Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles
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 Guadeloup...
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ftcopernicus:oai:publications.copernicus.org:nhess27700 2023-05-15T17:33:49+02:00 Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles Krien, Y. Dudon, B. Roger, J. Zahibo, N. 2018-09-27 application/pdf https://doi.org/10.5194/nhess-15-1711-2015 https://nhess.copernicus.org/articles/15/1711/2015/ eng eng doi:10.5194/nhess-15-1711-2015 https://nhess.copernicus.org/articles/15/1711/2015/ eISSN: 1684-9981 Text 2018 ftcopernicus https://doi.org/10.5194/nhess-15-1711-2015 2020-07-20T16:24:30Z 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. Text North Atlantic Copernicus Publications: E-Journals Natural Hazards and Earth System Sciences 15 8 1711 1720 |
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Copernicus Publications: E-Journals |
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English |
description |
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. |
format |
Text |
author |
Krien, Y. Dudon, B. Roger, J. Zahibo, N. |
spellingShingle |
Krien, Y. Dudon, B. Roger, J. Zahibo, N. Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
author_facet |
Krien, Y. Dudon, B. Roger, J. Zahibo, N. |
author_sort |
Krien, Y. |
title |
Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
title_short |
Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
title_full |
Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
title_fullStr |
Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
title_full_unstemmed |
Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles |
title_sort |
probabilistic hurricane-induced storm surge hazard assessment in guadeloupe, lesser antilles |
publishDate |
2018 |
url |
https://doi.org/10.5194/nhess-15-1711-2015 https://nhess.copernicus.org/articles/15/1711/2015/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
eISSN: 1684-9981 |
op_relation |
doi:10.5194/nhess-15-1711-2015 https://nhess.copernicus.org/articles/15/1711/2015/ |
op_doi |
https://doi.org/10.5194/nhess-15-1711-2015 |
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Natural Hazards and Earth System Sciences |
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15 |
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8 |
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1711 |
op_container_end_page |
1720 |
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1766132440940675072 |