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.
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Leheküljed kategoorias "Polar stratospheric clouds"
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Failid kategoorias "Polar stratospheric clouds"
Järgmised 24 faili on selles kategoorias (kokku 24).
- Arctic stratospheric cloud.jpg 640 × 469; 14 KB
- Eiswolken.jpg 2048 × 1536; 943 KB
- Filefjell1.JPG 5184 × 3456; 5,53 MB
- Filefjell2.JPG 5184 × 3456; 5,12 MB
- Filefjell3.JPG 5184 × 3456; 5,27 MB
- Filefjell4.JPG 5184 × 3456; 5,46 MB
- MSRUSL.jpg 3568 × 2376; 895 KB
- Nacreous clouds Antarctica.jpg 1024 × 768; 240 KB
- Nacreous clouds.jpg 4000 × 3000; 2,61 MB
- Nube polar esratosferica.jpg 540 × 405; 36 KB
- Parelmoerwolken 2FEB2016 019 sml.jpg 998 × 700; 248 KB
- Perlemorsky 2.jpg 3006 × 1599; 2,58 MB
- Perlemorsky 3.jpg 2685 × 1224; 1,59 MB
- Perlemorsky januar 2008.jpg 2108 × 1320; 1,59 MB
- Perlemorskyer Polar Stratospheric Cloud.jpg 1600 × 1200; 446 KB
- Perlemorskyer Polar stratospheric cloud.jpg 2800 × 1979; 730 KB
- Polar stratospheric cloud type 2.jpg 1280 × 960; 88 KB
- Polar Stratospheric Cloud type 2.jpg 3024 × 4032; 2,32 MB
- Polar Stratospheric Cloud type I above Cirrus.jpg 2460 × 860; 380 KB
- Polar Stratospheric Cloud veil type I.jpg 1024 × 433; 50 KB
- Polar stratospheric cloud. Lake Mjosa, Norway, Dec 2014.JPG 3872 × 2592; 2,91 MB
- Polar stratospheric clouds over Oslo, Norway.jpg 4272 × 2848; 1,17 MB
- Polar Stratospheric Clouds, Lake Mjosa, Norway, Dec2014. No Photoshop!.JPG 3872 × 2592; 3,15 MB
- Titan's Giant North Pole Cloud.jpg 991 × 752; 166 KB