한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제2권1호
  • /
  • Pages.23-31
  • /
  • 1986
  • /
  • 1598-7132(pISSN)
  • /
  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지

都市地域의 垂直, 水平 擴散係數 算定

Evaluation of the Horizontal and Vertical Dispersion Coefficients for the Urban Area

  • 羅振均 (國立環境硏究所 大氣硏究部) ;
  • 金良均 (國立環境硏究所 大氣硏究部) ;
  • 權寧洙 (國立環境硏究所 大氣硏究部) ;
  • 발행 : 1986.06.01
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초록

Meteorological Measurement was performed for evaluation of the horizontal vertical standard deviation $(\sigma_y, \sigma_z)$, surface roughness length and stmospheric stability during the period of March to October 1985 The major results are as follows; 1) The average value of surface roughness length was 144cm at NEPI. 2) In frequency distribution of atmospheric stability, neutral state (D class) was dominent in Seoul (29%) and Pusan (30%). Unstable states (A. B. C. class) were 26% in Seoul and 24% in Pusan. Also, stable states (D. E. F class) were 74% in Seoul and 76% in Pusan. 3) Standard deviations of horizontal ad vertical direction were evaluated as a function of downwind distance and atmospheric stability at NEPI, Jamsil and Pujeondong (Pusan). Standard deviation of horizontal direction was largest at NEPI among 3 areas because of mechanical turbulence resulting from difference of surface roughness length.

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참고문헌

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