Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
권호 표지

Validation of the Long-Range Atmospheric Dispersion Model

장거리 대기 확산모델 검증

  • 서경석 (한국원자력연구소 원자력환경연구부) ;
  • 김은한 (한국원자력연구소 원자력환경연구부) ;
  • 황원태 (한국원자력연구소 원자력환경연구부) ;
  • 정효준 (한국원자력연구소 원자력환경연구부) ;
  • 한문희 (한국원자력연구소 원자력환경연구부)
  • Published : 2006.03.31
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Abstract

A long-range atmospheric dispersion model named LADAS has been developed to understand the characteristics of the transport and diffusion of radioactive materials released into atmosphere. The developed numerical model for validation was compared with the results of the ETEX which is the long-range field tracer experiment. As a comparative study, the calculated concentration distributions agreed well in the case of the usage of the mixing heights calculated by the Richardson number than the usage of the constant mixing heights in LADAS model. Also, the calculated concentrations agreed with the time series of the measured ones at some sampling points.

대기 중으로 방출된 방사성 물질의 이동 확산 현상을 이해하기 위하여 장거리 대기 확산 모델 LADAS가 개발되었다 개발된 수치모델의 검증을 위하여 ETEX 장거리 확산실험 결과와 비교하였다. 비교결과 LADAS모델 내 혼합층 높이를 일정하게 준 경우보다 Richardson number를 이용하여 혼합층 높이를 계산한 결과가 관측 값에 가장 근접함을 알 수 있었다. 또한 일부 포집 지점에서 관측된 농도의 시계열 자료와 비교한 바 계산 값은 어느 정도 일치하고 있었다.

Keywords

References

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