Permalink : http://hdl.handle.net/2115/90245

JaLCDOI : 10.14943/bull.fish.73.1.33

KEYWORDS : Near-inertial internal gravity waves;current velocity;non-traditional f-plane;Toyama Bay

The present study analyses current velocity data moored in Toyama Bay, where the incidence of near-inertial waves is restricted to southward propagation from the north, and provides evidence of their southward propagation from the flattened shape of the observed velocity ellipse.　The results support the existence of near-inertial waves in a ‘non-traditional f-plane’ as pointed out by Echigo et al. (2022).　Furthermore, the ray-path of its southward propagating near-inertial waves was found to be almost identical to the upward angle of the reflected waves and the slope gradient of the seabed near the bay-head.　The rotating oscillatory currents associated with these near-inertial waves are expected to roll up the seabed mud and generate the turbidity flows.