Print Email Facebook Twitter Gulf of Mexico hurricane wave simulations using SWAN: Bulk formula-based drag coefficient sensitivity for Hurricane Ike Title Gulf of Mexico hurricane wave simulations using SWAN: Bulk formula-based drag coefficient sensitivity for Hurricane Ike Author Huang, Y. Weisberg, R.H. Zheng, L. Zijlema, M. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2013-08-13 Abstract The effects of wind input parameterizations on wave estimations under hurricane conditions are examined using the unstructured grid, third-generation wave model, Simulating WAves Nearshore (SWAN). Experiments using Hurricane Ike wind forcing, which impacted the Gulf of Mexico in 2008, illustrate that the default and recommended setting for the wind input parameterization tends to overestimate the maximum significant wave heights in the deep Gulf of Mexico by about 2 m when comparing with observations. The overestimation can be remedied either by adjusting the maximum value of the surface drag coefficient or by substituting a high wind speed formula for the default low to moderate wind speed. Because of added dissipative effects in the shallow coastal areas, the overestimations found in deep water have limited effect on the waves in the near shore shallower waters. Thus, previous wave model results using a low to moderate wind speed bulk formula may still be reliable in waters shallower than about 20–30 m even while overestimating significant wave heights in deeper waters under hurricane conditions. Subject significant wave heightwave simulationshelf shoulderhigh wind speedstorm surgehurricane To reference this document use: http://resolver.tudelft.nl/uuid:a06c3c24-159d-4244-899e-d4657bb680e7 DOI https://doi.org/10.1002/jgrc.20283 Publisher American Geophysical Union Embargo date 2014-02-13 ISSN 2169-9275 Source Journal of Geophysical Research: Oceans, 118 (8), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 American Geophysical Union Files PDF Zijlema_2013.pdf 3.11 MB Close viewer /islandora/object/uuid:a06c3c24-159d-4244-899e-d4657bb680e7/datastream/OBJ/view