I am trying to create a velocity model to use in TauPy (which I am new to although I do have some experience with ObsPy). As I only have my velocity model as a .csv I went and created a .nd file where I took the depth, Vp, Vs and Vp/Vs ratio. I only have an optimized velocity model down to 15km (all of my events are actually within the upper 5km!) but I extended it to the inner core using values from IASP91 as you need the Moho/CMB in the velocity file.
When I run:
SlownessModelError: No layer contains this depth
I was wondering if someone could explain this error to me, as my understanding was that the code was simply taking the .nd file and creating a .npz file of the same thing?
Any help would be great so I can use my own velocity model to calculate travel times!