Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Estimating Temporal and Spatial Variation of Sediment Transport Processes using a Distributed Catchment Model

분포형 유역모델을 이용한 유사 운반과정의 시·공간적 변동 해석

  • Koo, Bhon K. (Department of Catchment Environment Research, HydroCore Ltd.) ;
  • Cho, Jae-Heon (Department of Environment and Disaster Prevention, Kwandong University)
  • 구본경 ((주)하이드로코어 유역환경연구부) ;
  • 조재현 (관동대학교 환경방재학과)
  • Received : 2007.10.10
  • Accepted : 2007.10.29
  • Published : 2007.11.30
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Abstract

For effective management of sediment-related diffuse pollution, it is of utmost importance to estimate spatial variation of sediment transport processes within a catchment. A mathematical model can play a critical role in estimating sediment transport processes at the catchment scale provided that the model structure is appropriate for representing major sediment transport processes of the catchment of interest. This paper introduces a distributed catchment model River Basin Water Quality Simulator (RBWQS) and presents some results of its application to a small rural catchment in Korea. The model has been calibrated and validated for a wet period using hourly hydrographs and sediment concentrations observed at the catchment outlet. Based on the model simulation results, the spatial variation of sediment transport processes across the catchment and the effects of paddy fields and small reservoirs on hydrology and sediment transport have been analyzed at the catchment scale.

Keywords

Acknowledgement

Supported by : 한국과학재단

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