Numerical Modeling of Coastal Dredged Material Placement Study at Noyo Harbor, CA.

摘要

This paper describes the numerical modeling of nearshore placement of dredged material at Noyo Harbor, CA. The numerical models include the US Army Corps of Engineers (USACE) Short-Term FATE model (STFATE), Coastal Modeling System (CMS), and Particle Tracking Model (PTM). The STFATE simulates the spatial distribution of dredged material in open water after it has passed through the water column on release of the barge load. The CMS calculates wave transformation, flow circulation, water levels, sediment transport, and morphology change. The modeling provides technical information necessary to evaluate a location site that is economically feasible for the optimum sediment placement. The model simulation showed small onshore sediment transport in typical summer and winter months. The calculated fine sediment transport during the dredged material release at the placement site indicated more longshore movement as the result of strong wind driven current along the coast.