Annular modes explain much of the internal variability of Earth’s atmosphere but have never been identified as influential on other planets. Using data assimilation datasets for Mars and a general circulation model for Titan, we demonstrate that annular modes are prominent in the atmospheres of both worlds, capturing a larger fraction of their respective variabilities than Earth’s. One mode describes latitudinal shifts of the jet on Mars, as on Earth, and vertical shifts of the jet on Titan. Another describes pulses of mid-latitude eddy kinetic energy on all three worlds, albeit with somewhat different characteristics. We demonstrate that this latter mode has predictive power for regional dust activity on Mars, revealing its usefulness for understanding Martian weather. The similarity of annular variability in dynamically diverse worlds suggests its ubiquity across the Solar System, potentially extending to exoplanets.

环形模式解释了地球大气的大部分内部变化，但从未被确定为对其他行星有影响。使用火星的数据同化数据集和土卫六的一般环流模型，我们证明环形模式在两个世界的大气中都很突出，比地球捕获了更大比例的各自变化。一种模式描述了火星上喷流的纬度变化，就像地球上一样，以及泰坦上喷流的垂直变化。另一个描述了所有三个世界的中纬度涡动能脉冲，尽管特征有些不同。我们证明了后一种模式对火星上的区域尘埃活动具有预测能力，揭示了它对了解火星天气的有用性。