Author(s)

Jeffrey P. Laible

Abstract

Mass Conservation in shallow water storm surge computations Jeffrey P. Laible Department of Civil and Environmental Engineering University of Vermont Burlington, Vermont 05405 E-mail: laible@emba. uvm. edit Abstract Storm surge computations involve both an applied pressure field and a strong wind stress loading. The shallow water equation are commonly used for tidal simulations and have been thoroughly investigated for this type of loading. The storm surge computations on the other hand, have not been as extensively investigated. In this paper we examine the behavior of both the primitive and wave equation form of the shallow water equations and observe some deficiencies in mass conservation. Using a filtered primitive equation formulation and an extended derivative operator, improved solutions can be obtained. 1 Introduction The solution of the shallow water equations for tidal simulations has been successfully accomplished by formulations based on both the primitiv

Keywords