Category:Polar stratospheric clouds
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Polar stratospheric clouds (also called Nacreous clouds) are distinct from ordinary Iridescent clouds: they only appear at high latitude regions, they form in the stratosphere, about 20 km high; they are made either of ice crystals, or of compounds of water and nitric or sulphuric acids.
The iridescence is the result of diffraction around those very small and homogeneous particles, just like in ordinary iridescent clouds and Coronae.
They are also distinct from Noctilucent clouds, which are typically 80 km high.
clouds occurring in the stratosphere in high-latitude regions  | |||||
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Subcategories
This category has only the following subcategory.
Pages in category "Polar stratospheric clouds"
This category contains only the following page.
Media in category "Polar stratospheric clouds"
The following 34 files are in this category, out of 34 total.
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Aeroplane in front of polar stratospheric clouds.jpg 8,192 × 5,464; 22.22 MB
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Arctic stratospheric cloud.jpg 640 × 469; 14 KB
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Eiswolken.jpg 2,048 × 1,536; 943 KB
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Filefjell1.JPG 5,184 × 3,456; 5.53 MB
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Filefjell2.JPG 5,184 × 3,456; 5.12 MB
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Filefjell3.JPG 5,184 × 3,456; 5.27 MB
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Filefjell4.JPG 5,184 × 3,456; 5.46 MB
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MSRUSL.jpg 3,568 × 2,376; 895 KB
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Nacreous clouds Antarctica.jpg 3,648 × 2,736; 2.76 MB
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Nacreous clouds.jpg 4,000 × 3,000; 2.61 MB
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Nube polar esratosferica.jpg 540 × 405; 36 KB
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Parelmoerwolken 2FEB2016 019 sml.jpg 998 × 700; 248 KB
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Perlemorsky 2.jpg 3,006 × 1,599; 2.58 MB
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Perlemorsky 3.jpg 2,685 × 1,224; 1.59 MB
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Perlemorsky januar 2008.jpg 2,108 × 1,320; 1.59 MB
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Perlemorskyer over Tysnes 22. desember 2023.jpg 8,192 × 5,464; 21.86 MB
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Perlemorskyer Polar Stratospheric Cloud.jpg 1,600 × 1,200; 446 KB
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Perlemorskyer Polar stratospheric cloud.jpg 2,800 × 1,979; 730 KB
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Perlemorskyer.jpg 1,125 × 823; 70 KB
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Perlemorsskyer over Oslo, 2023.jpg 4,032 × 3,024; 1.1 MB
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PermaLiv Perlemorsskyer 04-01-20.jpg 6,000 × 4,000; 14.86 MB
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PermaLiv perlemorsskyer 08-01-20.jpg 6,000 × 4,000; 17.56 MB
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PermaLiv perlemorsskyer 30-12-19.jpg 6,000 × 4,000; 33.2 MB
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Polar stratospheric cloud seen from Brissago, Ticino, Switzerland.jpg 2,000 × 1,326; 1.2 MB
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Polar stratospheric cloud type 2.jpg 1,280 × 960; 88 KB
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Polar Stratospheric Cloud type 2.jpg 3,024 × 4,032; 2.32 MB
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Polar Stratospheric Cloud type I above Cirrus.jpg 2,460 × 860; 380 KB
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Polar Stratospheric Cloud veil type I.jpg 1,024 × 433; 50 KB
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Polar stratospheric cloud Windischgarsten Austria 20240114a.jpg 6,000 × 4,000; 7.6 MB
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Polar stratospheric cloud. Lake Mjosa, Norway, Dec 2014.JPG 3,872 × 2,592; 2.91 MB
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Polar stratospheric clouds over Oslo, Norway.jpg 4,272 × 2,848; 1.17 MB
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Polar Stratospheric Clouds, Lake Mjosa, Norway, Dec2014. No Photoshop!.JPG 3,872 × 2,592; 3.15 MB
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Support Animations-Stills for SOLVE (SVS1603 - vortexTest).jpg 640 × 486; 41 KB
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Titan's Giant North Pole Cloud.jpg 991 × 752; 166 KB
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