Gassmann substitution seems broken

[whamlyn]

In reviewing a Gassmann substitution workflow (using rp.sat2dry() and rp.drytosat()), the results did not appear to make sense (increasing gas saturation increased P-wave velocity). A quick review of the functions did not turn up any obvious errors in the equations, this requires further investigation.

[refaelnaibaho]

Hi there. My question is not related to this topic, but how can I install/get the auralib module, please? Seems that I cannot find it in PyCharm or run it in Jupyter notebook. Thank you.

[whamlyn]

Hi Refael,

I've not set this up to be an installed package via pip or conda (something I've meant to look into for a while now). You will need the directory containing the auralib package to be added to the PYTHONPATH variable. There are different ways to do this depending on if running on MacOS/Windows/Linux.

Generally what I do is:

• Create a directory to contain all of my custom libraries (e.g. C:\users\whamlyn\libs)
• I will store all of my auralib modules in a directory named auralib in the path above (e.g. C:\users\whamlyn\libs\auralib)
• I add the library directory to my PYTHONPATH environment variable (e.g. add "C:\users\whamlyn\libs to PYTHONPATH

Once you have that done correctly you should be able do a normal import and can then access any of the individual packages via code like:

import auralib as aura Kdry = aura.rp.gassmann_sat2dry(Ksat, Kmin, Kfl, phi)

I hope this helps...

Best regards, Wes

On Tue, Oct 27, 2020 at 9:43 AM Refael Naibaho notifications@github.com wrote:

Hi there. My question is not related to this topic, but how can I install/get the auralib module, please? Seems that I cannot find it in PyCharm or run it in Jupyter notebook. Thank you.

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