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HyCReWW: A hybrid coral reef wave and water level metamodel

March 28, 2019

Wave-induced flooding is a major coastal hazard on tropical islands fronted by coral reefs. The variability of shape, size, and physical characteristics of the reefs across the globe make it difficult to obtain a parameterization of wave run-up, which is needed for risk assessments. Therefore, we developed the HyCReWW metamodel to predict wave run-up under a wide range of reef morphometric and offshore forcing characteristics. Due to the complexity and high dimensionality of the problem, we assumed an idealized one-dimensional reef profile, characterized by seven primary parameters. XBeach Non-Hydrostatic was chosen to create the synthetic dataset, and Radial Basis Functions implemented in MATLAB® were chosen for interpolation. Results demonstrate the applicability of the metamodel to obtain fast and accurate results of wave run-up for a large range of intrinsic reef morphologic and extrinsic hydrodynamic forcing parameters, offering a useful tool for risk management and early warning systems.

Publication Year 2019
Title HyCReWW: A hybrid coral reef wave and water level metamodel
DOI 10.1016/j.cageo.2019.03.004
Authors Ana C. Rueda, Laura Cagigal, Stuart Pearson, Jose Antolínez, Curt D. Storlazzi, Ap van Dongeren, Paula Camus, Fernando J. Mendez
Publication Type Article
Publication Subtype Journal Article
Series Title Computers & Geosciences
Index ID 70202838
Record Source USGS Publications Warehouse
USGS Organization Pacific Coastal and Marine Science Center