맹골수로의 조류시스템 이해

Title
맹골수로의 조류시스템 이해
Alternative Title
Understanding Tidal Current System at Maenggol Channel
Author(s)
최병호; 김경옥; 육진희
KIOST Author(s)
Kim, Kyeong Ok(김경옥)
Publication Year
2014-10-22
Abstract
Tide and tidal current at the Maenggol channel is very complicated. One reason is that the south-west corner of Korean peninsula is the cross-roads of tidal wave and a lot of islands and narrow straits are located Tidal current predictions are valid only at a given observed point and at a given depth they stand in sharp contrast to waterlevel predictions which can easily extended to other stations by simple correlations and extrapolations, turn out to be fairly accurate. This applies to tidal current predictions at sunken Sewol location which is about 2 km north of previous one-month ADCP observation thus KHOA annual tidal current tables are prepared. Situation is similar to buoy observation (downlooking ADCP) and new prediction is being performed based on this. Surprisingly 2006 observation showed that intensity of surface permanent current is about half knot (18 cm/sec) indicating even slack time this current exist. The complete tidal simulations with fine-mesh FEM (20-50 m mesh to represent complicated coastal configurations) have also shown that dynamical, transient tidal eddies at sunken ship location overlap frequently with slack tide forecast. Expertise analysis and advice is essential for rescue operation.ctions are valid only at a given observed point and at a given depth they stand in sharp contrast to waterlevel predictions which can easily extended to other stations by simple correlations and extrapolations, turn out to be fairly accurate. This applies to tidal current predictions at sunken Sewol location which is about 2 km north of previous one-month ADCP observation thus KHOA annual tidal current tables are prepared. Situation is similar to buoy observation (downlooking ADCP) and new prediction is being performed based on this. Surprisingly 2006 observation showed that intensity of surface permanent current is about half knot (18 cm/sec) indicating even slack time this current exist. The complete tidal simulations with fine-mesh FEM (20-50 m mesh to represent complicated coastal configurations) have also shown that dynamical, transient tidal eddies at sunken ship location overlap frequently with slack tide forecast. Expertise analysis and advice is essential for rescue operation.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25936
Bibliographic Citation
대한토목학회 정기학술대회, pp.1247 - 1248, 2014
Publisher
대한토목학회
Type
Conference
Language
Korean
Publisher
대한토목학회
Related Researcher
Research Interests

Coastal Engineering,Marine Environment Model,Coastal Disaster Model,해안공학,해양환경모델링,해안재해모델

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