Wave models for Eleuthera, Northern Bahamas ...

As global climate warms and sea level rises, coastal areas will be subject to more frequent extreme flooding and hurricanes. Geologic evidence for extreme coastal storms during past warm periods has the potential to provide fundamental insights into their future intensity. Recent studies argue that...

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Bibliographic Details
Main Authors: Rovere, Alessio, Casella, Elisa, Harris, Daniel L, Lorscheid, Thomas, Nandasena, Napayalage A K, Dyer, Blake, Sandstrom, Michael R, Stocchi, Paolo, D'Andrea, William J, Raymo, Maureen E
Format: Dataset
Language:English
Published: PANGAEA 2017
Subjects:
Center for Marine Environmental Sciences MARUM
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.880687
https://doi.pangaea.de/10.1594/PANGAEA.880687
Description
Summary:As global climate warms and sea level rises, coastal areas will be subject to more frequent extreme flooding and hurricanes. Geologic evidence for extreme coastal storms during past warm periods has the potential to provide fundamental insights into their future intensity. Recent studies argue that during the Last Interglacial (MIS 5e, ~128-116 ka) tropical and extratropical North Atlantic cyclones may have been more intense than at present, and may have produced waves larger than those observed historically. Such strong swells are inferred to have created a number of geologic features that can be observed today along the coastlines of Bermuda and the Bahamas. In this paper, we investigate the most iconic among these features: massive boulders atop a cliff in North Eleuthera, Bahamas. We combine geologic field surveys, wave models, and boulder transport equations to test the hypothesis that such boulders must have been emplaced by storms of greater-than-historical intensity. By contrast, our results suggest ... : 2D (SWAN) and 1D (XBeach) wave models for different grid domains in Eleuthera, North Bahamas. Modeled events are the Perfect Storm (1991), Hurricane Andrew (1992) and Hurricane Sandy (2012). The models boundary conditions and forcing is described in the SI Annex of the paper.The folder 2D WAve_models contains the results of SWAN runs for RSL=0m. Each file refers to one of the computational grids.The folder 1D Wave_models contains the results of XBeach runs for RSL=0,3,6,9,12m. Each file represents three hours of simulations. ...

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