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http://dx.doi.org/10.9765/KSCOE.2015.27.3.149

The Regional Classification of Tidal Regime using Characteristics of Astronomical Tides, Overtides and Compound Tides in the Han River Estuary, Gyeonggi Bay  

Yoon, Byung Il (Department of Ocean Science, College of Natural Science Inha University)
Woo, Seung-Buhm (Department of Ocean Science, College of Natural Science Inha University)
Kim, Jong Wook (Department of Ocean Science, College of Natural Science Inha University)
Song, Jin Il (Department of Ocean Science, College of Natural Science Inha University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.27, no.3, 2015 , pp. 149-158 More about this Journal
Abstract
In this study, we investigate tidal wave propagation characteristics, and classify regional tidal regime using tidal form number considered distribution of astronomical tide, overtides, and compound tides in the Han River Estuary, Gyeonggi Bay. The characteristics of the tidal wave propagation in main channels show dominance of major tidal constituents (e.g., $M_2$, $S_2$, $N_2$, $K_1$ and $O_1$) contributing to the astronomical tide however, distinct increasing of shallow water (e.g., $M_4$) and long period (e.g., $MS_f$) components toward up-estuary. Using the characteristics of tidal form number to astronomical tide, overtides, and compound tides, the regional tidal regime could be assorted into three regions. Firstly, a dominance area of astronomical tide was presented from open sea to a front of Incheon Harbor (Yeomha channel) and to north entrance of Seokmo channel. The area between south and north entrance of Yeomha channel and Ganghaw north channel classified into zone of showing strong shallow water components. It could be separated into upper estuary, upstream the Singok underwater dam, showed dominance of shallow overtides (e.g., $M_4$ and $MS_4$) water and long-term compound tides (e.g., $MS_f$) larger magnitude than astronomical tide. The shallow water components was earlier generated in lower part (south entrance) of Yeomha channel have strong bottom by effect of shallower and narrower compared with Seokmo channel. Tidal asymmetries of upper estuary cause by a development of overtides and compound tides are mainly controlled by influence of man-made structure.
Keywords
astronomical tide; overtides; compound tides; regional classification; tidal form number; Han River estuary;
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Times Cited By KSCI : 5  (Citation Analysis)
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