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There are beautiful clouds, which are so rare that defy classification
In nature, sometimes there are clouds like images from a science fiction movie. They are so rare and so unlike anything else that meteorologists have found them a new type of cloud - undulatus asperatus, literally "wavy rough».
This is how scientists explain their nature:
«While the majority of low cloud layers are most often flat, asperatus, they are likely to have in the lower significant vertical structure. Presumably, asperatus can be connected with lenticular cloud, formed near the mountains or vymeobraznymi clouds that are usually associated with thunderstorms or occur during fёna - warm and dry local wind blowing from the mountains to the valleys. »
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via factroom.ru
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