NDLI: Effect of Open Boundary Conditions and Bottom Roughness on Tidal Modeling around the West Coast of Korea

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Effect of Open Boundary Conditions and Bottom Roughness on Tidal Modeling around the West Coast of Korea

Content Provider	MDPI
Author	Nguyen, Van Lee, Minjae
Copyright Year	2020
Description	The aim of this study was to investigate the effect of open boundary conditions and bottom roughness on the tidal elevations around the West Coast of Korea (WCK) using an open-source computational fluids dynamics tool, the TELEMAC model. To obtain a detailed tidal forcing at open boundaries, three well-known assimilated tidal models—the Finite Element Solution (FES2014), the Oregon State University TOPEX/Poseidon Global Inverse Solution Tidal Model (TPXO9.1) and the National Astronomical Observatory of Japan (NAO.99Jb)—have been applied to interpolate the offshore tidal boundary conditions. A number of numerical simulations have been performed for different offshore open boundary conditions, as well as for various uniform and non-uniform bottom roughness coefficients. The numerical results were calibrated against observations to determine the best fit roughness values for different sub-regions within WCK. In order to find out the dependence of the tidal elevation around the WCK on the variations of open boundary forcing, a sensitivity analysis of coastal tide elevation was carried out. Consequently, it showed that the tidal elevation around the WCK was strongly affected by local characteristics, rather than by the offshore open boundary conditions. Eventually, the numerical results can provide better quantitative and qualitative tidal information around the WCK than the data obtained from assimilated tidal models.
Starting Page	1706
e-ISSN	20734441
DOI	10.3390/w12061706
Journal	Water
Issue Number	6
Volume Number	12
Language	English
Publisher	MDPI
Publisher Date	2020-06-15
Access Restriction	Open
Subject Keyword	Water Marine Engineering West Coast of Korea (wck) Tidal Elevation Open Boundary Condition Numerical Modeling Telemac-2d
Content Type	Text
Resource Type	Article

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