Virginia Institute of Marine Science
In an earlier report (Boon, 1998), findings were presented from a wave modeling study whose purpose was to investigate the effects of sand mining on the nearshore wave regime at Sandbridge, Virginia (Fig . 1). Using a phase-resolving spectral wave model, REF/DIF S (Kirby and Ozkan, 1992), a representative set of hypothetical storm waves was propagated across a 20 km section of the inner shelf from approximately the 20 m depth contour offshore to the 11 m depth contour inshore . Subsequent simulations were then made that tested local effects of shoaling and refraction on wave heights within a fine-scale subgrid extending from Sandbridge Shoal near the 10 m depth contour to the surf zone immediately in front of Sand bridge (Fig. 1 ).
Two test cases were used:
Case 1 - Existing bottom configuration based on pre-1998 charted depths,
Case 2- Bottom with uniform removal of bed material to a depth of3 meters below grade within a designated borrow area on Sandbridge Shoal .
Dredging -- Environmental aspects -- Virginia -- Sandbridge Beach, Ocean waves -- Virginia -- Sandbridge Beach
Boon, J. D., & Kim, S. C. (1999) Report on spectral wave modeling : extended study of the effects of sand mining on the wave regime at Sandbridge, Virginia - Comparison of results using a phase-revolving and a phase-averaging spectral wave model (REF/DIF S and SWAN). Virginia Institute of Marine Science, William & Mary. https://scholarworks.wm.edu/reports/2296