Advances in Modelling and Inversion of Seismic Wave Propagation

V. Hermann, N. D. Pham, A. Fichtner, S. Kremers, Lianjie Huang, Paul Johnson, Carène Larmat, H.-P. Bunge and H. Igel ()
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V. Hermann: Ludwig-Maximilians-University of Munich, Department of Earth and Environmental Sciences
N. D. Pham: Ludwig-Maximilians-University of Munich, Department of Earth and Environmental Sciences
A. Fichtner: Ludwig-Maximilians-University of Munich, Department of Earth and Environmental Sciences
S. Kremers: Ludwig-Maximilians-University of Munich, Department of Earth and Environmental Sciences
Lianjie Huang: Los Alamos National Laboratory of the University of California, Geophysics Group, Earth and Environmental Sciences Division
Paul Johnson: Los Alamos National Laboratory of the University of California, Geophysics Group, Earth and Environmental Sciences Division
Carène Larmat: Los Alamos National Laboratory of the University of California, Geophysics Group, Earth and Environmental Sciences Division
H.-P. Bunge: Ludwig-Maximilians-University of Munich, Department of Earth and Environmental Sciences
H. Igel: Ludwig-Maximilians-University of Munich, Department of Earth and Environmental Sciences

A chapter in High Performance Computing in Science and Engineering, Garching/Munich 2009, 2010, pp 293-306 from Springer

Abstract: Abstract We report on progress in modelling and inversion of seismic waveforms. This involves in particular the simulation of wave propagation through Earth models with complex geometries (i.e., internal interfaces or topography) using numerical solutions based on tetrahedral meshes. In addition, efficient solvers in 3-D based on a regular-grid spectral element method allow for the simulation of many Earth models and for the inversion (i.e., for the fit) of observed seismograms using adjoint techniques. We present an application of this approach to the Australian continent. Furthermore results are presented on exploiting ideas from reverse acoustics to estimate finite source properties of large earthquakes and to constrain crustal scattering through modeling joint observations of rotational and translational ground motions.

Keywords: Ground Motion; Correlation Length; Time Reversal; Discontinuous Galerkin; Discontinuous Galerkin Method (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1007/978-3-642-13872-0_25

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