TY JOUR TI Structural Stability of Composite Vortices and Its Application to Jupiter's Great Red Spot KW Jupiter's Great Red Spot KW composite vortex KW quasi-geostrophic vortex KW non-stationary vortex KW potential vorticity JO Russian Journal of Earth Sciences AU Arakelyan, Y.M. AU Жмур, В.В. AU Чхетиани, О.Г. PY IS 26 PB Геофизический центр Российской Академии Наук