한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권5호
  • /
  • Pages.815-823
  • /
  • 2006
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

물 환경 건전화를 위한 도시하천의 물 순환 모의 (II) - 도림천 유역 -

Hydrologic Cycle Simulation of Urban River for Rehabilitation of Water Environment (II) - Dorimcheon Basin -

  • 이상호 (부경대학교 건설공학부) ;
  • 이정민 (부경대학교 건설공학부)
  • Lee, Sang-Ho (Department of Civil and Construction Engineering, Pukyong National University) ;
  • Lee, Jung-Min (Department of Civil and Construction Engineering, Pukyong National University)
  • 투고 : 2005.12.07
  • 심사 : 2006.08.14
  • 발행 : 2006.09.30
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초록

The hydrologic cycle in urban catchment has been changed due to the expansion of impervious area by rapid urban development. In this study, the SWMM 5 (Storm Water Management Model 5) model was used to simulate the hydrologic cycle of the Dorimcheon catchment which suffers from the distorted hydrologic cycle as a typical urban catchment. This study compare continuous simulation of urban runoff combining the channel and sewer system with that of channel only in the Dorimcheon catchment. Continuous simulations of urban runoff were performed for the upstream basin of Dorim bridge. The urban impervious regions were processed by the land use analysis from LANDSAT_TM images. It was performed from 1975 to 2000 for every five years. Surface, groundwater and wastewater runoffs were additionally included in the simulations one at a time. Such simulations made it possible to evaluate those components quantitatively. The result of continuous simulation of urban runoff combining the channel and sewer system is that peak flow and recession are well simulated. The analysis results of urbanization effect on runoff are as follows: the surface runoff in 2000 increases to 64% of the whole precipitation whereas the surface runoff in 1975 amounts to 46% of the precipitation; the groundwater runoff in 2000 amounts to 6% and shows 8% decrease during the period from 1975 to 2000.

키워드

과제정보

연구 과제 주관 기관 : 수자원

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