1984 Volume 19 Issue 6 Pages 430-438
In recent years assessment methods for environmental impacts of air contaminants released and dispersed in a region of complex terrain have been focused on. The purpose of this paper is to present a patctical model to predict pollutant dispersion in complex terrain. The study included experiments conducted in such region.
At first the field of wind flow in an area concerned is determined by the modified potential flow model. Second we present the calculation procedure of ground level concentration using the modified plume model. Characteristics of the model are as follows:
1) It is easier to estimate air pollutant concentration by means of a modified Gaussian plume model.
2) By applying the wind profile model which is able to express a trajectory of wind along complex terrain, its plume axis is in accord with the streamine which runs through emission source.
3) The precision of model prediction is improved in comparison with the other model which does not take the effect of complex terrain into consideration.
As a result of agreement between predicted and actual concentration, the proposed model is found to be applicable to the real problem.
