Simulation of Airborne Transport and Dispersion for Urban Waterside Releases
作者： Talmor Meir , Julie Pullen , Alan F. Blumberg , Teddy R. Holt , Paul E. Bieringer
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摘要: AbstractResults are presented from a tracer-release modeling study designed to examine atmospheric transport and dispersion (“T&D”) behavior surrounding the complex coastal–urban region of New York City, York, where air–sea interaction urban influences prominent. The puff-based Hazard Prediction Assessment Capability (HPAC, version 5) model is run for idealized conditions, it also linked with urbanized COAMPS (1 km) meteorological NAM (12 model. Results compared “control” plumes utilizing surface input 22 weather stations. In all configurations, nighttime conditions result in plume predictions that more sensitive small changes wind direction. Plume overlap reduced by up 70% when transported during night. An analysis vertical cross sections nature underlying equations both suggest heat flux gradients boundary layer height gradients...
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