# The Spectral-Element Method, Beowulf Computing, and Global Seismology

@article{Komatitsch2002TheSM, title={The Spectral-Element Method, Beowulf Computing, and Global Seismology}, author={Dimitri Komatitsch and Jeroen Ritsema and Jeroen Tromp}, journal={Science}, year={2002}, volume={298}, pages={1737 - 1742} }

The propagation of seismic waves through Earth can now be modeled accurately with the recently developed spectral-element method. This method takes into account heterogeneity in Earth models, such as three-dimensional variations of seismic wave velocity, density, and crustal thickness. The method is implemented on relatively inexpensive clusters of personal computers, so-called Beowulf machines. This combination of hardware and software enables us to simulate broadband seismograms without…

## 208 Citations

Spectral-element and adjoint methods in seismology

- Geology
- 2008

We provide an introduction to the use of the spectral-element method (SEM) in seismology. Following a brief review of the basic equations that govern seismic wave propagation, we discuss in some…

Computations of Global Seismic Wave Propagation in Three Dimensional Earth Model

- GeologyISHPC
- 2005

A Spectral-Element Method implemented on the Earth Simulator in Japan is used to simulate broadband seismic waves generated by various earthquakes, which incorporates 3D variations in compressional wave velocity, shear-wave velocity and density, attenuation, anisotropy, ellipticity, topography and bathymetry, and crustal thickness.

The spectral-element method in seismology

- Geology
- 2013

The spectral-element method, which is well suited for numerical calculations of synthetic seismograms for three-dimensional Earth models, is presented, which uses a fluid-solid coupling formulation that does not require iterations at the core-mantle or inner-core boundaries.

Modeling of global seismic wave propagation on the Earth Simulator

- Geology
- 2004

We use the Earth Simulator to model seismic wave propagation resulting from large earthquakes on a global scale. Simulations are conducted based upon the spectral-element method, a high-degree…

Simulations of global seismic wave propagation for 3-D Earth model

- GeologyProceedings. Seventh International Conference on High Performance Computing and Grid in Asia Pacific Region, 2004.
- 2004

A spectral-element method implemented on the Earth Simulator in Japan is used to simulate broadband seismic waves generated by various earthquakes, which incorporates 3D variations in compressional wave velocity, shear-wave velocity and density, attenuation, anisotropy, ellipticity, topography and bathymetry, and crystal thickness.

Theory and Obeservations - Forward Modeling and Synthetic Seismograms, 3D Numerical Methods

- Geology
- 2007

Investigating Fine Structures of the Earth’s Interior Based on Spectral-element Seismic-wave Simulations

- Geology
- 2019

Investigating Fine Structures of the Earth’s Interior Based on Spectral-Element Seismic-Wave Simulations Chuangxin Lin Doctor of Philosophy Graduate Department of Physics University of Toronto 2019…

High-frequency seismic wave modelling of the deep Earth based on hybrid methods and spectral-element simulations: a conceptual study

- GeologyGeophysical Journal International
- 2019

Over the past few decades, seismic studies have revealed complex structural anomalies in the Earth’s deep interior at various scales, such as large low-shear-velocity provinces (LLSVPs) and ultra-low…

Seismic Tomography of Southern California Using Adjoint Methods

- Geology
- 2009

A fundamental objective of seismology is to produce detailed tomographic images of Earth's interior by fitting simulated seismograms to recorded seismograms. The quality of the image depends on the…

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