Relevant contents of seismic refraction forward and inversion

Potential Fields
1

Hello, I’m a university student majoring in geophysics. I want to ask you a question: Is there any code related to seismic refraction forward and inversion in simpeg? I would be very happy if you could spare me precious time to answer me.

2

Hi Hui,
I think that pyGIMLi (https://www.pygimli.org/) might be better suited for seismic refraction than SimPEG. Recent development in SimPEG focused on non-seismic methods.

4

Thank you very much. Can I use the PGI in Simpeg to perform the joint inversion of seismic refraction method and resistivity method in Pygimli?

5

I don’t think that is easily possible, but I am not completely sure. Others might know better.

6

Thank you very much for your reply. I have one last question: there are 2D seismic reflection forward and inversion in SimPEG. What do I need to change if I want to write 3D reflection forward and inversion based on these codes? What does the variable “vec” in tomo.simulation mean?

7

I do not know, sorry. I have never used the seismic modules in SimPEG. Hopefully other devs will chime in. However, as far as I can see I do not think that the seismic parts of SimPEG have been used or updated in recent years.

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8

Hi,
I am not aware anyone attempted to use any simpeg regularizations with pygimli; so I would say that PGI + pygimli likely won’t work out of the box. You would need to make a simulation wrapper around the pygimli forward problem and its gradients.

9

Thank you very much for your assistance.Can “stratight_ray_tomagraphy. simulation” be applied to 3D? In SimPEG, there are only 2D examples. I tried to modify “survey” to apply it to 3D, but this seems to be impossible.If it can be implemented, how can I modify it? I want to try again.

10

Hello, I am also a University student and I am currently working on structural joint inversion (ERT and SRT).I wanted to ask whether you were able to make progress on this topic:

Did you use srt.simulation in SimPEG, or did you find a workaround to compensate for the limitations in the current SRT implementation?

or did you successfully wrap pyGIMLi forward models so they can be used within SimPEG’s regularization or joint inversion framework ?

I have tried contacting some authors and developers who have worked on this topic, but I haven’t been able to get a response. I would realy appreciate your experience on this topic. Thank You.