Polar stratospheric cloud

English: Polar stratospheric cloud (PSC)

Deutsch: Polare Stratosphärenwolken

Nederlands: Parelmoerwolk

Svenska: Polarstratosfäriskt moln (PSC), pärlemormoln

中文：极地平流层云

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  NASA source: Arctic polar stratospheric clouds like these lead to ozone destruction. Credit: Ross Salawitch
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  A type 2 (water) PSC photographed from NASA aircraft
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  Nacreous Clouds over the NASA Radome, McMurdo Station, Antarctica
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  A veil of type I PSC, easily confused with cirrostratus clouds or tropospheric haze
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  Polar stratospheric cloud over Asker, Norway
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  Deutsch: Irisierende Wolken aus Eispartikeln (Polare Stratosphärenwolken)

  English: Iridescent clouds of ice particles (Polar Stratospheric Clouds)
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  Nacreous clouds over Aberdeenshire, Scotland
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  Nacreous cloud over Aberdeenshire, Scotland
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  Norway
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  Over Western Norway