SIMULATION OF BOTTOM SEDIMENTS TRANSPORTATION CONSIDERING THE EFFECT OF WIND WAVE IN LAKE SUWA

Abstract

We have developed the model to describe the bottom sediments transportation such as the resuspension and movement in Lake Suwa. In this model, the effect of wind wave is taken into account, because wind wave plays an important role in the resuspension of bottom sediments in shallow area especially. As a result, it could be simulated that the wind wave has a greater influence than the current on the resuspension of bottom sediments in shallow and long-fetch area. Moreover, the resuspended sediments are transferred offshore by the vertical water circulation in this simulation.