087 Magical Diamond Dust

11 . 02 . 2020

Contributors


Henry Páll Wulff
Expedition Guide, Naturalist
Chris Marquardt
Photographer, Author, Podcaster, Traveler, Educator

Henry Páll Wulff

Expedition Guide, Naturalist

Chris Marquardt

Photographer, Author, Podcaster, Traveler, Educator

Notes

While Antarctica is considered one of the most inhospitable places in the world by its ice and harsh conditions, the low temperatures on the ground provide some of the most breathtaking weather phenomena. Names like Brockenspectre, Green Flash or Halo arouse curiosity, but really exciting is the magic sounding diamond dust. Although there are low levels of precipitation in Antarctica, meteorological wonders abound and diamond dust is one of them! The air temperature in Antarctica is often low enough for water vapour to condense directly out of the atmosphere and form tiny ice crystals which then fall. On a sunny day these catch the sunlight and shine like a sprinkling of diamonds in the sky, hence the name diamond dust. If the crystals are orientated in exactly the right way they can give rise to brilliant halos. Diamond dust is also responsible for beautiful optical phenomena like sun dogs, halos and light pillars. CP 061 Ice and Flames: Those Mysterious Arctic Volcanos. Throwing hot water in the air

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