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[FEA] Use vfsa with a two interface model as input #6

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Dirack opened this issue Feb 29, 2020 · 0 comments · Fixed by #7 or #12
Closed

[FEA] Use vfsa with a two interface model as input #6

Dirack opened this issue Feb 29, 2020 · 0 comments · Fixed by #7 or #12
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enhancement New feature or request
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Dirack commented Feb 29, 2020

🎉 Feature request

Is your feature request related to a problem? Please describe.

Use the vfsa programs to get the CRS parameters (RN, RNIP and BETA) in a two interface model with constant velocity layers for both reflector surfaces.

Describe the solution you'd like

Modeling should use a finite difference algorithm in order to build the seismic data cube. After that, repeat the same process in the usage example twice, one for each reflector. Do the same as in the usage example, show the CRS surfaces and error.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

@Dirack Dirack added the enhancement New feature or request label Feb 29, 2020
@Dirack Dirack self-assigned this Feb 29, 2020
Dirack added a commit that referenced this issue Mar 21, 2020
Allow to keep more usage examples of vfsa package
Dirack added a commit that referenced this issue Mar 21, 2020
This experiment will depend on pandas and numpy python libraries to
interpolate the points in the interface.
Dirack added a commit that referenced this issue Mar 21, 2020
The interpolate.py program generate a layers.asc file in the madagascar
ascii format. This file will be read for sfdd to be converted in .rsf
format
Dirack added a commit that referenced this issue Mar 21, 2020
This SConstruct uses interpolate.py, numpy and pandas libraries to
interpolate a set of points describing the interfaces, generate the
model and do finite diferences modeling to obtain the shot gathers
@Dirack Dirack added this to the vfsa1.1 milestone Mar 27, 2020
Dirack added a commit that referenced this issue Mar 27, 2020
Use kirchoff newton modeling using ray tracing with the SConstruct
available in the Madagascar website.

This method is easier than Finite Diferences and can improve computational
number of tests and save time
Dirack added a commit that referenced this issue Mar 27, 2020
The Finite Diferences modeling and the interpolation it needs in this
SConstruct will spend to much time and computational resources. So it
is better use ray tracing with sfunif2.
Dirack added a commit that referenced this issue Mar 31, 2020
Dirack added a commit that referenced this issue Mar 31, 2020
Get CRS parameters and CRS approximated surface for a multi layer model
using VFSA. Use central CMP m0=3Km, near surface velocity v0=1.5 and
a list of t0's, one for each reflector.
@Dirack Dirack mentioned this issue Mar 31, 2020
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@Dirack Dirack linked a pull request Mar 31, 2020 that will close this issue
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Dirack added a commit that referenced this issue Apr 9, 2020
Plot how semblance between non hyperbolic CRS approximation surface
and data changes with t0 time with a fixed m0=3km given.
Dirack added a commit that referenced this issue Apr 9, 2020
Generate and plot parameters graphs and overlay it with CMP gather 3km
in order to show how the parameters changes with t0 choice
@Dirack Dirack mentioned this issue Apr 10, 2020
4 tasks
@Dirack Dirack linked a pull request Apr 10, 2020 that will close this issue
4 tasks
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