Abstract

A three dimensional coastal ocean system for Monterey Bay (MOB) is developed using numerical grid generation to study the summer circulation. The system is a primitive equation coastal ocean modeling system, which consists of a coastal ocean model, numerical grid generation routines, and a grid package which allows the model to be coupled to model grids. In this coastal ocean system, a curvilinear nearly-orthogonal (CNO) grid is used to enhance the model numerical solution. The MOB model has 28 sigma vertical levels, and the CNO coastlinefollowing numerical grid has 131 x 131 grid points, which cover a domain of 150 km by 150 km. The model has horizontal resolutions of 200 m to 2 km, free surface dynamics, and realistic coastlines and bottom bathymetry. The model code is written for a multi-block grid, but a single-block CNO grid is demonstrated for the MOB simulations. The MOB model and the associated grid are used to simulate summer circulation and reproduce the MOB basic physics such as coastal currents and upwelling locations.

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