[CIG-SEISMO] external model file question

[Michael Gineste]

Hi all,

I think I found out how it is supposed to be handled, by reading the
Specfem3D manual. Sorry about the spam.

Best,
Michael Gineste


On 2017-07-25 21:11, Michael Gineste wrote:
> Hi Specfem group,
>
> I have a question regarding the external model file input, dependent on
> the parameter MODEL. I can not find much on this in the documentation so
> what I understand is from the source code...
>
> I need to supply the external model through a external file, so using a
> subroutine is not an option, ruling out parameter option 'external'. For
> the remaining options, it seems to me that that only option 'default'
> and 'tomo' allows you supply a model not to know the mesh partition in
> advance. Is this correctly understood?
>
> The 'default' option, which I have used so far, maps a model
> specification to an entire element, whereas I wish to pass a model at
> finer resolution, and with 'tomo' it gets interpolated onto the GLL
> points. Which is fine, but I wonder how one is supposed to handle the
> PML elements with this model format.
>
> Must values given at (x,z) points within the PML elements be ensured
> constant and equal to (x,z)-points just adjacent to the PML elements, in
> the same manner as when one uses the combination nbmodels,
> materials_file and absorbing_cpml_file? Or is it handled within the code?
>
> Thank you for your help.
>
> Best regards,
> Michael Gineste
>
>
>