Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
권호 표지

Enhancement of Vertical Atmospheric Dispersion Due to Roughness

조도에 기인한 연직방향 대기확산의 증대

  • 박목현 (부산대학교 환경공학과)
  • Published : 1998.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

Many atmospheric dispersion models have been based on the Gaussian distribution concept of plume spread. In application of Gaussian plume dispersion models, vertical dispersion coefficient 3 has been known as a sensitive variable. Vertical diffusivity K2 (=Oz2/2t) tends to increase with surface roughness, and the value of K3 in urban area is larger than that in rural area due to heat emission as well as increased roughness. Though Pasquill proposed a modification scheme for qz vs x system of Pasquill-Gifford under consideration of roughness effect in 1976, there appears not to be realistic reexamination on the modification scheme. In this study literature review on the effect of terrain or roughness on venical plume dispersion has been carried out in order to improve the prediction results of atmospheric pollution concentration. Again a few research objectives on vertical atmospheric dispersion in complex terrain were Proposed.

Keywords

References

  1. J. Appl. Meteor. v.17 Correlation of land use and cover with meteorologial anomalies Auer, A.H.
  2. J. of Appl. Meteor. v.35 Implications of small scale flow features to modelling dispersion over complex terrain Banta, R.M.;L.D. Olivier;P.H. Gudiksen;R. Lange
  3. High Resolution Models of the Planetary Sciences and Engineering. Ⅵ Blackadar, A.;Pfaffin J.R.(Ed.);E.N. Zieglov(Ed.)
  4. Industrial Source Complex (ISC) Dispersion Model User's Guide, Ⅵ v.2 Bourers, J.F.;J.R. Bjorklund;C.S. Cheney
  5. Boundary Layer Meteor v.65 Sensitivity of PBL model predictions to model design and uncertainties in environmental inputs Carroll, J.J.
  6. J. App. Meteor. v.30 A dispersion model evaluation study for real time application in complex terrain Desiato, F.
  7. Boundary Layer Meteor v.54 A wind tunnel study of turbulent dispersion over two and three dimensional gentle hills from upwind point sources in neutral flow Gong, W.
  8. Atm. Env. v.18 A complex terrain dispersion model for regulatory applications at the Westvaco Luke Mill Hanna, S.R.;B.A. Egan;C.J. Vaudo;A.J. Curreri
  9. Proc. Symp. Multiple-Source Urban Diffusion Models no.A-49 Sensitivities of air quality prediction ot input errors and uncertainties Hilst, G.R.
  10. J. Clim. App. Meteor. v.22 A simple scheme for daytime estimates of the surface fluxes from weather data Holtslag, A.A.M.;A.P. van Ulden
  11. Advances in Geophysics v.6 Wind profile, surface stress, and geostrophic drag coeficients Lettau, H.H.
  12. Monthly Weather Review v.124 A high resolution air pollution model suitable for dispersion studies in complex terrain Liu, M.;J.J. Carroll
  13. JAPCA v.25 The change of concentration standard deviations with distance McMullen, R.W.
  14. J. Atm. Sci. v.27 A note on the vertical structure of the eddy exchange coefficient in the planetary boundary layer O'Brien, J.J.
  15. Boundary Layer Meteor. v.11 The characteristics of turbulent velocity components in the surface layer under convective conditions Panofsky, H.A.;H. Tennekes;D.H. Lenschow;J.C. Wyngaard
  16. A Review of Current Systems and Possible Future Development Atmospheric Dispersion Parameters in Gaussian Plume Modelling : Part Ⅱ Pasquill, F.
  17. Atm. Env. v.9 Point source atmospheric diffusion model with variable wind and diffusivity profiles Ragland, K.W.;R.L. Dennis
  18. Atm. Env. v.28 Wind tunnel studies of roughness effects in gas dispersion Robert, P.T.;E.J. Fryer-Taylor
  19. Boundary Layer Meteor v.66 Turbulence close to a rough urban surface, Part 2 : Variances and gradients Rotach, M.W.
  20. NATO Committee on the Challange of Modern Society, Publ. A Scheme for Estimating the Vertical Dispersion of a Plume from a Source near Ground Level Smith, F.B.
  21. Boundary Layer Meteor. v.39 A review-boundary layer flow over low hill Taylor, P.A.;P.J. Mason;E.F. Bradley
  22. Proc. 2nd Joint Conf. on Applications on Air Pollution Meteorology v.45 Estimation of heat and monentum fluxes near the ground Wang I.T.;P.C. Chen
  23. Atm. Env. v.28 Effects of a two-dimensional low hill in a thermally neutral and stably stratified turbulent boundary layer Zegadi, R.;M. Ayrault;P. Mejean
  24. Boundary Layer Meteor. v.3 On the determination of the height of the Ekman boundary layer Zilitinkevich, S.S.
  25. Boundary Layer Meteor v.1 Variangular wind spirals Lettau, H.H.;W.F. Dabberdt