Computational Infrastructure
for Geodynamics (CIG)

Community-driven organization advancing Earth science by providing the infrastructure for the development and dissemination of software for geophysics and related fields.

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Newsletter

November 2024

Research Highlight

Model setup in ASPECT. The narrow red zones at the surface represent the imposed weak plate boundaries where viscosities are several orders of magnitude lower than in the surrounding lithosphere. PA: Pacific plate, NA: North American plate.

Examining plate-mantle coupling using global mantle flow models in ASPECT

Contributed by Arushi Saxean,  University of California Davis

Plate tectonics is a phenomenon unique to our planet, and complex life would not exist without it. Significant scientific efforts have been made over the past two decades to better understand this phenomenon to give us a first-order understanding of the plates' different driving and resisting forces. Since then, advancements in numerical techniques and the availability of extensive observational data have enabled the development of more sophisticated models, providing deeper insights into plate tectonics and the associated surface expressions. Some key questions include: what is the impact of plate boundary geometry on surface deformation? How do differing slab structures govern plate motions? What are the relative effects of surface topography, upper-mantle structure, and lower-mantle structure on stresses along plate boundaries?

To address these questions ... [full article]

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What Is happening?

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Get the Tools

Calypso

v1.2.0
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

Rayleigh

v1.1.0
A 3-D convection code designed for the study of dynamo behavior in spherical shell geometry. 
 
Current release: 2022-05-05
GNU GPL v3 or newer license

SW4

v3.0
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: 2023-08-30
GNU GPL v2 or newer license

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