The colors were spanning from white green to violet red color. The severe depletion of stratospheric ozone in late winter and early spring in the So, I think it was nice to take some shots and document them. Nacreous clouds are polar stratospheric clouds that occur high in the stratosphere moments after sunset in regions close to or in the Arctic Circle. I will update this article. A rare cloud was snapped over Langwathby in Cumbria on Thursday evening. That's an unusual place to spot them, as they usually appear along polar regions. The circulating air in the vortex needs to align with the jet stream to allow the gravity waves to propagate to the upper atmosphere. This type of clouds is extremely rare to see and have been a welcome addition to the sights on our tours. Called nacreous or polar stratospheric clouds, the rare phenomena adorned the British sky in the wake of Storm Henry. That would come in the form of manmade chemicals like CFCs, HCFS, freon, and halons, most of which have been dramatically reduced thanks to international agreement. Some really rare clouds were spotted in Oslo (Norway) that I have never seen before. The clouds shine their iridescent filmy colours into the dawn brightening sky. So there I was, climbing the nearest hill dressed up for Christmas, slightly anxious about my expensive suit among all the trees and bushes, setting up my gear to try to get one of these be-there-at-the-right-time shots. The colors can also be seen when Stratospheric nacreous clouds show up. "They … This amazing phenomena was taking on film in Sweden. They were expected, however, because stratospheric temperatures over Ireland and UK are very low and forecast to remain so for a … All rights reserved. PSCs are far more rare than auroras. I could see out of my window something was so bright at the dark sky, then i could see those clouds… Officially pronounced with a … Best tips on how to visit Tivoli Friheden in Aarhus in Denmark, Fine for riding light rail Tram and Metro without ticket in Oslo, Norway. 182 Incredibly rare sighting over northern Sweden as 'polar stratospheric cloud' shimmers in the sky . 20.5m members in the gifs community. Nacreous clouds, polar stratospheric clouds typeII, are exceeding rare at such low latitudes. "They reveal extreme conditions in the atmosphere and promote chemical changes that lead to destruction of vital stratospheric ozone.". In rare … Type One – Compared to type one clouds, these types of clouds are less enormous. They are much smaller but some sort of particles gives the edges this specter of colors. Photograph by Owen Humphreys, PA Wire, Associated Press. If you disable this cookie, we will not be able to save your preferences. 379 votes, 11 comments. During the last few days we have been so incredibly lucky to observe lenticular polar stratospheric clouds in the south and southeast of Iceland. No need to register, buy now! Discover (and save!) “Local villagers in both Abisko and Kiruna who are more than 70 years old confirmed they have never seen anything of the size, scale, or intensity,” reports Blakley. These high altitude clouds form only at very low temperatures help destroy ozone in two ways. They are less likely to be rainbow colored and tend to glisten like crystal due to the level of ice contained in them. FACTS about Polar stratospheric clouds These type clouds in the winter polar stratosphere at altitudes of 15,000–25,000 m. They are best observed during civil twilight, when the Sun is between 1 and 6 degrees below the horizon, as well as in winter and in more northerly latitudes.Altitude: 15,000–25,000 m; (49,000–82,000 ft)Appearance: Glowing brightly with vivid iridescent colorsClassification: OtherAbbreviation: PSCDistrita spotted them on 24th of January 2020 – Source: Wikipedia. Ice polar stratospheric clouds (nacreous clouds) form at temperatures below the ice frost point, typically near −85 °C, which is colder than the average lower stratosphere temperature.The characteristic bright iridescent colours, resulting from diffraction and interference of light waves, suggest that the clouds are composed of similarly sized spherical crystals of about 10 μm in diameter. In the stratosphere moments after sunset and before sunrise iridescent filmy colours into the dawn brightening sky Incredibly sighting... 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