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TauP
29 Feb 2024 | Software: Download | Contributor(s): H. Philip Crotwell (primary-developer), Thomas J. Owens
The TauP Toolkit is a seismic travel time calculator. In addition to travel times, it can calculate derivative information such as ray paths through the earth, pierce and turning points. It handles many types of velocity models and can calculate times for virtually any seismic phase with a...
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Fault strength evolution during the seismic cycle: Insights from the laboratory
10 Mar 2023 | Webinars | Contributor(s): John Bedford
Geophysical evidence suggests that some faults are frictionally strong, in agreement with laboratory measurements of quasi-static frictional strength (μ ≈ 0.6-0.8) for many crustal materials; whereas others studies have found that some faults are weak when compared to laboratory friction...
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2022 Mainshock and aftershock sequence simulations in a nonplanar fault network
19 May 2022 | Webinars | Contributor(s): So Ozawa, Ryosuke Ando
Aftershocks seem to be located along the trace of the mainshock fault; however, due to the location error, we do not know their exact location relative to the mainshock fault. Here, we hypothesize that most aftershocks occur on small subsidiary faults instead of the mainshock fault, and they...
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2022 Poroelastic Implementation in PyLith: Gateway to Multiphysics
13 May 2022 | Webinars | Contributor(s): Robert L Walker
Thursday May 12, 2022 @ 2P PDT Poroelastic Implementation in PyLith: Gateway to Multiphysics Robert Walker, SUNY Buffalo PyLith, a community, open-source code (https://geodynamics.org/resources/pylith) for modeling quasi-static and dynamic crustal deformation with an emphasis on earthquake...
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2022 Energy transfer among flow and magnetic fields with different equatorial symmetry during the dipole reversal in a geodynamo simulation
17 Feb 2022 | Webinars | Contributor(s): Takumi Kera, Hiroaki Matsui, Masaki Matsushima, Yuto Katoh
The geomagnetic field has reversed its polarity, and some numerical dynamos have suggested that anti-symmetric flow with respect to the equator plays a role in reversals. Olson et al., (2004) suggested that the equatorial antisymmetric flow is temporarily strengthened, and transports a locally...
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2021 SMOREs Introduction
02 Nov 2021 | Webinars | Contributor(s): John Naliboff
2021 SMOREs ShowcaseJohn Naliboff, New Mexico Tech
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2021 Interactions between Lithospheric Instabilities and Formation of Mantle Plumes in Venus
02 Nov 2021 | Webinars | Contributor(s): Hiva Mohammadzadeh
2021 SMOREs ShowcaseHiva Mohammadzadeh, Los Angeles Pierce College
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2021 Early Earth Influence of Radiogenic Heating on Mid-Ocean Ridge Depths and Seafloor Subsidence
02 Nov 2021 | Webinars | Contributor(s): Keneni Godana
2021 SMOREs ShowcaseKeneni Godana, University of Illinois at Chicago
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2021 Bayesian Uncertainty Quantification of Subduction Zone Rheology from the Geoid
02 Nov 2021 | Webinars | Contributor(s): Elena Ehrlich
2021 SMOREs ShowcaseElena Ehrlich, North Carolina State University
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2021 As Above So Below: A Simulation of the Continental Lithosphere and LLSVPs as Thermal Insulators Using ASPECT
02 Nov 2021 | Webinars | Contributor(s): Dante Hickey
2021 SMOREs ShowcaseDante Hickey, Reed College
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SPECFEM3D Cartesian
30 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte (primary-developer), Jeroen Tromp (primary-developer), Daniel Peter (primary-developer), SPECFEM Development Team
SPECFEM3D Cartesian simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra (structured or not.) It can, for instance, model seismic waves propagating in sedimentary basins or any other regional...
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SPECFEM3D GLOBE
30 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte, Jeroen Tromp (primary-developer), Daniel Peter (primary-developer), SPECFEM Development Team
SPECFEM3D_GLOBE simulates global and regional (continental-scale) seismic wave propagation.Effects due to lateral variations in compressional-wave speed, shear-wave speed, density, a 3D crustal model, ellipticity, topography and bathymetry, the oceans, rotation, and self-gravitation are all...
