The Computational Infrastructure for Geodynamics (CIG) is a community-driven organization that advances Earth science by developing and disseminating software for geophysics and related fields.

CIG is located at the University of California, Davis, and is a member-governed consortium with 62 US institutional members and 15 international affiliates.

CIG was established in 2005 in response to the need for coordinated development and dissemination of software for geodynamics applications.

CIG hosts open source software in a wide range of disciplines and topic areas, such as geodynamics, computational science, seismology, mantle convection, long-term tectonics, and short-term crustal dynamics.

[1] CIG started the SAGA project with an NSF EAGER award from the SBE Office of Multidisciplinary Activities for "Development of Software Citation Methodology for Open Source Computational Science".