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| Titel |
Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
| VerfasserIn |
Y. Krien, B. Dudon, J. Roger, N. Zahibo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 15, no. 8 ; Nr. 15, no. 8 (2015-08-03), S.1711-1720 |
| Datensatznummer |
250119630
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| Publikation (Nr.) |
 copernicus.org/nhess-15-1711-2015.pdf |
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| Zusammenfassung |
| Current storm surge hazard maps in the French West Indies are
essentially based on simple statistical methods using limited
historical data and early low-resolution models which do not take
the effect of waves into account. In this paper, we infer new
100-year and 1000-year surge levels in Guadeloupe from the numerical
modelling of storm surges induced by a large set of synthetic events
that are in statistical agreement with features of historical
hurricanes in the North Atlantic Basin between 1980 and 2011.
Computations are performed using the wave-current coupled model
ADCIRC–SWAN with high grid resolutions (up to 40–60 m) in the
coastal and wave dissipation areas. This model is validated against
observations during past events such as hurricane HUGO (1989).
Results are generally found to be in reasonable agreement with past
studies in areas where surge is essentially wind-driven, but found
to differ significantly in coastal regions where the transfer of
momentum from waves to the water column constitutes a non-negligible
part of the total surge. The methodology, which can be applied to
other islands in the Lesser Antilles, allows storm surge level maps
to be obtained that can be of major interest for coastal planners
and decision makers in terms of risk management. |
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