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SPECFEM3D_GEOTECH
29 Oct 2021 | Software: Download | Contributor(s): Hom Nath Gharti, Dimitri Komatitsch, Leah Langer, Roland Martin, Voker Oye, Jeroen Tromp, Uno Vaaland, Zhenshen Yan
SPECFEM3D_GEOTECH is an open-source command-driven software for 3D slope stability analysis and simulation of 3D multistage excavation based on the spectral-element method.SPECFEM3D_GEOTECH is a free and open-source command-driven software for 3D slope stability analysis (for more details see...
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SPECFEM2D
29 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte (primary-developer), Daniel Peter (primary-developer), SPECFEM Software Development Team
SPECFEM2D simulates forward and adjoint seismic wave propagation in two-dimensional acoustic, (an)elastic, poroelastic or coupled acoustic-(an)elastic-poroelastic media, with Convolution PML absorbing conditions.Meshing is based for instance upon Gmsh, Cubit, GiD or a...
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SPECFEM1D
29 Oct 2021 | Software: Download | Contributor(s): SPECFEM Development Team
SPECFEM1D simulates seismic wave propagation in a one-dimensional heterogeneous medium. It is a small code that allows users to learn how a spectral-element program is written.See specfem.org.
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SW4
29 Oct 2021 | Software: Download | Contributor(s): N. Anders Petersson, Bjorn Sjögreen, Houjun Tang, Ramesh Pankajakshan
SW4 implements substantial capabilities for 3-D seismic modeling, with a free surface condition on the top boundary, absorbing super-grid conditions on the far-field boundaries, and an arbitrary number of point force and/or point moment tensor source terms. Each source time function can have one...
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AxiSEM
28 Oct 2021 | Software: Download | Contributor(s): Tarje Nissen-Meyer (primary-developer), Martin van Driel (primary-developer), Simon Stähler (primary-developer), Kasra Hosseini (primary-developer), Stefanie Hempel (primary-developer), Lion Krischer (primary-developer), Alexandre Fournier (primary-developer)
AxiSEM is a parallel spectral-element method for 3D (an-)elastic, anisotropic and acoustic wave propagation in spherical domains. It requires axisymmetric background models and runs within a 2D computational domain, thereby reaching all desired highest observable frequencies (up to 2Hz) in global...
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SEISMIC_CPML
28 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch, Roland Martin
SEISMIC_CPML is a set of eleven open-source Fortran90 programs to solve the two-dimensional or three-dimensional isotropic or anisotropic elastic, viscoelastic or poroelastic wave equation using a finite-difference method with Convolutional or Auxiliary Perfectly Matched Layer (C-PML or...
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FLEXWIN
28 Oct 2021 | Software: Download | Contributor(s): Alessia Maggi
The FLEXWIN software package automates the time-window selection problem for seismologists. It operates on pairs of observed and synthetic single component seismograms, defining windows that cover as much of a given seismogram as possible, while avoiding portions of the waveform that are...
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Mineos
28 Oct 2021 | Software: Download | Contributor(s): Guy Masters (primary-developer), John Woodhouse (primary-developer), Freeman Gilbert (primary-developer), Michael Ritzwoller (primary-developer), Misha Barmine, Sue Kientz
Mineos computes synthetic seismograms in a spherically symmetric non-rotating Earth by summing normal modes.Attenuation, gravity and transversal anisotropy effects may be optionally taken into account. The package computes mode eigenfrequencies and eigenfunctions, Green's functions and...
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2020 Numerical models of lower crustal flow explain Yellowstone's "tectonic parabola"
07 Oct 2021 | Webinars | Contributor(s): Jonathan Perry-Houts
Several hypotheses exist for the origin of the seismically active region of high topography surrounding the Yellowstone hotspot track. Among these is the idea that a dense mid-crustal sill has driven viscous lower crust away from the hotspot track, producing crustal thinning/subsidence in the...
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BurnMan
14 Sep 2021 | Software: Download | Contributor(s): Sanne Cottaar, Timo Heister, Robert Myhill, Ian Rose, Cayman Unterborn
BurnMan is an open source mineral physics toolbox written in Python to determine seismic velocities for the lower mantle. BurnMan calculates the isotropic thermoelastic moduli by solving the equations-of-state for a mixture of minerals defined by the user. The user may select from a list of...
