Accession Number : ADA119618

Title :   An Analysis of a Puff Dispersion Model for a Coastal Region.

Descriptive Note : Master's thesis,


Personal Author(s) : Rinard,Stephen K

Full Text :

Report Date : Jun 1982

Pagination or Media Count : 89

Abstract : The Risoe National Laboratory, Roskilde, Denmark, atmospheric puff dispersion model has been tested for an atmospheric-marine environment. This three-dimensional model simulates the relates of Gaussian pollutant puffs and predicts their concentration as they are diffused and advected downwind by a horizontally homogeneous, time-dependent wind. Atmospheric characteristics such as turbulence intensity, potential temperature gradient, buoyant heat flux, and maximum mixing depth have been considered. Model predicted pollutant concentrations have been compared to airborne sampled observations. The effect of coastal turbulence not observed by the single point meteorological measurements made onboard ship greatly affects the advection and diffusion of a plume as it moves onshore. Additional measurements/predictions particular to the coastal area will have to be incorporated into the model for it to accurately predict the onshore movement of pollutants. (Author)

Descriptors :   *Air pollution , Release , Offshore , Dispersing , Wind , Turbulence , Atmospheric temperature , Heat flux , Mixing , Plumes , Concentration(Composition) , Mathematical prediction , Mathematical models , Theses

Subject Categories : Meteorology
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE