Experimental Verification Study for System for Prediction of Environmental Emergency Dose Information : SPEEDI, (II)

Simulation of Field Tracer Experiments at Isolated Mountain

Abstract

The performance of a computational model to simulate an accidental release of radioactivity into the atmosphere was evaluated by data sets from field tracer experiments over an isolated mountain. This model consists of a mass-consistent model for wind-fields and a particle random-walk model for atmospheric dispersion.
Model simulations of tracer concentrations were compared with observed values from twelve experiments. The computed results agree reasonably with observed concentration patterns and achieve an agreement within a factor of 10 for 50% of the samples.