Development of Long-Range Atmospheric Dispersion Model against a Nuclear Accident

원전 사고를 대비한 장거리 대기 확산모델 개발

  • 서경석 (한국원자력 연구소 원자력환경연구팀) ;
  • 김은한 (한국원자력 연구소 원자력환경연구팀) ;
  • 한문희 (한국원자력 연구소 원자력환경연구팀)
  • Published : 2002.09.30


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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