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Fast Algorithms for Inverse Problems Governed by PDEs
12 Apr 2021 | Workshops | Contributor(s): George Biros
Fast algorithms for inverse problems governed by PDEs. September 15-17, 2008. George Biros.
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Adjoint-Fueled Advances in Error Estimation for Multiscale, Multiphysics Systems
12 Apr 2021 | Workshops | Contributor(s): Donald Estep
Adjoint-Fueled Advances in Error Estimation for Multiscale, Multiphysics Systems. September 15-17, 2008. Donald Estep.
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Non-Deterministic Approaches to Inverse Problems
12 Apr 2021 | Workshops | Contributor(s): Malcolm Sambridge, Thomas Bodin
Non-deterministic approaches to inverse problems. September 15-17, 2008. Malcolm Sambridge, Thomas Bodin.
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Multilevel Modeling: Multigrid's Lost Twin
12 Apr 2021 | Workshops | Contributor(s): David Moulton
Multilevel Modeling: Multigrid’s Lost Twin. September 15-17, 2008. David Moulton.
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Multiscale Finite Element Methods using Limited Global Information
12 Apr 2021 | Workshops | Contributor(s): Yalchin Efendiev
Multiscale finite element methods using limited global information. September 15-17, 2008. Yalchin Efendiev.
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Multiscale Finite Element Methods for Heterogeneous Porous Media
12 Apr 2021 | Workshops | Contributor(s): Todd Arbogast
Multiscale Finite Element Methods for Heterogeneous Porous Media. September 15-17, 2008. Todd Arbogast.
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Problems in Solid Earth Deformation: Crust and Upper Mantle
12 Apr 2021 | Workshops | Contributor(s): Yuri Fialko
Problems in Solid Earth Deformation: Crust and Upper Mantle. September 15-17, 2008. Yuri Fialko.
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Constraining the Physics Governing Collective Behavior of Earthquakes and Faults through Numerical Modeling and Observations
12 Apr 2021 | Workshops | Contributor(s): Yehuda Ben-Zion
Constraining the physics governing collective behavior of earthquakes and faults through numerical modeling and observations. September 15-17, 2008. Yehuda Ben-Zion.
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Current challenges in computational earthquake dynamics
12 Apr 2021 | Workshops | Contributor(s): Jean-Paul Ampuero
Current challenges in computational earthquake dynamics. September 15-17, 2008. Jean-Paul Ampuero.
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Robust and Flexible Newton-Krylov based Solution Methods for Nonlinear Coupled Multiphysics Systems
12 Apr 2021 | Workshops | Contributor(s): John Shadid
Robust and Flexible Newton-Krylov based Solution Methods for Nonlinear Coupled Multiphysics Systems. September 15-17, 2008. John Shadid.
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Multi-physics/Multi-Scale Methods I: Methods for Multi-physics Coupled Solvers
12 Apr 2021 | Workshops | Contributor(s): Daniel Reynolds
Multi-physics/Multi-Scale Methods I: Methods for Multi-physics Coupled Solvers. September 15-17, 2008. Daniel Reynolds.
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Thermodynamics of Mantle Systems
12 Apr 2021 | Workshops | Contributor(s): Paula Smith, Laura Baker Hebert, Paul Asimow, Mike Gurnis
Thermodynamics of mantle systems. September 15-17, 2008. Paula Smith, Laura Baker Hebert, Paul Asimow, Mike Gurnis.
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Reservoir Simulation Magma Dynamics
12 Apr 2021 | Workshops | Contributor(s): Marc Hesse
Reservoir Simulation Magma Dynamics. September 15-17, 2008. Marc Hesse.
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Limits to Nonlinear Inversion
02 Apr 2021 | Workshops | Contributor(s): Klaus Mosegaard
Limits to Nonlinear Inversion. September 15-17, 2008. Klaus Mosegaard.
