Boundary-layer diffusion modelling: The Gaussian plume approach versus the spectral solution |
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| Authors: | Helga Nitsche Werner Wergen Klaus Fraedrich |
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| Institution: | (1) Deutscher Wetterdienst, Offenbach, F.R.G.;(2) Institut für Meteorologie, Freie Universität Berlin, 1, 33 Berlin, F.R.G. |
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| Abstract: | The equation of turbulent diffusion is solved for a vertical area source within the planetary boundary layer. The traditional Gaussian-plume approach is compared with the spectral solution of the diffusion equation used together with the barotropic boundary-layer model of Lettau and Dabberdt (1970). The results of the numerical computations are presented and the differences between the solutions are discussed. |
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