This PR adds DirectionalErtelPotentialVorticity, which computes the contribution to the Ertel PV from a specific direction. This is useful for rotated domains, especially when studying symmetric instabilities, and it's not trivial to implement since it needs several sines and cosines that don't compile on a GPU using abstract operations.
I don't love the name DirectionalErtelPotentialVorticity but I couldn't find a better one. So I'm open to name suggestions here.
This PR adds
DirectionalErtelPotentialVorticity, which computes the contribution to the Ertel PV from a specific direction. This is useful for rotated domains, especially when studying symmetric instabilities, and it's not trivial to implement since it needs several sines and cosines that don't compile on a GPU using abstract operations.I don't love the name
DirectionalErtelPotentialVorticitybut I couldn't find a better one. So I'm open to name suggestions here.