HyCReWW: A hybrid coral reef wave and water level metamodel

Ana C. Rueda; Laura Cagigal; Stuart Pearson; Jose Antolínez; Curt D. Storlazzi; Ap van Dongeren; Paula Camus; Fernando J. Mendez

doi:10.1016/j.cageo.2019.03.004

USGS · 70202838

HyCReWW: A hybrid coral reef wave and water level metamodel

Ana C. Rueda·Laura Cagigal·Stuart Pearson·Jose Antolínez·Curt D. Storlazzi·Ap van Dongeren·Paula Camus·Fernando J. Mendez

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Abstract

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.

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Ana C. Rueda, Laura Cagigal, Stuart Pearson, Jose Antolínez, Curt D. Storlazzi, Ap van Dongeren, Paula Camus, Fernando J. Mendez. 2019. HyCReWW: A hybrid coral reef wave and water level metamodel. https://doi.org/10.1016/j.cageo.2019.03.004

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