Tree covered in hoar frost. Hoar frost results when heat is lost through radiation into the open sky on cold clear nights,causing objects to become colder than the surrounding air. This temperature difference causes the water in the warmer air to condense on the colder objects and then freeze into small ice crystals. Photographed near Horton,Gloucestershire,UK,in December | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Ashfield, Samuel |
Taille de l’image : | 5223 px × 3346 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |