Numerical modeling of tide and tidal current in the Kangjin Bay, South Sea, Korea

被引：0

作者：

Ro Y.J. ^{[1
]}

Jun W.S. ^{[2
]}

Jung K.Y. ^{[1
]}

Eom H.M. ^{[3
]}

机构：

[1] Department of Oceanography, College of Natural Sciences, Chungnam National University

[2] Dawoo Ocean Corporation, Seoul 156-810

[3] Technology R and D Institute, Hyein E and C Co. Ltd., Yeongdeungpo-gu, Seoul 150-854

来源：

Ocean Science Journal | 2007年 / 42卷 / 3期

关键词：

Ellipse parameter; Kangjin Bay; Numerical model; South Sea; Tide;

D O I：

10.1007/BF03020919

中图分类号：

学科分类号：

摘要：

This study is based on a series of numerical modeling experiments to understand the tidal circulation in the Kangjin Bay (KB). The tidal circulation in the KB is mostly controlled by the inflow from two channels, Noryang and Daebang which introduce the open ocean water into the northern part of the KB with relatively strong tidal current, while in the southern part of the KB, shallowest region of the entire study area, weak tidal current prevails. The model prediction of the sea level agrees with observed records at skill scores exceeding 90 % in terms of the four major tidal constituents (M2, S2, K1, O1). However, the skill scores for the tidal current show relatively lower values of 87, 99, 59, 23 for the semi-major axes of the constituents, respectively. The tidal ellipse parameters in the KB are such that the semi-major axes of the ellipse for M2 range from 1.7 to 38.5 cm/s and those for S2 range from 0.5 to 14.4 cm/s. The orientations of the major-axes show parallel with the local isobath. The eccentricity values at various grid points of ellipses for M2 and S2 are very low with 0.2 and 0.06 on the average, respectively illustrating that the tidal current in the KB is strongly recti-linear. The magnitude of the tidal residual current speed in the KB is on the order of a few cm/s and its distribution pattern is very complex. One of the most prominent features is found to be the counter-clockwise eddy recirculation cell at the mouth of the Daebang Channel. © Korea Ocean Research and Development Institute(KORDI) and the Korean Society of Oceanography(KSO) 2007.

引用

页码：153 / 163

页数：10

共 28 条

[1]

Blumberg A.F., Mellor G.L., A description of a three-dimensional coastal ocean circulation model, Three-Dimensional Coastal Ocean Models, Coastal Estuarine Sci., 4, pp. 1-16, (1987)

[2]

Blumberg A.F., Khan L.A., John J.P., Three-Dimensional Hydrodynamic Model of New York Harbor Region, J. Hydr. Eng., 125, 8, pp. 799-816, (1999)

[3]

Cai S., Huang Q., Long X., Three-dimensional numerical model study of the residual current in the South China Sea, Oceanologica Acta, 26, 5, pp. 597-607, (2003)

[4]

Fong D.A., Dynamics of Freshwater Plumes: Observations and Numerical Modeling of the Wind Forced Response and Along-shore Freshwater Transport, (1998)

[5]

Foreman M.G.G., Manual for Tidal Current Analysis and Prediction. Pacific Marine Science Report 78-6, pp. 39-39, (1978)

[6]

Gomez-Valdes J., Delgado J.A., Dworak J.A., Overtides, compound tides and tidal-residual current in Ensenada de la Paz Lagoon, Baja California Sur, Mexico, Geophysica Int., 42, pp. 623-634, (2003)

[7]

Horrevoetsa A.C., Savenijea H.H.G., Schuurmana J.N., Graasa S., The influence of river discharge on tidal damping in alluvial estuaries, J. Hydrol., 294, pp. 213-228, (2004)

[8]

Ji Z.G., Hu G., Shen J., Wan Y., Three-dimensional modeling of hydrodynamic processes in the St. Lucie Estuary, Estuar. Coast. Shelf Sci., 73, pp. 188-200, (2007)

[9]

Jung K.Y., Three-Dimensional Numerical Modeling of Tidal, Wind-Driven and Density Currents in the Kangjin bay, South Sea, Korea, pp. 130-130, (2007)

[10]

Kourafalou V.H., Oey L., Wang J., Lee T.N., The fate of river discharge on the continental shelf, 1, Modeling the river plume and inner shelf coastal current, J. Geophys. Res., 101, pp. 3415-3434, (1996)

← 1 2 3 →