Numerical experiment and a case study of sediment transport simulation of the 2004 Indian Ocean tsunami in Lhok Nga, Banda Aceh, IndonesiaReportar como inadecuado




Numerical experiment and a case study of sediment transport simulation of the 2004 Indian Ocean tsunami in Lhok Nga, Banda Aceh, Indonesia - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Earth, Planets and Space

, 64:3

First Online: 24 October 2012Received: 31 October 2010Revised: 14 October 2011Accepted: 21 October 2011

Abstract

We use a two-dimensional tsunami sediment transport model to study the source of the 2004 earthquake. To test the model behavior, numerical experiment on sediment deposition and erosion is performed using various hypothetical parameters of tsunami wavelength, topographic slope, and sediment supply. The numerical experiment results show that erosion and deposition are strongly influenced by the tsunami wavelength and the topographic slope. The model is used to compute the spatial distribution of tsunami deposit thickness produced by the 2004 Indian Ocean over an actual elevation datasets in the coastal area of Lhok Nga, Banda Aceh, Indonesia. The model produced simulated tsunami deposits that have similar thicknesses with the measured data along a surveyed transect. Then we estimate a simple fault model for the southern portion of the 2004 earthquake using tsunami sediment transport simulations. The simulated tsunami run-up from the fault model is very close to the measured run-up. This result indicates that a source process of a large earthquake that generates a large tsunami has a potential to be estimated using sediment deposit distribution data.

Key wordsSediment transport simulation the 2004 Indian Ocean tsunami numerical experiment slip amount  Download fulltext PDF



Autor: Aditya Riadi Gusman - Yuichiro Tanioka - Tomoyuki Takahashi

Fuente: https://link.springer.com/







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