Pasquill-Gifford (P-G) scheme in the Gaussian plume model has been used for more than 30 years in the world. It is going to be replaced by the new generation models in Europe and USA. The new generatio models are reviewed. The dispersion parameters of the new models are related to the scaling parameters used in the similarity theory in the planetary boundary layer. The OML model that is developed by Olesen Berkowicz <I>et al</I>. for the regulatory use in Denmark, is illuminated here for a representative of the new generation models. The relation between the dispersion parameters of the OML model and the scaling parameters in the planetary boundary layer are reviewed. The meteorological preprocessor of the OML model which calculates the scaling parameters from routine meteorological data are shown. The precision for the prediction by the new generation models and old generation models are compared. The differences between the P-G scheme and the new generation model scheme are discussed. The perspective of the improvement of Japanese dispersion models for regulatory use are discussed.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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