Morphological Characteristic at Entrance of Lake Saroma and Development of Numerical Model

Abstract

A jetty construction at the east side of the entrance of Lake Saroma has been greatly influenced on the morphological characteristics. In this study, the field observations (wave and current measurement, sediment sampling survey, and bathymetric survey) were conducted and the results were analyzed to investigate the mechanism of morphological change after the east jetty construction started. A numerical model is developed based on the sediment transport characteristic and the simulated results give a reasonable agreement with the observed bathymetric data and successfully verify the appropriate performance for the prediction.