Browse > Article

Spatial and Temporal Dynamics of Turbid Water in Hypolimnetic Discharging Reservoir  

Park, Jae-Chung (Department of Water Resources Planning, Korea Water Resources Corporation)
Jung, Seok-Won (Andong Dam Office, Korea Water Resources Corporation)
Park, Jung-Won (National Park Research Institute, Korea National Park Service)
Kim, Ho-Joon (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Publication Information
Korean Journal of Ecology and Environment / v.41, no.3, 2008 , pp. 360-366 More about this Journal
Abstract
The spatial and temporal variations of the high turbid water by a single event of heavy rain (total 299.1 mm and daily maximum 99.4 mm) were studied in Andong Reservoir, which has hypolimnetic discharges. Turbid water entered into the reservoir, was isolated from the bottom at the midreservoir and then passed through the metalimnion as an interflow current in the lacustrine zone. Maximum turbidity was 290 NTU at 16 m depth of the midreservoir, but the initial turbidity showed about 10 NTU in the reservoir before the rainfall. Turbid water in the reservoir affected to increase the withdrawal turbidity from the 3rd day after the rainfall, the maximum turbidity was 129 NTU at 5th day after the rainfall. Turbid water that flew towards the downreservoir distributed within 5 m above the outlet gate of the intake tower, showing the maximum turbidity, and that was decreased in its thickness and concentration by discharging through the intake tower. It has taken 38 days until the turbidity in the withdrawal reduced to 30 NTU, and 87 days to reduce the turbidity to the way when it was before the rainfall, with the correlation coefficient of 0.96 and 0.97, respectively. Turbid water was withdrawn from the reservoir by entraining into the intake tower as a form of the interflow, and not be settled down to the bottom of the reservoir. Therefore, we assessed that the depth of the withdrawal was appropriately positioned in Andong Reservoir, so as to withdraw the turbid water effectively from the reservoir.
Keywords
Andong Reservoir; hypolimnion; interflow; turbid water; withdrawal;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
연도 인용수 순위
1 국립환경연구원. 2005. 임하호의 탁수가 수서생태계에 미치는 영향. 168p
2 정세웅, 이흥수, 윤성환, 예령, 이준호, 추창호. 2007. 홍수시 대청호 유역에 발생하는 탁수의 물리적 특성. 한국물환경학회지 23(6): 934-944
3 Bash, J., C. Berman and S. Bolton. 2001. Effects of turbidity and suspended solids on salmonids. Center for Streamside Studies, Univ. of Washington, Seattle, Washington, USA. 92p
4 Thornton, K.W., B.L. Kimmel and F.E. Payne. 1990. Reservoir limnology: Ecological perspective. John Wiley & Sons, Inc. 246p
5 박재충, 박정원, 신재기. 2006. 안동호에서 중층 저산소층 형성의 요인 분석. 한국육수학회지 39(1): 1-12   과학기술학회마을
6 한국수자원공사. 2006. 안동다목적댐 관리연보. 324p
7 한국수자원공사. 2004. 임하호 탁수저감 방안 수립 보고서. 131p
8 황상구, 정기영. 2006. 안동 임하댐 유역의 지질과 임하호 고탁수의 원인. 자원환경지질학회지 39(6): 771-786   과학기술학회마을
9 Shin, J.K., S.A. Jeong, I. Choi and S.J. Hwang. 2004. Dynamics of turbid water in a Korean reservoir with selective withdrawal discharge. Korean Journal of Limnology 37(4): 423-430
10 박재충, 박정원, 신재기, 이희무. 2005. 인공호에서 몬순과 태풍 강우에 의한 고탁수층의 이동과 소멸특성. 한국육수학회지 38(3): 105-117   과학기술학회마을
11 이상욱, 김정곤, 노준우, 고익환. 2007. CE-QUAL-W2 모델을 이용한 임하호 선택배제시설의 효과분석. 한국물환경학회지 23(2): 228-235
12 신재기, 허진, 이흥수, 박재충, 황순진. 2006. 표층수를 방류하는 저수지 (용담호)에서 몬순 탁수환경의 공간적 해석. 한국물환경학회지 22(5): 933-942
13 김범철, 정성민. 2007. 소양호의 탁수발생 실태와 환경학적 영향. 대한환경공학회지 29(11): 1185-1190   과학기술학회마을