Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Application of TOPMODEL at Artificially Drained Watershed

인공배수유역에서의 TOPMODEL의 적용

  • Kim, Sang-Hyeon (Dept. of Environmental Engineering, Pusan National University)
  • Published : 1997.10.01
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Abstract

A physically based model for rainfall runoff simulation in agricultural watershed equipped with tile drains is presented. This model is developed from the TOPMODEL which is based on the detailed topographic information provided by Digital Elevation Model (DEM). Nine possible flow generation scenarios in the tile drained basin are suggested and used in the development of the model. The model can identify the portions of the hydrograph resulting from tile flow, subsurface flow and surface flow. The performance of the model is assessed through a calibration and validation process. The results of the analysis show that the model describes the physical system well and provides a better insight into the hillslope hydrology of agricultural watersheds with tile drainage.

인공배수유역의 강우유출모의를 위한 물리적 수문모형이 DEM으로 표현된 지형정보에 근거한 TOPMODEL로부터 개발되었다. 인공배수유역에서일어날 수 있는 아홉 가지 유출 발생 시나리오가 제안되었고, 또 이것을 모형의 개발을 위해 사용했다. 모형은 배수관을 통한 유출, 지하수 유출, 지표수 유출 등으로 유출과정을 나누어서 수문거동을 추적할 수 있도록 구성되어 있다. 제안된 모형은 유역의 물리적 특성을 잘 기술하고 있고 수문학적 거동에 보다 향상된 추출능력을 제공해줄 수 있을 것이라고 사료된다.

Keywords

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