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SPECFEM / specfem2d

SPECFEM2D simulates forward and adjoint seismic wave propagation in two-dimensional acoustic, (an)elastic, poroelastic or coupled acoustic-(an)elastic-poroelastic media, with Convolution PML absorbing conditions.
https://specfem.org
GNU General Public License v3.0
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Results from Gaussian, its first and second (Ricker) derivatives are same #1238

Closed samyog111 closed 2 months ago

samyog111 commented 2 months ago

Description

I am currently working on a 1D two-layered seismic model using SPECfem2D. I have confirmed that all parameters are correctly set in my model. However, my results do not match with the expected outcomes from FLAC analyses. It seems the issue arises from the source not being evenly applied across all points beneath the 1D model in SPECfem. I attempted to address this by applying the Ricker wavelet throughout the lower surface in the model, setting the initial field option to true, but this approach has not been successful (as it is applying the source wavelet in the top surface of the model). Could you please advise on the correct method to uniformly apply the source wavelet below the model?

Affected SPECFEM2D version

specfem2D 2021

Your software and hardware environment

frisco.chpc.utah.edu

Reproduction steps

1. Go to '...'
2. Change settings '....'
3. Use data files '....'
4. See error

Screenshots

![DESCRIPTION](LINK.png)

Logs

No response

OS

No response

danielpeter commented 2 months ago

could explain a bit more what you mean by:

".. source not being evenly applied across all points beneath the 1D model in SPECfem. .."

and add your Par_file setup and the generated console output (or output files) for reproducing this example?