Nacreous Clouds Above Ross Island. Nacreous clouds above Ross Island,Antarctica. These polar stratospheric clouds at 80,000 feet are the highest of all clouds. They only occur in the polar regions when the stratospheric temperature dips below 100 degrees below zero Fahrenheit. They are also the site of chemical reactions that break down ozone in the upper atmosphere and contribute to the creation of the ozone hole above Antarctica | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / National Science Foundation |
Taille de l’image : | 3456 px × 2304 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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