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Bachelor thesis . 2015
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Modelado Numérico del Maremoto de Pisco 2007.

Authors: Moggiano Aburto, Nabilt Jill;

Modelado Numérico del Maremoto de Pisco 2007.

Abstract

Se realizó el estudio de la dinámica del maremoto de Pisco (costa central del Perú) ocurrido el 15 de agosto del 2007 en sus 3 fases: generación, propagación e inundación, haciendo uso del modelado numérico. Para la generación, se usó un modelo de fuente sísmica heterogéneo propuesto por Jiménez et al., (2012) que fue validado en esta investigación con el registro de la Boya DART N° 32401, obteniendo un coeficiente de correlación de 0,83 en la ventana de tiempo comprendida entre los 40 min hasta los 80 min, luego de ocurrido el sismo. Para la propagación e inundación, se utilizó como herramienta computacional el modelo numérico TUNAMI-N2 en su forma lineal y no lineal, donde se resuelven las ecuaciones de continuidad y movimiento en forma discretizada. La fase de inundación presentó un carácter no-lineal caracterizado por la máxima altura de inundación del maremoto en costa. Los resultados de la simulación se validaron con las observaciones y mediciones de campo de la DHN (2007) y Fritz et al., (2008), obteniendo un coeficiente de correlación de 0,9. La máxima distancia de inundación obtenida por simulación fue de 1 963 m en Caleta Lagunillas (sur de la Península de Paracas), muy próximo al valor registrado en campo de 2 000 m. Además, se obtuvieron mareogramas sintéticos y tiempos de arribo de olas para los principales lugares afectados por el maremoto. Finalmente, se concluyó que la simulación numérica para el maremoto de Pisco 2007 fue satisfactoria, del cual se obtuvo un alto nivel de correlación entre los resultados de la simulación y la información obtenida en campo.

This work evaluates the dynamics of the Pisco (Central Peru) tsunami, which took place on August 15th, 2007 in three phases: generation, propagation and inundation based on numerical modeling. The generation phase was studied using a heterogeneous seismic source model proposed by Jiménez et al., (2012) that has been validated in this thesis using the mareogram recorded by DART buoy No 32401. The correlation coefficient between theoretical and observed mareograms was 0.83 within the time window 40-80 minutes after the earthquake. Propagation and inundation phases have linear and nonlinear character respectively and are studied using the TUNAMI-N2 numerical model as a computational tool. The continuity and momentum equations are solved in discretized form. The results obtained have been validated with the DHN (2007) and Fritz et al., (2008) field survey with 0.9 correlation coefficient. The maximum inundation was 1 963 m obtained by the simulation for Caleta Lagunillas (south of the Paracas Peninsula). This result is very close to the finding of the field survey (2000 m). Synthetic tide gauge mareogram and arrival times were also obtained by the numerical model in regions where major cities were affected by the tsunami. The numerical simulation of the 2007 Pisco tsunami was successful, with a high correlation between numerical results and field survey information.

Dirección de Hidorgrafía y Navegacion

Unpublished

Country
Peru
Related Organizations
Keywords

https://purl.org/pe-repo/ocde/ford#1.03.00, Pisco (Perú : Provincia), Atmosphere-ocean system, Desastres naturales - Modelos matemáticos, Administración de emergencias - Modelos matemáticos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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