The National Science Foundation (NSF) Division of Ocean Sciences awarded a $383,008 Project Grant to the University of Washington to analyze oceanographic data collected in the lee of the Hirase Seamount in the Tokara Strait, south of Japan during 2021-2022. The data, which includes observations of temperature, salinity, velocity, and turbulent dissipation, will be used to investigate strong nonlinear interactions between the Kuroshio Current and the seamount, and the associated turbulence. The project aims to identify the dominant nonlinear terms in the momentum and buoyancy equations, quantify potential vorticity anomalies, and determine the instability mechanisms responsible for energetic turbulence layers downstream of the seamount. This research falls under the NSF Geosciences program (CFDA 47.050) and is expected to be completed by December 31, 2025. No subawards are planned for this grant.
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