Geodynamics - Resources: All

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...

2023 PyLith Hackathon

02 Aug 2023 | Workshops | Contributor(s): Brad Aagaard

Workshop report

2020 Crustal Deformation Modeling Workshop Report

27 Jul 2022 | Workshops | Contributor(s): Brad Aagaard, Sylvain Barbot, Brittany Erickson, Matthew Knepley, Mark Simons, Charles Williams

Workshop report

2021 CIG

18 Nov 2021 | Documents | Contributor(s): CIG Staff

Presentation and recording of the 2021 CIG Annual Business Meeting November 18, 2021 ~@1-2:30P PT.

2021 CIG Annual Business Meeting

18 Nov 2021 | Documents | Contributor(s): CIG Staff

Presentation from the 2021 CIG Annual Business Meeting, November 18 @1-2:30P PT.

2021 SMOREs Introduction

02 Nov 2021 | Webinars | Contributor(s): John Naliboff

2021 SMOREs ShowcaseJohn Naliboff, New Mexico Tech

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

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

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

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

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...

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...

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...

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...

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.

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...

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...

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...

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...

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...

PyLith

27 Oct 2021 | Software: Download | Contributor(s): Brad Aagaard (primary-developer), Charles A. Williams (primary-developer), Matthew Knepley (primary-developer)

PyLith is a finite-element code for dynamic and quasistatic simulations of crustal deformation, primarily earthquakes and volcanoes. Binary packages are available for macOS and Linux. Detailed installation instructions for the binary packages are in the PyLith manual.

Relax

26 Oct 2021 | Software: Download | Contributor(s): Sylvain Barbot (primary-developer)

Relax implements a semi-analytic Fourier-domain solver and equivalent body forces to compute quasi-static relaxation of stress perturbation.It is not an acronym, it's a motto!The open-source program Relax evaluates the displacement and stress in a half space with gravity due to...

Virtual Quake

26 Oct 2021 | Software: Download | Contributor(s): John M. Wilson, Kasey W. Schultz, Eric M. Heiein, Michael K. Sacks, John B. Rundle

Virtual Quake (formerly Virtual California) is a boundary element code that performs simulations of fault systems based on stress interactions between fault elements to understand long term statistical behavior.

SELEN

25 Oct 2021 | Software: Download | Contributor(s): Giorgio Spada (primary-developer), Daniele Melini (primary-developer)

SELEN: a program for solving the "Sea Level Equation.The open source program SELEN solves numerically the so-called "Sea Level Equation" (SLE) for a spherical, layered, non-rotating Earth with Maxwell viscoelastic rheology. The SLE is an integral equation that was introduced in...

LithoMop

22 Oct 2021 | Software: Download | Contributor(s): Charles A. Williams (primary-developer)

LithoMop is a finite element code for the solution of the visco-elastic/plastic deformation that was designed for lithospheric modeling problems.A newer version of LithoMop, called PyLith, has been released by CIG.

Responsibilities of Working Groups

12 Oct 2021 | Documents | Contributor(s): Executive Committee, Science Steering Committee

Roles and responsibilities of Working Groups.Approved 24 August 2021.

Responsibilities of the SSC

12 Oct 2021 | Documents | Contributor(s): Executive Committee, Science Steering Commitee

Roles and responsibilities of the Science Steering Committee.Approved 24 August 2021.

Responsibilities of the EC

12 Oct 2021 | Documents | Contributor(s): Executive Committee, Science Steering Committee

Describes the roles and responsibilities of the Executive Committee.Approved 24 August 2021

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...

2021 CIG Community Research Highlights

02 Aug 2021 | Documents | Contributor(s): Lorraine Hwang

Research highlights solicited from the community for CIG IV,

CIG Bylaws 2018

30 Mar 2021 | Documents | Contributor(s): Staff

Bylaws of Computational Infrastructure for Geodynamics (CIG). As amended by the Electorate, June 30, 2018.

CIG Business Meeting 2007 Presentations