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Abstract:

The Scotia Arc is one of two regions in the Atlantic Ocean with greater potential for tsunami generation from seismic and volcanic sources. A numerical modeling study was undertaken to determine tsunami generation from postulated sources along the Arc and tsunami wave amplification or attenuation along the Patagonian continental shelf. Sea level oscillation represented by a simple sinusoidal wave function applied at the boundary of the numerical grid, which simulated the tsunami entering the computational domain, was implemented as forcing. The validation of this model was carried out by comparing the maximum amplitudes recorded and simulated at Santa Teresita and Mar del Plata (Buenos Aires province) after the occurrence of earthquake and subsequent tsunami in Sumatra (December 2004). From numerical simulations it can be seen that the tsunami propagation is highly affected by bathymetric refraction on the Patagonian continental shelf and the wave amplitude is significantly attenuated on the inner continental shelf. Maximum amplifications were obtained around Malvinas (Falkland) Islands and Burdwood bank because the wave propagates almost without refracting and the shoaling effect is highly significant there. © Springer Science+Business Media B.V. 2008.

Registro:

Documento: Artículo
Título:Vulnerability of the Atlantic Patagonian coast to tsunamis generated by submarine earthquakes located in the Scotia Arc region. Some numerical experiments
Autor:Dragani, W.C.; D'Onofrio, E.E.; Grismeyer, W.; Fiore, M.M.E.; Violante, R.A.; Rovere, E.I.
Filiación:Departamento Oceanografía, Servicio de Hidrografía Naval, ESCM-INUN, Av. Montes de Oca 2124, C1270ABV Buenos Aires, Argentina
Departamento Ciencias de la Atmósfera y los Océanos, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, 2do. piso, Buenos Aires, Argentina
CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917, C1033AAJ Buenos Aires, Argentina
Facultad de Ingeniería, Instituto de Geodesia, Universidad de Buenos Aires, Av. Las Heras 2214, 1127 Buenos Aires, Argentina
Geología Regional, Servicio Geológico Minero Argentino, Av. Julio A. Roca 651, 1067 Buenos Aires, Argentina
Palabras clave:Argentinean continental shelf; Numerical simulation; Oceanography; Scotia Arc; Tsunami; bathymetry; continental shelf; earthquake mechanism; numerical model; seismic source; tsunami; vulnerability; wave attenuation; wave generation; wave propagation; Antarctica; Argentina; Atlantic Ocean; Buenos Aires [Argentina]; Burdwood Bank; Mar del Plata; Patagonian Shelf; Scotia Arc; South America
Año:2009
Volumen:49
Número:3
Página de inicio:437
Página de fin:458
DOI: http://dx.doi.org/10.1007/s11069-008-9289-4
Título revista:Natural Hazards
Título revista abreviado:Nat. Hazards
ISSN:0921030X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0921030X_v49_n3_p437_Dragani

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Citas:

---------- APA ----------
Dragani, W.C., D'Onofrio, E.E., Grismeyer, W., Fiore, M.M.E., Violante, R.A. & Rovere, E.I. (2009) . Vulnerability of the Atlantic Patagonian coast to tsunamis generated by submarine earthquakes located in the Scotia Arc region. Some numerical experiments. Natural Hazards, 49(3), 437-458.
http://dx.doi.org/10.1007/s11069-008-9289-4
---------- CHICAGO ----------
Dragani, W.C., D'Onofrio, E.E., Grismeyer, W., Fiore, M.M.E., Violante, R.A., Rovere, E.I. "Vulnerability of the Atlantic Patagonian coast to tsunamis generated by submarine earthquakes located in the Scotia Arc region. Some numerical experiments" . Natural Hazards 49, no. 3 (2009) : 437-458.
http://dx.doi.org/10.1007/s11069-008-9289-4
---------- MLA ----------
Dragani, W.C., D'Onofrio, E.E., Grismeyer, W., Fiore, M.M.E., Violante, R.A., Rovere, E.I. "Vulnerability of the Atlantic Patagonian coast to tsunamis generated by submarine earthquakes located in the Scotia Arc region. Some numerical experiments" . Natural Hazards, vol. 49, no. 3, 2009, pp. 437-458.
http://dx.doi.org/10.1007/s11069-008-9289-4
---------- VANCOUVER ----------
Dragani, W.C., D'Onofrio, E.E., Grismeyer, W., Fiore, M.M.E., Violante, R.A., Rovere, E.I. Vulnerability of the Atlantic Patagonian coast to tsunamis generated by submarine earthquakes located in the Scotia Arc region. Some numerical experiments. Nat. Hazards. 2009;49(3):437-458.
http://dx.doi.org/10.1007/s11069-008-9289-4