Wk. Dewar et Pd. Killworth, DO FAST GRAVITY-WAVES INTERACT WITH GEOSTROPHIC MOTIONS, Deep-sea research. Part 1. Oceanographic research papers, 42(7), 1995, pp. 1063-1081
This paper shows that the rapid, inertia-gravity oscillations present
in all numerical integrations of nonlinear rotating fluid systems have
no effect on the slower, quasi-geostrophic, oscillations, at least to
leading order in Rossby number. This result is confirmed numerically
with reduced-gravity two- and one-layer initial value problems with La
placian or biharmonic frictions. Differences between these findings an
d those from theoretical turbulence are discussed; these are probably
due to the frictional terms, which are active in the numerical calcula
tions here and act to damp out the enstrophy cascade.