(1) Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, 27695 Raleigh, NC, USA;(2) Geomet, Inc., 1801 Research Blvd., 20850 Rockville, MD, USA;(3) Ontario Ministry for Environment, Toronto, Canada
Abstract:
The assumption of vertical uniform mixing in shoreline fumigation models is tested using two types of modifications to a base statistical model that takes into account non-uniform mixing. One of the modifications involves the use of a downdraft velocity scheme developed for a convective boundary layer. The other modification is based on an empirical adjustment factor derived from water tank experiments. Results from all three models are compared with field observations. Comparisons indicate that the modifications do not improve the results of the base dispersion model.