Deep, Closely Packed, Long-lived Cyclones on Jupiter’s Poles

Abstract The Juno mission to Jupiter has found closely packed cyclones at the planet’s two poles. observation that these coexist in very confined space, with outer rims almost touching each other but without merging, poses a big puzzle. In this work, we present numerical calculations showing convectively sustained, can form and survive merging for long time polar region of deep rotating convection zone (for thousands planetary rotation periods). Through an idealized application inertial stability criterion axisymmetric circulations, it is large Coriolis parameter near pole plays crucial role allowing be closely.