Simulating Particulate Organic Advection along Bottom Slopes to Improve Simulation of Estuarine Hypoxia and Anoxia

Abstract

Abstract. In a coupled hydrodynamic and water quality model, the hydrodynamic model provides forces for movement of simulated particles in the water quality model. A proper simulation of organic solid movement from shallow to deep waters is important to simulate summer hypoxia in the deepwater. It is necessary to have a full blown particle transport model that focuses organic particulates' resuspension and transport. This paper presents an approach to move volatile solids from the shoals to the channel by simulating movement of particulate organics due to slopes based on an example in the Chesapeake Bay eutrophication model. Implementations for the simulation of this behavior in computer parallel processing are discussed.