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J Radiat Prot > Volume 27(3); 2002 > Article
Journal of Radiation Protection 2002;27(3):171-0.
원전 사고를 대비한 장거리 대기 확산모델 개발
Development of Long-Range Atmospheric Dispersion Model against a Nuclear Accident
Suh, Kyung-Suk;Kim, Eun-Han;Han, Moon-Hee;
The three-dimensional long-range dispersion model has been developed to understand the characteristics of the transport and diffusion of radioactive materials released into atmosphere. The model is designed to compute air concentration and ground deposition at distances up to some thousands of kilometers from the source point in horizontal direction. The vertical turbulent motion is considered separately within the mixing layer and above the mixing layer. The test simulation was performed In the area of Northeast Asia. The release point was assumed in the east part of China. The calculated concentration distributions art mainly advected toward the southeast part of release point by the wind fields. The developed model will be used to estimate the radiological consequences against a nuclear accident. The model will be supplemented by the comparative study using the data of the long-range field experiments.
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