One might say, that in a quick snap, though now dissociated, both waves continue on to form two independent spiral configurations. The outermost wave is seen to favor evolution into an inside-shelled spiral, which achieves standing wave conditions at the innermost edges of the wave, thus allowing it to achieve stability and permanence. Obviously, besides a dual wave radial configurations, with a little bit of luck, three waves, simultaneously, might initiate the formation of a three wave configuration, and even rarer four and five wave configurations. As a whole, these configurations have not been studied, only their possibility. Presumably all would be as unstable as they would be rare, decaying into a variety of different spiral configurations and simple waves, as byproduct.
Surfaces share no particular order or arrangement.
Finite region of the field becomes less random and momentarily radial. Single high speed wave enters a random field and then passes through. High speed wave enters a radial field. High speed wave enters a region after the radial array has disappeared. High speed wave enters a radial field and spirals around its central core.