NUMERICAL SIMULATION OF DEFORMATION AND SEGMENTATION OF A TRIANGULAR LAKE

Abstract

 The development of sand spits with rhythmic shape and the segmentation of the lake due to the effect of wind waves in the lake were investigated along the eastern lakeshore of Lake Saroma in eastern Hokkaido by field observation. The segmentation of a shallow water body with triangular shape was studied using the BG model (a 3-D model for predicting beach changes based on Bagnold's concept). The features observed on lakeshore in Lake Saroma were explained well using this numerical model.