Spatial Information Research

Korea Spatial Information Society (대한공간정보학회)
권호 표지
DOI QR코드

DOI QR Code

Long-term Riverbed Change Simulation and Analisys in the River

하천의 장기 지형변화 고찰 및 하상변동 모의

  • Received : 2013.02.25
  • Accepted : 2013.10.04
  • Published : 2013.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

Trying to estimate variations of the riverbed is basic and important for river management. When new dam constructed in upstream and a structure were planned, impact of the riverbed changes in downstream should be considered for stably maintained and sustained rivers in the future. In this study, long-term riverbed changes analyzed using aerial photographs in Naeseongcheon. Also applying one-dimensional numerical model, GSTARS analyzed the effects of bed deformation in critical points. Based on Changing Patterns of long-term riverbed, it is possible that after the dam was built, to explore how to manage Naeseongcheon.

하천의 흐름 특성과 더불어 하상 변동을 연계하여 분석하는 일은 하천관리에 있어 가장 기본적이면서도 중요하다. 상류에 건설되는 신규댐 등 다양한 목적의 수공구조물이 계획될 때 하류 하천의 하상변화에 미치는 영향은 향후 하천을 지속적이고 안정적으로 보존, 관리하는데 반드시 고려해야 할 사항이다. 본 연구에서는 내성천을 적용 대상으로 항공사진 등을 활용한 하천의 장기적인 지형변화 양상을 고찰하였다. 아울러 1차원 수치모형인 GSTARS를 적용하여 주요지점의 하상변동 영향을 분석하였다. 장기적인 지형변화 양상을 바탕으로 댐이 건설된 후 내성천의 관리방안을 모색해 볼 수 있을 것이다.

Keywords

References

  1. Ahn, S. J; Yun, S. H; Baeck, N. D; Kim, Y. H. 2001, Forecasting of river bed variation using numerical model, Journal of the Korean association of geographic information studies, 14(4): 77-91.
  2. Choi, S. W; Yoon, B. M; Woo, H, S; Cho, K. H. 2004, Effect of flow-regime change due to damming on the river morphology and vegetation cover in the downstream river reach: A case of Hapchon dam on the Hwang river , Journal of Korea water resources association, 37(1): 55-66. https://doi.org/10.3741/JKWRA.2004.37.1.055
  3. Gyeongsangbukdo, 1985, Naeseong river improvement rate.
  4. Kim, C. M; Lee, J. J; Choi, S. W; Ahn, W. S. 2011, A study on development of assessment model for spatio-temporal changes in river bed using numerical models, Journal of Korea water resources association, 44(12):977-992. https://doi.org/10.3741/JKWRA.2011.44.12.975
  5. K-water, 2011, An investigation for 4 major river sediment management, 119-259.
  6. Lee, G. R; Cho Y. D; Kim, D. S; Kim, J. S; Jeong, W. H; Cho, H. J; Yun, K. H. 2010, A study on geomorphic environments and sediments of channels at Naeseongcheon river in Gyeongbuk province, Journal of the Korean association of regional geographers, 16(2):85-99.
  7. Lee, S. H; Ock, K. Y. 2007, A study on vegetation expansion process by soil survey in the sand bar of movable channel, Proceedins of the 2007 conference of the Korea water resources association, 1050-1062.
  8. MLTM, 2007, List of river in Korea.
  9. MLTM, 2012, Naeseong river improvement rate.
  10. Richard, A. M; Mills, J. D; Wrazien, D. R; Bassett, B; Splinter, D. K. 2005, Effects of Jackson Lake Dam on the Snake River and its Floodplain Grand Teton National Par, Wyoming, USA. Geomorphology, 71, 79-98. https://doi.org/10.1016/j.geomorph.2005.03.005
  11. Seo, I, W; Kim, D. G; Lee, J. H. 1995, Analysis of river bed change by using computer model GSTARS, Journal of Korea society of civil engineers, 15(6):1679-1687.

Cited by

  1. Effect of Climate Change on Long-term Riverbed Change using GSTARS Model in Nakdong River, Korea vol.23, pp.4, 2013, https://doi.org/10.1007/s12205-019-0193-0