Tidal modification and its effect on sluice-gate outflow after completion of the Saemangeum dike, South Korea SCIE SCOPUS

Cited 20 time in WEB OF SCIENCE Cited 27 time in Scopus
Title
Tidal modification and its effect on sluice-gate outflow after completion of the Saemangeum dike, South Korea
Author(s)
Lee, Seok; Lie, Heung-Jae; Song, Kyu-Min; Cho, Cheol-Ho; Lim, Eun-Pyo
KIOST Author(s)
Lee, Seok(이석)Song, Kyu Min(송규민)Cho, Cheol Ho(조철호)
Publication Year
2008-10
Abstract
This study examined tidal modification and change in tidal currents caused by the construction of the Saemangeum dike, based on field observations and a numerical model. The Saemangeum dike was completed in April 2006, enclosing an estuarine area along the mid-western coast of South Korea. After closure of the dike, the tidal range outside the dike decreased slightly but significantly, while the inside tidal range decreased drastically. The numerical model results show that the dike construction hits influenced tidal energy propagation and the tidal system in the Yellow Sea. The tidal current speed near the dike decreased abruptly following closure of the dike, except in front of the sluice gates. Since completion of the dike, outflow water discharged from the sluice gates has longer residence times due to the weakened tidal current; the change in the tidal current field has also caused greater northward expansion of outflow water. The sluice gates release fresher water, which spreads over the sea surface mainly by inertial momentum near the gate; this water is then gradually mixed with sea water farther from the gate. The less saline, possibly more contaminated outflow impacts the marine environment near the Saemangeum dike. Controlling the discharge and gate-opening timing can partially mitigate these impacts on the marine environment.
ISSN
0916-8370
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4444
DOI
10.1007/s10872-008-0064-7
Bibliographic Citation
JOURNAL OF OCEANOGRAPHY, v.64, no.5, pp.763 - 776, 2008
Publisher
SPRINGER
Keywords
gate outflow; numerical model; Saemangeum dike; tide; tidal current; tidal modification; Yellow Sea
Type
Article
Language
English
Document Type
Article
Publisher
SPRINGER
Related Researcher
Research Interests

Ocean circulation,Dynamics of ocean surface currents by HF Radar and drifters,Real-time ocean monitoring,해양순환,고주파레이다와 표류부이를 활용한 표층해류관측 및 연구,실시간 해양 모니터링

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