Articles | Volume 9, issue 5
https://doi.org/10.5194/se-9-1169-2018
https://doi.org/10.5194/se-9-1169-2018
Method article
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10 Oct 2018
Method article | Highlight paper |  | 10 Oct 2018

GHOST: Geoscientific Hollow Sphere Tessellation

Cedric Thieulot

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Cited articles

Alisic, L., Gurnis, M., Stadler, G., Burstedde, C., and Ghattas, O.: Multi-scale dynamics and rheology of mantle flow with plates, J. Geophys. Res., 117, B10402, https://doi.org/10.1029/2012JB009234, 2012.
Arrial, P.-A., Flyer, N., Wright, G. B., and Kellogg, L. H.: On the sensitivity of 3-D thermal convection codes to numerical discretization: a model intercomparison, Geosci. Model Dev., 7, 2065–2076, https://doi.org/10.5194/gmd-7-2065-2014, 2014.
Baumgardner, J.: Three-Dimensional treatment of convective flow in the Earth's mantle, J. Stat. Phys., 39, 501–511, 1985.
Baumgardner, J. and Frederickson, P.: Isocahedral discretisation of the two-sphere, SIAM J. Numer. Anal., 22, 1107–1115, 1985.
Becker, T.: On the effect of temperature and strain-rate dependent viscosity on global mantle flow, net rotation, and plate-driving forces, Geophy. J. Int., 167, 943–957, 2006.
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Short summary
I present the GHOST (Geoscientific Hollow Sphere Tessellation) software which allows for the fast generation of computational meshes in hollow sphere geometries counting up to a hundred million cells. Each mesh is composed of concentric spherical shells made of quadrilaterals or triangles. I focus here on three commonly used meshes used in the geodynamics/geophysics community and further benchmark the gravity and gravitational potential procedures in the simple case of a constant density.