Abstract
This paper describes the investigation of dissipation and vertical mixing in an enclosed bay, Tokyo Bay. The field experiment was carried out on 17th of November, 2004 along the longitudinal section of Tokyo Bay to measure water temperature, salinity, turbidity and micro-structure of turbulence. It was revealed from vertical density distribution, which was identified by salinity and water temperature, and vertical turbidity distribution that either large velocity due to internal waves or mixing due to internal wave breaking caused resuspension of seabed sediment. Dissipation obtained from field experiment agreed well with those from numerical simulation. This may thus provide evidence that turbulent closure scheme used in the numerical simulation is valid to model flow fields in Tokyo Bay.
