A numerical experiment of the M2 tide in the Yellow sea
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Semi-diurnal tides in the Yellow Sea are calculated by integrating the shallow water wave equations with frictional and inertial terms.
It is found that the results depend on the bottom friction. In the frictionless case the tidal range is unstably amplified because of the occurrence of resonance of the semi-diurnal tidal component in Inchon Bay. When the bottom friction is in the form of the square of velocity, the results agree fairly well with the observations.
The following results are obtained. First, the tidal range is larger at the coast of the Korean Peninsula than at the China Coast. Second, resonance of the semi-diurnal tide occurs in Inchon Bay. Third, bottom friction is very important in the shallow ocean,i.e., when the bottom friction become large, the phase lag is retarded and the tidal range decreases.
The amplitude and the phase lag calculated in this study agree well with the observations in the case ofΤ b =γb2V¦V¦,γ b 2=0.0026, especially in the coast of the Korean Peninsula.
KeywordsNumerical Experiment Wave Equation Shallow Water Korean Peninsula Water Wave
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