Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Development of Digital Terrain Analysis for an Identification of Wetland Area at Mountainous Watershed

산지습지의 수문지형분석 방법론의 개발

  • Jang, Eun-Se (Dept. of Environmental Engineering, Pusan National University) ;
  • Lee, Eun-Hyung (Dept. of Environmental Engineering, Pusan National University) ;
  • Kim, Sang-Hyun (Dept. of Environmental Engineering, Pusan National University)
  • Received : 2015.09.30
  • Accepted : 2015.11.09
  • Published : 2015.11.30
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Abstract

In this study, a digital terrain analysis had been performed for a mountainous watershed having wetlands. In order to consider the impact for wetland in the flow determination algorithm, the Laplace equation is implemented into the upslope accounting algorithm of wetness computation scheme. The computational algorithm of wetland to spatial contribution of downslope area and wetness was also developed to evaluate spatially distributed runoff due to the presence of wetland. Developed schemes were applied to Wangpichun watershed located Chuncuk mountain at Ulzingun, South Korea. Both spatial distribution of wetness and its histogram indicate that the developed scheme provides feasible consideration of wetland impact in spatial hydrologic analysis. The impact of wetland to downslope propagation pattern is also useful to evaluate spatially distributed runoff distribution.

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References

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