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Numerical Simulation for Behavior of Tidal Elevation and Tidal Currents in the South Sea  

Kwon, Seok-Jae (Ocean Research Lab., National Oceanographic Research Institute)
Kang, Tae-Soon (GeoSystem Research Corp.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.19, no.3, 2007 , pp. 253-265 More about this Journal
Abstract
This study applied the previous results of the NAO model, a tidal correction model, to the open boundary condition for the behavior of tidal elevation and tidal currents in the South Sea. This study used the EFDC model considering the wetting and drying problem and using the $\sigma-coordinate$ as a vertical coordinate and generated two mesh cases of the constant grid size of 2.0 km and the variable grid size of $0.5\sim2.0km$. The numerical results for the tides showed that the predicted results were in quite good agreements with the observational data acquired from the tidal stations of the NORI. The predicted tides were observed to propagate from the east area to the west area in the South Sea. The verification results reveal that the numerical results are more correlated with the measured tidal data as the grid size decreases. The grid size of 2 km results in proper simulation of tidal currents in wide waterway and offshore area whereas the numerical results from the grid size of 0.5 km tend to somewhat underestimate the tidal currents affected by narrow waterway and topography in inner-bay.
Keywords
South Sea; tidal elevation and tidal currents; numerical simulation; EFDC model;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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