Storm surge simulation using POM and a revisitation of dynamics of sea surface elevation short term variation

Abstract

We have done several three-dimensional numerical storm surge simulations using the terrain-following Princeton ocean model (POM) with horizontally uniform stratification in the area of Tosa Bay (maximum depth=4,800m). Results show slightly larger peak surges with finer vertical resolution or stronger stratification. We report the effects of the vertical mixing form on the simulated sea level. The balance of forces in momentum equations are studied in some detail. A simple explanation is proposed as to explain why larger peak surges are found as vertical resolution becomes finer.