木星北极的气旋
(原标题: Cyclones at Jupiter's North Pole)
2025-03-09
浏览次数: 54
为什么木星北极周围有这么多气旋？这个话题仍在研究中。美国宇航局绕木星运行的朱诺号探测器于2018年采集了数据，用于构建木星北极奇特气旋的惊人景象。测量木星云顶的热发射，红外观测并不局限于被阳光照射的半球。他们揭示了一个直径约4000公里的气旋周围的八个气旋特征，正好与这颗巨大行星的地理北极相偏移。类似的数据显示木星南极有一个气旋和五个环极气旋。南极气旋比它们的北方表亲稍大一些。奇怪的是，曾经环绕土星运行的卡西尼号的数据显示，土星的南北两极各只有一个气旋风暴系统。
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Why are there so many cyclones around the north pole of Jupiter? The topic is still being researched. NASA's robotic Juno mission orbiting Jupiter took data in 2018 that was used to construct this stunning view of the curious cyclones at Jupiter's north pole. Measuring the thermal emission from Jovian cloud tops, the infrared observations are not restricted to the hemisphere illuminated by sunlight. They reveal eight cyclonic features that surround a cyclone about 4,000 kilometers in diameter, just offset from the giant planet's geographic north pole. Similar data show a cyclone at the Jovian south pole with five circumpolar cyclones. The south pole cyclones are slightly larger than their northern cousins. Oddly, data from the once Saturn-orbiting Cassini mission has shown that Saturn's north and south poles each have only a single cyclonic storm system.