Best software for seismic refraction tomography

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resour
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Re: Best software for seismic refraction tomography

Post by resour »

For multiscale tomography using Steepest Descent method for SAGEEP11 blind refraction data see

http://rayfract.com/tutorials/sageep11_smooth50.pdf

For multiscale tomography using Conjuate Gradient method for SAGEEP11 data see

http://rayfract.com/tutorials/sageep11_16.pdf

and final tomogram after 8 WET runs shown below :
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CGWETRun8It61.png

GeoALG
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Re: Best software for seismic refraction tomography

Post by GeoALG »

ZondST2D is a very nice software for seismic refraction. I have used some old data with 7 shots. It gives excellent results. He Alex can you give me a temporary license to test it in full version?

pitta
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Re: Best software for seismic refraction tomography

Post by pitta »

I would like to point out a new software for seismic refraction tomography called SmartTomo. SmartTomo exploits an optimized implementation of the Moser method, ( “Shortest path calculation of seismic rays.” Geophysics 56.1 (1991): 59-67), and optimizes the results through the Simultaneous Iterative Reconstruction Technique.
More info can be found at the project homepage https://www.smarttomo.com
I tested the software with the "3layers.txt" dataset and with 20 iteration I got the following result:
Figure_profile_rays.png
The software was also tested using the SAGEEP11 dataset. The following image show the resulting tomographic profile.
Figure_Palette_profile_isolines.png
It takes about 400 seconds to process the 101 sources recorded using 100 receivers of this dataset.

resour
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Re: Best software for seismic refraction tomography

Post by resour »

Here our updated SAGEEP11 interpretation now with our new WDVS Wavelength-Dependent Velocity Smoothing :
WDVS_60Hz_Dec27_2020.png
Multiscale WET inversion with 1D-gradient starting model and WDVS at 60Hz took 22 minutes on Apple 2020 macMini.

For theory on WDVS see (Zelt and Chen 2016) at

https://www.researchgate.net/publicatio ... ction_data

We show more processing details and alternative interpretations in

https://rayfract.com/tutorials/sageep11_16.pdf

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