COASTAL MODEL TEST BED EVALUATION OF CSHORE HYDRODYNAMIC PREDICTION PERFORMANCE

Abstract

This study evaluates hydrodynamic prediction performance of the onedimensional wave, current and bed-evolution nearshore numerical model CSHORE in Duck, North Carolina spanning 10/1/2015 to 01/1/2017. Specifically, the cross-shore distribution model bias and root-mean-squared error of significant wave height at a cross-shore array of wave gauges are presented. The model-toobservation comparisons of the CSHORE-estimated nearshore currents from three current gauges are also shown. Comparisons for predicted wave runup are evaluated using a dune-mounted terrestrial lidar. The 15 month duration of modeled results allows for assessment of CSHORE hydrodynamic prediction performance during a variety of forcing conditions.