Collisions between Rossby solitons

Details Collisions between Rossby solitons Collisions between Rossby solitons

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9...58a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, Jan. 1983, p. 58-64) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, Jan.-Feb. 19

Astronomy and Astrophysics

Astronomy

4

Inelastic Collisions, Planetary Atmospheres, Planetary Waves, Solitary Waves, Two Dimensional Flow, Vortices, Anticyclones, Jupiter Red Spot, Planetary Rotation, Propagation Velocity, Viscosity, Wave Propagation, Zonal Flow (Meteorology)

Scientific paper

Collisions between pairs of two-dimensional, anticylonic eddies which take the shape of solitary waves, or Rossby solitons, have been experimentally studied in a shallow rotating layer of water. If one eddy overtakes another at a high enough speed, the two will irreversibly merge into a single eddy which will then drift stably in the liquid and persist for a time determined by the viscosity of the medium. The resultant eddy will again be a Rossby soliton. If one of the eddies is substantially better formed than the other, it will swallow its partner, whatever the mutual position of the two may have been. If the rate of overtake is very slow, the solitons will coexist with hardly any interaction. If solitons of approximately the same amplitude encounter each other at an intermediate rate, they will destroy each other and become reorganized as a zonal flow. These results may be pertinent to the nature of Jupiter's Great Red Spot.

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