Computational Infrastructure
for Geodynamics (CIG)

Community-driven organization advancing Earth science by developing and disseminating software for geophysics and related fields.

What's New

We are very excited to share our new website and rebranding. The website unifies our content and gives the community additional capabilities in a modern interface. Don't forget to sign up for our forum to learn about new features as we roll them out.

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A set of codes for MHD dynamo simulation in a rotating spherical shell using spherical harmonics expansion methods.
Current release: 2017-07-17
GNU GPL v2 or newer license


Finite-element code for dynamic and quasistatic simulations of crustal deformation, primarily earthquakes. and volcanoes
Current release: 2020-06-30
MIT license


A 3-D convection code designed for the study of dynamo behavior in spherical shell geometry. 
Current release: 2021-11-12
GNU GPL v3 or newer license


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. 
Current release: 2017-11-20
GNU GPL v2 or newer license

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What Is happening?


2021 CIG Annual Business Meeting

Our annual business meeting will be held virtually this year on Thursday November 18 @ 1:00 - 2:30P PDT.

Register in advance for this meeting [register]. 

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2021 AGU Week

December 13–17, 2021

AGU Full Scientific Program
CIG Community Abstracts

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Raj Moulik, Princeton University

January 13, 2021


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ASPECT User Meeting

January 19-20, 2021


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Takumi Kera, Tohoku University

February 10, 2021


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2021 CIG Annual Report


CIG's 2020-2021 Annual Report is now available. The report reviews CIG's accomplishments and activities of the past year.

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Research Highlight

A snapshot of an evolving asymmetric rift model at 12 Myr. The FastScape surface is colored by topography, and additionally shows the drainage area (blue to white) and erosion rate (white to black). The FastScape surface topography is averaged along the Y-direction and sent back to ASPECT at each timestep. [cont]

ASPECT: surface processes and basin formation through a two-way coupling with FastScape

Contributed by Derek Neubarth, Anne GlerumSascha Brune, Thilo Wrona, Jean Braun, and Xiaoping Yuan
GFZ Potsdam

The FastScape-ASPECT coupling is a two-way coupling that allows the landscape evolution model FastScape to deform the surface of ASPECT. Geodynamic models commonly simulate surface motions by using either a free surface or a sticky air layer. Either method can produce unrealistic highs or lows in the topography because they do not account for erosional and depositional processes that redistribute surface material through time. This redistribution not only helps obtain realistic topographies, but the change in surface loading can have widespread effects on model evolution, such as .... [cont]

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