Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지

A Study on the Dispersion of Air Pollutants in Local Circulation of Mesoscale

중규모 국지 순환에서 대기 오염 물질의 확산에 관한 연구

  • Published : 1994.03.01
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Abstract

Dispersion characteristics of air pollutants in the mountainous coastal area are investigated in considering with the mesoscale local circulations using a two dimensional numerical model with two kinds of topograpy of 500m and 300m. In the model, land-sea breezes and mountain-valley wind are mainly considered under the condition of the absence of large scale prevailing flow in the circulation analysis, and the pollutants dispersion is traced by the Lagrangian methods. According to the results, the wind velocity is affected by topography and is stronger in the case of 500m height mountain than that of 300m, the Pollutants that source is near the coast transported over the mountain and dispersed to behind inland area. It is classified that the topography change control affects the wind velocity and the circulations. The pollutants that source is different transported and concentrated to behind inland and/or diffused to the sea area by the combination of the wind system with topographic changes. The results can be applied to the air pollution control with the arrangement design of industrial area and the planning of coastal developments.

Keywords

References

  1. 한국기상학회지 v.29 no.1 연기 상승 효과가 지상 오염 농도에 미치는 영향 김상헌;박순웅
  2. 한반도의 국지 기상 특징과 대기환경 Workshop Lagrangian 입자 확산 모델링 박순웅
  3. Ph. D. Dissertation, Dept. Atmos. Sci. Numerical studies of thermally and mechanically forced circulations over complex terrain Arritt,R.W.
  4. J. Atmos. Sci. v.28 Flux-Profile Relationships in the Atmospheric Surface Layer Businger,J.A.(et al.)
  5. Atmos. Env. v.23 A Simulation of Wind and Air Pollution over Complex Terrain using a Hydrostatic Numerical Model Kimura,F.
  6. J. Meteor. Soc. Japan v.57 no.6 The Effect of the Mixing Layer on the Sea Breeze Circulation and the Diffusion of Pllutants associated with Land-Sea Breezes Kondo,H.;K.Gambo
  7. Ph. D. dissertation Investigation of the impact of topographic circulations on the transport and dispersion of air pollutants McNider,R.T.
  8. Boundary Layer Climates Oke,T.R.
  9. J. Atmos. Sci. v.32 The Critical Richardson Number and the Ratio of the Eddy Transport Coefficients Obtained from a Turbulence Closure Model Yamada,T.
  10. Tenki v.39 no.10 Analysis and numerical simulation of field tracer experiments around Mt. Tsukuba Yamazawa,H.
  11. J. Appl. Meteor. v.31 Numerical Study of the Daytime Urban Effect and its Unteraction with the Sea Breeze Yoshikado,H.
  12. Bound. Layer Meteor. v.48 Inland Penetration of the Sea Breeze over the Suburban Area of Tokyo Yoshikado,H.;H.Kondo