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KAPPA-G: A Non Gaussian Plume Dispersion Model

The model simulates air pollution from a point source using a Gaussian approximation for the horizontal diffusion, but a Demuth solution of the vertical diffusion. It may thus use information about the vertical wind profile or try to eveluate it through the Similarity Theory.
The program may take into account multiple point sources and many time intervals, each characterized by different meteorological conditions.

KEYWORDS

area: air quality
objectives: simulation, forecasting
description: horizontal gaussian diffusion, non-gaussian plume, deposition, flat terrain, multiple point sources, vertical wind data, short term, short range

SOFTWARE AVAILABILITY

Istituto FISBAT del C.N.R.
Via de' Castagnoli 1
40126 Bologna, Italy

AUTHORS

T. Tirabassi
Istituto FISBAT del C.N.R.
Via de' Castagnoli 1
40126 Bologna, Italy

REFERENCES

  • Briggs, 1975. PLUME RISE PREDICTIONS Lectures on air pollution and environmental impact analyses. Workshop proceedings, Boston, Mass, Sept. 29- Oct. 3, pp. 59-111. American Meteorology Society, Boston, Mass.
  • C. Demuth, 1978. A CONTRIBUTION TO THE ANALYTICAL STEADY SOLUTION OF THE DIFFUSION EQUATION FOR LINE SOURCE A.E., vol. 12, pp. 1255-1258.
  • T. Tirabassi e M. Tagliazucca, 1988. Soluzioni analitiche dell' equazione di trasporto e diffusione turbolenta in atmosfera. Acqua e Aria, N. 2, pp. 177-184.

VALIDATION STUDIES

  • M. Tagliazucca, T. Nanni e T. Tirabassi, 1985. AN ANALYTICAL DISPERSION MODEL FOR SOURCE IN THE SURFACE LAYER Nuovo Cimento C, Vol. 8, pp. 771-781.
  • T. Tirabassi, M. Tagliazucca, R. Lupini e F. Fortezza, 1984. A MATEMATHICAL MODEL OF DISPERSION IN TURBOLENT SHEAR FLOW Int. Jour. of Modelling & Simulation, Vol. 4, pp. 61-64.
  • T. Tirabassi, M. Tagliazucca e P. Zanetti, 1986. KAPPA-G A NON GAUSSIAN PLUME DISPERSION MODEL: DESCRIPTION AND EVALUATION AGAINST TRACER MEASUREMENTS. JAPCA, vol. 36, pp. 592-596.

 

 

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