Parameterization of Maximum Significant Wave Heights in Coastal Regions due to Hurricanes

Abstract

A method for expedient characterization of maximum nearshore wave heights due to hurricanes is described. This method, referred to as the wave response function (WRF) method, relates hurricane parameters to maximum wave heights by fitting coefficients from the modified Shore Protection Manual (SPM) forecasting method to results from numerical surge-wave models. The method was applied to numerous locations along the U.S. Gulf Coast: Corpus Christi, Texas; Gulfport, Mississippi; and Panama City, Florida. The WRF method is shown to have the most skill of all similar methods tested. Similar accuracy levels were obtained across all test sites. Data from Hurricane Ike in 2008 provided validation for the method. Although not intended for forecasting, this approach can be applied to risk analysis and extreme value statistics with significantly less computational effort than the use of numerical models.