I've looked at a number of articles and the idea that Rossby waves play a key role in planetary formation seems to be in style. I have a few questions. What are the necessary and sufficient conditions for formation of Rossby waves in a rotating self-contained system? I'd guess it happens whenever there is elasticity and a phase transition. It seems that in the planetary formation case the phenom is essentially 3D. There is a "strong vertical component." Is that because the Rossby wave is shoving outermore stuff out of the way? Youtube has a 2D display of a 3D simulation, but what I'd really like to see is a 3D display of the 3D simulation. Would it look like two rings intersecting each other at right angles? It seems to me that the Coriolus force would generate a retrograde equatorial current. That would be the equatorial ring. Then the "vertical component" would make a sort of elliptical shape as the stuff moved around the Rossby wave. I'd also think that the waves that form in the the planet-forming system would be somewhat like a planet formed entirely of water. ? I'd also think that the planet Jupiter would have big Rossby waves. Maybe they are hidden under the surface.