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Polar Stratospheric Clouds

All articles tagged with #polar stratospheric clouds

science-and-environment2 years ago•3 min saved

Rare and Stunning 'Rainbow Clouds' Illuminate Northern Skies in Spectacular Display

Spectacular "rainbow clouds," also known as nacreous or polar stratospheric clouds, have been spotted in the skies of northern regions. These high-altitude clouds, which form between 13 and 19 miles above Earth's surface, are illuminated by sunlight from below the horizon, creating a stunning rainbow effect. While they provide a mesmerizing display, nacreous clouds also contribute to ozone depletion in the Arctic.

via Space.com|

#nacreous-clouds #ozone-depletion #polar-stratospheric-clouds

science-and-environment2 years ago•2 min saved

Rare and Mesmerizing Rainbow Clouds Illuminate Arctic and Northern Skies

Rare rainbow-colored clouds, known as polar stratospheric clouds (PSCs), have been observed in the skies over the Arctic for three consecutive days due to an unusual cold snap in the upper atmosphere. These iridescent clouds, also called nacreous clouds, were seen in parts of Norway, Sweden, Finland, Alaska, and even Scotland. PSCs are formed by tiny ice crystals that refract sunlight, creating a rainbow-like effect. The recent appearance of PSCs may have been triggered by the current El Niño event or human-caused climate change. Experts predict a high chance of more PSC sightings in the Arctic in the coming months.

via Livescience.com|

#arctic #atmospheric-conditions #climate-change