Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Numerical Study on the Air Cooling Effect due to Increased Albedo in Urban Area

알베도 증가에 따른 도시 기온 하강 효과에 관한 수치연구

  • Lee, Hyun-Ju (Environmental Cap System Research Department, National Institute of Environmental Research) ;
  • Lee, Kwi-Ok (Department of Earth Environment System, Pusan National University) ;
  • Lee, Soon-Hwan (Department of Earth Environment System, Pusan National University) ;
  • Lee, Hwa-Woon (Department of Earth Environment System, Pusan National University)
  • 이현주 (국립환경과학원 환경총량관리연구부 대기총량과) ;
  • 이귀옥 (부산대학교 지구환경시스템학부) ;
  • 이순환 (부산대학교 지구환경시스템학부) ;
  • 이화운 (부산대학교 지구환경시스템학부)
  • Published : 2008.08.31
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Abstract

In order to clarify the influence of the change of urban surface albedo on mesoscale meteorological factors during the summertime, numerical experiments with various albedo of urban surface were carried out. Numerical model used in this study is PSU/NCAR MM5 V3.6. As a result of the numerical simulation intended of Busan assumed the increase of albedo of roofs, buildings, or roads, the increase of albedo can make decrease radiation effect of surface, so that it caused drops in ambient air temperature from $0.5^{\circ}C$ to $1^{\circ}C$ on the average, and the downtown of Busan formed along the trough presented a substantial drop in ambient air temperature about $1.5^{\circ}C$. Modeling studies suggest the increased surface albedo in urban area can reduce surface and air temperatures near the ground and affect related meteorological parameters such as winds and the depth of the mixed boundary layer.

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References

  1. 윤일희, 민경덕, 김경익(1994) 대구 지역의 기상 특성 연구 및 대기 확산 모델의개발: II. 도시 열섬 특성에 관한 사례 연구, 한국기상학회지, 30(2), 30-313
  2. 이귀옥, 이현주, 이화운(2006) 부산지역의 하계 도시열환경의 특성에 관한 연구, 한국환경과학회지, 16(2), 593-602 https://doi.org/10.5322/JES.2007.16.5.593
  3. 한영호, 김보현, 이동인(1993) 부산지역 도심지의 열섬현상과 기온변화에 관한 연구, 한국기상학회지, 29(3), 205-216
  4. Dudhia, J. (1996) A multi-layer soil temperature model for MM5, The Sixth PSU/NCAR Mesoscale Model Users' Workshop, 22-24, July 1996, Boulder, Colorado, 49-50
  5. Gedzelman, S.D., S. Austin, R. Cermak, N. Stefano, S. Partridge, S. uesenberry, and D.A. Robinson (2003) Mesoscale aspects of the Urban Heat Island around New York City, Theoretical and Applied Climatology, 75, 29-42
  6. Grell, G.A., J. Dudhia, and D.R. Stauffer (1994) A Descrpition of the Fifth Generation Pen State/NCAR Mesoscale Model, NCAR Tec Note
  7. Hong, S.Y. and H.L. Pan (1996) Nonlocal boundary layer vertical diffusion in a mediumrange forecast model, Monthly Weather Review, 124, 2322-2339 https://doi.org/10.1175/1520-0493(1996)124<2322:NBLVDI>2.0.CO;2
  8. Landsberg, H.E. (1981) The Urban Climate. Academic Press, New York
  9. Taha, H. (1997) Urban climates and heat islands, albedo, evaportranspiration, and anthropogenic heat, Energy & Buildings, Special Issue on Urban Heat Islands, 25(2), 99-103
  10. Willmott, C.J. (1981) On the validation of models, Physical Geography, 2, 168-194
  11. Yamashita, S. (1996) Detailed structure of heat island phenomena from moving observations from electric tramcars in Metropolitan Tokyo, Atmospheric Environment, 30(3), 429-435 https://doi.org/10.1016/1352-2310(95)00010-0

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