Narcisse Zahibo

Université des Antilles

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Efim Pelinovsky

Institute of Applied Physics

Yann Krien

Laboratoire d’Études en Géophysique et Océanographie Spatiales

Bernard Dudon

Université des Antilles

Gaël Arnaud

Université des Antilles

Jean Roger

GNS Science

Andrey Kurkin

Nizhny Novgorod State Pedagogical University

Raphaël Cécé

Géosciences Montpellier

Irina Nikolkina

Tallinn University of Technology

Tatiana Talipova

Institute of Applied Physics

Didier Bernard

Université des Antilles

Cooperative Institutions

Nizhny Novgorod State Pedagogical University

Nizhny Novgorod State Technical University

Université des Antilles

Middle East Technical University

Institut de Recherche pour le Développement

Centre National de la Recherche Scientifique

Russian Academy of Sciences

Géosciences Montpellier

Institute of Applied Physics

V.I. Il'ichev Pacific Oceanological Institute

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Tsunami in Guadeloupe (Caribbean Sea)

The Open Oceanography Journal (2010)

Irina Nikolkina Narcisse Zahibo Efim Pelinovsky

Detailed analysis of historical data of tsunamis for 1498-2008 period in Guadeloupe (French West Indies, Caribbean sea), collected in different books, papers and sites is presented.Concerning validity scale 10 events are selected as true and almost true, 6 tsunami events were generated by underwater earthquakes; 3 events -by volcano eruptions, and one was a teletsunami.The geographical and temporal distributions of tsunami events are studied.

Caribbean island

10.2174/1874252101004010044

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Citations (11)

Storm surge induced by hurricane Omar on the Caribbean coasts, example of the port of Deshaies in Guadeloupe

EGU General Assembly Conference Abstracts (2009)

J. F. Dorville Narcisse Zahibo

Storm Surge

Port (circuit theory)

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Citations (1)

Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles

Yann Krien Bernard Dudon Jean Roger Narcisse Zahibo

Abstract. 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 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 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 to obtain storm surge level maps that can be of major interest for coastal planners and decision makers in terms of risk management.

Storm Surge

Atlantic hurricane

10.5194/nhessd-3-401-2015

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Citations (13)

A 30-m scale modeling of extreme gusts during Hurricane Irma (2017) landfall on very small mountainous islands in the Lesser Antilles

Raphaël Cécé Didier Bernard Yann Krien Frédéric Leone Thomas Candela

Abstract. In view of the high vulnerability of the Lesser Antilles small islands to cyclonic hazards, realistic very fine scale numerical simulation of hurricane-induced winds is essential to prevent and manage risks. The present innovative modeling aims at combining the most realistic simulated strongest gusts driven by tornado-scale vortices within the eyewall and the most realistic complex terrain effects. The Weather Research and Forecasting (WRF) model with the Nonlinear Backscatter and Anisotropy (NBA) Large Eddy Simulation (LES) configuration was used to reconstruct the devastating landfall of category 5 Hurricane Irma (2017) on Saint Barthélemy and Saint Martin islands. The results pointed out that the 30-m scale seems necessary to simulate intense 400-m scale vortices leading to extreme peak gusts like 132 m s−1 over sea. Risk areas associated with terrain gust speed-up factors greater than one have been identified for the two islands. The comparison between the simulated gusts and the remote sensing building damages highlighted the major role of structure strength linked with the socio-economic development of the territory. The present modeling method could be easily extended to other small mountainous islands to improve the understanding of observed past damages and to develop safer urban management and appropriate building standards.

Landfall

Natural hazard

Atlantic hurricane

10.5194/nhess-2020-241

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Citations (2)

Hurricane Omar Waves Impact on the West Coast of the Guadeloupe Island, October 2008

The Open Oceanography Journal (2010)

M. Dorville J-F Narcisse Zahibo

A swell produced by the Hurricane Omar touched the west Guadeloupean coasts during the period of the 15 th to the 17 th in October 2008.The waves of this swell hit different islands of the Greater and Lesser Antilles arc.The cost of the destruction of this swell was evaluated at $ 46 million.On the island of Basse-Terre in the archipelago of Guadeloupe all the exposed zone, the quiet west coast was impacted by waves of observed height around 2.5 to 3m.The totality of this zone was modified by the effects of the waves, on more 100m in the land.By a complete observation of the Hurricane Omar, the causes and the consequences of the waves are described.The propagation of the waves on the coast and in the land of the west part of the island of Basse-Terre is particularly described.The compilation of the different testimonies, the observations on several spots of the coast and the buoys measurements in the Caribbean Sea allow to give the synoptic of the event and to qualify the consequences of the impact of the waves.To give more accurate values of the characteristics of the waves, some numerical simulations of the wave propagation were made with SWAN under realistic conditions and near the coast.The numerical simulation and the measurements are in accordance with the observations and the different testimonies, waves of 2.5-3m height and 12s of peak period.To conclude, some indications for the future are given to help to protect the coastal population.

