[aspect-devel] Plate motion reconstrucion - Layered rheology

[Glerum, A.C. (Anne)]

Hi Eleonora,

GPlates files can be used as boundary conditions in ASPECT, see for example Heister et al. 2017 GJI.

There is a section in the manual that describes how to create the GPlates velocity files:
Section 5.3.4 Using reconstructed surface velocities by GPlates

 What I did recently to create a file for present day velocities was:

  1.  (1)  Load the Reconstruction Tree

  2.  (2)  Load the Dynamic Polygons

  3.  (3)  Generate a grid for the velocity output with Features → Generate Velocity Domain Points

  4.  (4)  This will show velocity vectors for the grid points. Export through Reconstruction → Export

I hope that gets you started,
Anne



On 26 Oct 2017, at 08:20, Maxwell Rudolph <maxrudolph at ucdavis.edu<mailto:maxrudolph at ucdavis.edu>> wrote:

Eleonora,
There is a 'depth dependent' material model that allows you to prescribe a depth-dependent viscosity prefactor to any of the other material models.

Max

On Wed, Oct 25, 2017 at 6:41 AM, Eleonora Ficini <eleonora.ficini at uniroma1.it<mailto:eleonora.ficini at uniroma1.it>> wrote:
Hello everyone,
I am a PhD student, I recently started to use ASPECT and I have two different questions:

1) I would like to know if someone tried to include plate motion reconstruction (from GPlates) into ASPECT. If yes, what kind of files does ASPECT need? It seems that the manual doesn't mention the correct way to built the velocity/time file.

2) In a global spherical model, how is the layered rheological structure (especially regarding a 100 km thick lithosphere)?

Thank you in advance for your time and attention.

All the best,
Eleonora


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