Stability of the Jupiter Southern Polar Vortices Inspected Through Vorticity Using Juno/JIRAM Data

Abstract The Jovian InfraRed Auroral Mapper (JIRAM) onboard the NASA Juno mission monitored evolution of Jupiter’s polar cyclones since their first observation ever in February 2017. Data acquired by JIRAM have revealed cloudy organized a complex, yet stable geometrical pattern at both poles. Several studies investigated dynamics and structure these cyclones, to understand physical mechanisms behind formation evolution. In this work, we present vorticity maps deduced from wind fields for region poleward ∼−80°, which has been extensively covered over last four years observations. cyclonic features related are embedded slightly, but diffused anticyclonic circulation, short‐living anticyclones emerge with respect surroundings. Although general stability whole system is strongly confirmed variations shape vortices, as well changes local structures, observed.