HyCReWW: A hybrid coral reef wave and water level metamodel

Computers & Geosciences
By: , and 

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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.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title HyCReWW: A hybrid coral reef wave and water level metamodel
Series title Computers & Geosciences
DOI 10.1016/j.cageo.2019.03.004
Volume 127
Year Published 2019
Language English
Publisher Elsevier
Contributing office(s) Pacific Coastal and Marine Science Center
Description 6 p.
First page 85
Last page 90