标题： 木星极地的深厚、密集、长久存在的旋风 显示英文标题

标题： Deep, Closely-Packed, Long-Lived Cyclones on Jupiter's Poles

摘要： 朱诺号木星探测任务发现在这颗行星的两极存在密集排列的气旋。 这些气旋共存于非常有限的空间内，外缘几乎相互接触但不合并的观测结果构成一个巨大的谜团。 在这项工作中，我们展示了数值计算结果，表明对流维持的密集气旋可以在深厚旋转对流区的极地地区（持续数千个行星自转周期）形成并长时间存活而不合并。 通过轴对称环流惯性稳定性标准的理想化应用发现，极地附近的巨大科里奥利参数在允许气旋紧密排列方面发挥了至关重要的作用。 显示英文摘要

摘要： Juno Mission to Jupiter has found closely-packed cyclones at the planet's two poles. The observation that these cyclones 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 that convectively sustained, closely-packed cyclones can form and survive without merging for a very long time in polar region of a deep rotating convection zone (for thousands of planetary rotation periods). Through an idealized application of the inertial stability criterion for axisymmetric circulations, it is found that the large Coriolis parameter near the pole plays a crucial role in allowing the cyclones to be packed closely.