open access

https://doi.org/10.14943/bull.fish.73.1.33

https://hdl.handle.net/2115/90245

Near-inertial Internal Gravity Waves in the Deep Layer of Toyama Bay

日本語

Toyama Bay

2023-08-04

北海道大学大学院水産科学研究院

Bulletin of Fisheries Sciences, Hokkaido University

73(1)

33-40

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.

紀要論文

Version of Record

2435-3353