Hoar frost on birch trees (Betula sp). Hoar frost is formed when moist air above the ground cools rapidly to below freezing point. Needle-like deposits of ice crystals are formed on cold surfaces such as tree branches when water vapour or condensation (dew) freezes. Photographed in the Northumberland National Park,England | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fraser, Simon |
Bildgröße: | 3408 px × 4172 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |