IMPACT OF RIVER OUTFLOW ON ISE BAY ESTIMATED BY USING COUPLED RIVER DISCHARGE AND OCEAN CIRCULATION MODEL

Abstract

 A coupled river discharge and ocean circulation model was developed, which aimed for the effective tool for the integrated environment management of the watershed area including rivers and ocean. The model consists of the distributed hydrological model, the unsteady flow model near river mouse, the ocean circulation model and the advective diffusion model. These four models are connected each other through the boundary conditions. We applied the model to the heavy rainfall case around Kiso-sansen rivers and Ise Bay during April 2003. It was concluded that the river water level calculation corresponded well to the observation, and the calculated suspended sediment distribution was qualitatively conincident with the MODIS satellite observation.