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Robust and Flexible Newton-Krylov based Solution Methods for Nonlinear Coupled Multiphysics Systems
02 Apr 2021 | Workshops | Contributor(s): John Shadid, Paul T. Lin, Roger P. Pawlowski, Ray S. Tumninaro, Luis Chacon
Robust and Flexible Newton-Krylov based Solution Methods for Nonlinear Coupled Multiphysics Systems. September 15-17, 2008. John N. Shadid.
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Ubiquitous Interactive Visualization of 3D Mantle Convection
31 Mar 2021 | Workshops | Contributor(s): David Yuen
Ubiquitous Interactive Visualization of 3D Mantle Convection. September 15-17, 2008. David Yuen.
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PyLith 1.3: A Finite-Element Code for Modeling Quasi-Static and Dynamic Crustal Deformation
31 Mar 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley, Leif Strand, Sue Kientz
PyLith 1.3: A Finite-Element Code for Modeling Quasi-Static and Dynamic Crustal Deformation. September 15-17, 2008. Brad Aagaard.
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Parallel Adaptive Mantle Convection Simulation
31 Mar 2021 | Workshops | Contributor(s): Carsten Burstedde, Omar Ghattas, Mike Gurnis, Georg Stadler, Eh Tan, Tiankai Tu, Lucas C. Wilcox, Shijie Zhong
Parallel Adaptive Mantle Convection Simulation. September 15-17, 2008. Carsten Burstedde.
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New Computational Approach to Nonplanar Elastodynamic Ruptures
31 Mar 2021 | Workshops | Contributor(s): Ethan T. Coon, Bruce E. Shaw, Marc Spiegelman
New Computational Approach to Nonplanar Elastodynamic Ruptures. September 15-17, 2008. Ethan T. Coon.
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Multilevel Approach for signal restoration problems with Toeplitz matrices
31 Mar 2021 | Workshops | Contributor(s): Malena I. Español, Misha E. Kilmer
Multilevel Approach for signal restoration problems with Toeplitz matrices. September 17-18, 2008. Malena I. Español.
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Lithospheric Modelling: Research Directions at Simula
31 Mar 2021 | Workshops | Contributor(s): Stuart R. Clark, Are Magnus Bruaset
Lithospheric Modelling: Research Directions at Simula. September 15-17, 2008. Stuart R. Clark.
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Gale: Large Scale Tectonics Modeling With Free Software
31 Mar 2021 | Workshops | Contributor(s): Walter Landry, L. Hodkinson, S. Kientz
Gale: Large Scale Tectonics Modeling With Free Software. September 15-17, 2008. Walter Landry.
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Flexible Multi-Physics Solvers for Magma Dynamics
31 Mar 2021 | Workshops | Contributor(s): Marc Spiegelman, Gideon Simpson, Michael Weinstein
Flexible Multi-Physics Solvers for Magma Dynamics. September 15-17, 2008. Marc Spiegelman.
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Finite Element Meshing of the SCEC
31 Mar 2021 | Workshops | Contributor(s): Carl W. Gable, Brad H. Hager, Jingning Lu, Charles A. Williams
Finite Element Meshing of the SCEC. September 15-17, 2008. Carl W. Gable.
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CitcomS: Compressible Mantle Convection
31 Mar 2021 | Workshops | Contributor(s): Eh Tan, M. Gurnis, S. Kientz
CitcomS: Compressible Mantle Convection. September 15-17, 2008. Eh Tan.
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CIG Software for the Geophysics Community
31 Mar 2021 | Workshops | Contributor(s): Walter Landry, Eh Tan, Leif Strand, Luis Armendariz, Michael Gurnis, Wei Mi, Michael Aivazis, Brad Aagaard, Matthew Knepley, Marc Spiegelman, Charles Williams, Luke Hodkinson
CIG Software for the Geophysics Community. September 15-17, 2008. Walter Landry.
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2007 CIG/SPICE/IRIS Workshop Program and Abstracts
30 Mar 2021 | Workshops | Contributor(s): Organizing Committee
2007 CIG/SPICE/IRIS Workshop Program and Abstracts. October 9-11, 2007.
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Problems in magma dynamics (and a few solutions)
30 Mar 2021 | Workshops | Contributor(s): Richard Katz
Problems in magma dynamics (and a few solutions) Sept 15-17, 2008. Richard Katz.