I'm reading this guy right now. Basically I need to add to a ray tracing simulation components for shear waves propagation (in the acoustic/VHF range). Essentially this is related to section 1.2 of the book, especially 1.2.6 to 1.2.8
I'm going through multiple interfaces, some of which are liquids. Shear waves don't propagate in this.
The initial wave in the model is a P-wave, propagating through liquids. It may come into contact with a solid interface. In that case, there will be a Rp (reflected P-wave), a Tp (transmitted P-wave) and Ts (transmitted shear wave).
When I arrive at the next interface, it may be a solid ---> liquid interface. In that case, for the previous Ts wave, where would be a SH (shear horizontal wave, parallel to the plane of the interface) and an SV component (perpendicular to it). Something like that (from the book p.64):
If that's a solid ---> liquid interface next, then the SH wave would only result in a Rsh wave (reflected horizontal shear wave). It would be trapped between the 2 solid-liquid interface so I can stop tracking it. However, the SV waves at the solid-->liquid interface would generate a Tp (transmitted p-wave), a Rp (reflected p-wave) and a Rs wave (reflected S-wave). However since I don't know the amplitude of the SH vs SV component, how can I correctly account for what happens at the 2nd solid-->liquid interface that the first Ts wave encounters?