Skip to main content
U.S. flag

An official website of the United States government

BEWARE2 database: A meta-process model to assess wave-driven flooding hazards on morphologically diverse, coral reef-lined coasts

October 24, 2024

This dataset contains the reef profiles and resulting hydrodynamic outputs of the "Broad-range Estimator of Wave Attack in Reef Environments" (BEWARE-2) meta-process modeling system. A process-based, wave-resolving hydrodynamic model (XBeach Non-Hydrostatic+, "XBNH+") was used to create a large synthetic database for use in BEWARE-2, relating incident hydrodynamics and coral reef geomorphology to coastal flooding hazards on reef-lined coasts. Building on previous work, BEWARE-2 improves system understanding of reef hydrodynamics by examining the intrinsic reef and extrinsic forcing factors controlling runup and flooding on reef-lined coasts. We developed this meta-process model using a training dataset of hydrodynamics and wave runup computed by XBNH+ for 440 combinations of water level, wave height, and wave period on 195 morphologically diverse representative reef profiles. In validation, the BEWARE-2 modeling system produced runup results that had a root-mean square error of 0.63 m and bias of 0.26 m, relative to runup of 0.17-20.9 m simulated by XBNH+ for a large range of oceanographic forcing conditions and for a diverse reef morphologies. This relatively accurate solution is provided by the BEWARE-2 modeling system 4-5 orders of magnitude faster than the full, process-based hydrodynamic model and could therefore be integrated in large-scale early-warning systems for tropical, reef-lined coasts, as well as used for large-scale flood risk assessments.

These data accompany the following publication:
McCall, R.T., Storlazzi, C.D., Roelvink, F.E., Pearson, S.G., de Goede, R., Antolinez, J., 2024, Rapid simulation of wave runup on morphologically-diverse, reef-lined coasts with the BEWARE-2 meta-process model: Natural Hazards and Earth System Sciences, https://doi.org/10.5194/nhess-2024-28.

Publication Year 2024
Title BEWARE2 database: A meta-process model to assess wave-driven flooding hazards on morphologically diverse, coral reef-lined coasts
DOI 10.5066/P16VX5EP
Authors Philip T McCall, Curt D. Storlazzi, Floortje E. Roelvink, Stuart G. Pearson, Roel Goede, Jose A. Antolinez
Product Type Data Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Pacific Coastal and Marine Science Center
Rights This work is marked with CC0 1.0 Universal
Was this page helpful?