标签： 埃特纳火山

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埃特纳火山上空的光柱

2021年11月15日 Light Pillar over Volcanic Etna Image Credit & Copyright: Giancarlo Tinè Explanation: What happening above that volcano? Something very unusual — a volcanic light pillar. More typically, light pillars are caused by sunlight and so appear as a bright column that extends upward above a rising or setting Sun. Alternatively, other light pi...

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埃特纳火山上空的荚状云

2019 August 19 Lenticular Clouds over Mount Etna Image Credit & Copyright: Dario Giannobile Explanation: What’s happening above that volcano? Although Mount Etna is seen erupting, the clouds are not related to the eruption. They are lenticular clouds formed when moist air is forced upwards near a mountain or volcano. The surreal scene was captured ...