File:MODELING OF MORPHOLOGICAL RESPONSES TO A STORM EVENT DURING TREX13 (IA modelingofmorpho1094564059).pdf

Munitions in the underwater environment might be harmful to marine life and human health when their chemical constituents are released into the ocean. A reliable model to appropriately forecast munition location and burial depth can improve risk assessment and reduce costs related to munition remediation actions. Munition mobility and burial models exist to determine the location and burial depth, but they require localized parameters, such as waves and currents. Up to now, nearshore process models to compute these parameters have not been tested for fidelity against observable storm-event experiment results, including munition mobility and near-seabed hydrodynamics, and sediment transport. This study presents an environment hindcasting model for coastal seafloor hydrodynamic and morphologic conditions in a non-muddy seabed using Delft3D software. The model output is compared with measurements made on the coast of Panama City, Florida, during the TREX13 experiment in 2013. The objective is to model the morphological responses to a storm event that occurred in the middle of the experiment period. The results suggest that the model can adequately simulate the flow and the bottom changes measured during the TREX13 experiment, which includes significant wave energy and the accretion of sediment of approximately 15 cm in 24 hours.