MODELING THE DYNAMICS OF A BAR SYSTEM AT DUCK, NC, USA

B. Boczar-Karakiewicz, W. Romanczyk, J.L. Bona, E.B. Thornton

Abstract


The temporal evolution of nearshore bar topography forced by incident, wind-generated waves is predicted by a two-dimensional (2D) model. Predictions are compared with observed bathymetry from Duck, North Carolina, USA, acquired by the Field Research Facility (FRF) of the US Corps of Engineers over a period of 17 years (1980 - 1997). The model simulations presented are seen to approximate well the formation of the most frequently-observed shore-parallel bars at Duck as well as dynamic changes in their pattern caused by storm waves and varying mean water level.

Keywords


bar system; Duck, NC; bar modeling

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