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A combined first-order closure/gaussian dispersion model
Institution:1. Inria, Paris, France;2. CEREA, Joint Laboratory École des Ponts ParisTech - EDF R&D, Université Paris-Est, Marne La Vallée, France;3. Numtech, Aubière, France;4. Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France;1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Qixia, Nanjing, 210023, China;2. Key Laboratory of Surficial Geochemistry, Ministry of Education, School of the Earth Science and Engineering, Nanjing University, 163 Xianlin Ave, Qixia, Nanjing, 210023, China;3. Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, United States;4. Department of Epidemiology and Environmental Health, University at Buffalo, Buffalo, NY, United States;5. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, 1 Dongsanlu, Erxianqiao, Chengdu, 610059, China;1. School of Computer Science and Engineering, Central South University, Changsha, China;2. Department of Computing, Hong Kong Polytechnic University, Hong Kong, China;1. Department of Information Technology, Ghent University/IMEC, Technologiepark 15, Ghent, 9052, Belgium;2. Berkeley Wireless Research Center, Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, 2108 Allston Way, Suite 200, Berkeley, CA, 94704, USA;1. Department of Agriculture, Food, Environment and Forestry, Laboratories of Applied and Environmental Botany, University of Firenze, Piazzale delle Cascine 28, I-50144 Florence, Italy;2. Department of Agriculture, Food, Environment and Forestry, University of Firenze, Via San Bonaventura 13, 50145 Firenze, Italy
Abstract:A dispersion model incorporating a large wind direction shear has been developed for an industrialized coastal area with an indented coastline and rough terrain. The model is based on a first-order closure solution for the vertical spread and a Gaussian profile for the lateral spread. Lateral spread is obtained by numerical integration of turbulent energy spectra. The model is verified against a large number of tracer experiments with near surface release within industrial complexes. The model is shown to correctly simulate shear-enhanced spread out to a distance of 10 km from the source. Part of the observed scatter is believed to be the result of an oversimplified plume rise calculation.
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