Archipelago

Swell

West coast

10.2174/1874252101004010083

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Citations (6)

Strongly nonlinear steepening of long interfacial waves

Nonlinear processes in geophysics (2007)

Narcisse Zahibo Alexey Slunyaev Tatiana Talipova Efim Pelinovsky Andrey Kurkin

Abstract. The transformation of nonlinear long internal waves in a two-layer fluid is studied in the Boussinesq and rigid-lid approximation. Explicit analytic formulation of the evolution equation in terms of the Riemann invariants allows us to obtain analytical results characterizing strongly nonlinear wave steepening, including the spectral evolution. Effects manifesting the action of high nonlinear corrections of the model are highlighted. It is shown, in particular, that the breaking points on the wave profile may shift from the zero-crossing level. The wave steepening happens in a different way if the density jump is placed near the middle of the water bulk: then the wave deformation is almost symmetrical and two phases appear where the wave breaks.

Kondratiev wave

10.5194/npg-14-247-2007

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Citations (18)

Breaking of storm waves on sand and reef zone in the Lesser Antilles Arc

EGU General Assembly Conference Abstracts (2010)

Jean-François Dorville Hugues Berthelot Narcisse Zahibo

The most part of the exposed coastal zone of the Lesser Antilles Arc are composed by sand and coral reef. The high frequencies of passage of cyclones near these islands and anticyclone’s swell subject them to waves of large amplitude. These waves are 4 to 5 times lager to the normal conditions. The weak slopes observed on these zones are particularly sensitive to this type of waves and cause the process of surfing. The mode of dissipation of these waves influenced the run-up and the floods on the coast. The surf zones are situated in 5 in 20 meters of the line of coast. A displacement of sea water towards the coast line is provoked by the breaking of the waves. These quantities of water are held by the particularly bathymetry of these islands and provoke a raised of the sea level. The propagation of the waves are allowed by the sea elevation in the surf zone

Swell

Surf zone

Anticyclone

Fringing reef

Storm Surge

Source

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Citations (0)

Tsunami generated by the volcano eruption on July 12-13 at Montserrat, Lesser Antilles

Efim Pelinovsky Narcisse Zahibo P. N. Dunkley Marie Edmonds Richard A. Herd

A major collapse of a lava dome occurred at the Soufriere Hills Volcano (Montserrat, Lesser Antilles), culminating late in the evening (11:35 PM local time) on July 12, 2003 (03:35 GMT on 13 July). This generated a tsunami, which was recorded on Montserrat 2-4 km from the generating area and Guadeloupe, 50 km from Montserrat. Results of field surveys are presented. Tsunami wave height on Montserrat may have been about 4 m according to the location of a strandline of charred trees and other floating objects at Spanish Point on the east coast of the island. The wave height on Guadeloupe according to “direct” witnesses was about 0.5-1 m at Deshaies and near Plage de la Perle. The tsunami at Deshaies caused the scattering of boats as confirmed by fishermen and local authorities. Data from the field survey are in agreement with the predicted tsunami scenario obtained by numerical simulation.

Dome (geology)

Submarine volcano

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Citations (46)

Tsunami hazard assessment of Guadeloupe Island (F.W.I.) related to a megathrust rupture on the Lesser Antilles subduction interface

Natural hazards and earth system sciences (2013)

Jean Roger Bernard Dudon Narcisse Zahibo

Abstract. The French Caribbean Archipelago of Guadeloupe is located over the Lesser Antilles active subduction zone, where a handful of earthquakes have reached magnitudes of Mw = 7.0 (moment magnitude) and more. According to available catalogs, these earthquakes have been able to trigger devastating tsunamis, either directly by the shake or indirectly by induced landslides. The Guadeloupe Archipelago is known to have suffered from several violent earthquakes, including the 1843 Mw ~ 8.5 megathrust event. In this study, we discuss the potential impact of a tsunami generation scenario of a Mw = 8.5 rupture at the subduction interface using numerical modeling and high resolution bathymetric data within the framework of tsunami hazard assessment for Guadeloupe. Despite the fact that the mystery remains unresolved concerning the lack of historical tsunami data for the 1843 event, modeling results show that the tsunami impact is not uniformly distributed in the whole archipelago and could show important maximum wave heights. This is easily explained by the bathymetry and the presence of several islands around the main island leading to resonance phenomena, and because of the existence of a fringing coral reef partially surrounding Guadeloupe Island and its satellites. We then discuss the role of source parameters, the arrival times and the protective role of fringing coral reefs surrounding the islands, using tsunami modeling applied on two Guadeloupian touristic coastal places: Sainte-Anne and Saint-François.

Archipelago

Tsunami earthquake

Martinique

Caribbean island

Moment magnitude scale

10.5194/nhess-13-1169-2013

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Citations (15)

Probabilistic hurricane-induced storm surge hazard assessment in Guadeloupe, Lesser Antilles

Natural hazards and earth system sciences (2015)

Yann Krien Bernard Dudon Jean Roger Narcisse Zahibo

Abstract. 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.

Storm Surge

Atlantic hurricane

10.5194/nhess-15-1711-2015

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Citations (41)