Abstract
Abstract Diurnal tidal constituents K1 and O1 are calculated in the Nordic seas with a numerical space grid of about 10 km. This allows resolution of the structure of enhanced tidal currents generated by near-resonant topographic vorticity waves at the Yermak Plateau. The resonance properties of the Yermak Plateau are investigated in the period range 20–30 h. The main resonance peak is close to the 26-h period, and the resonance curve envelops a wide range of periods. This broad resonance peak explains the enhancement of both diurnal tidal components separated by a 2-h difference and the stability of the resonance phenomena. The model results describe well the observed flow pattern over the Yermak Plateau, including the current ellipse rotation.
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