Thunder cloud showing anvil formation. Thunder clouds are large and turbulent clouds carrying rain or hail. As the cloud grows it forms rising spikes that create a flattened anvil-shaped top (as shown here) as they hit a layer in the atmosphere called the tropopause. The resulting structure is known as a hammerhead or thunderhead and is a clear sign of an impending thunderstorm | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Svensson, Kaj R. |
Taille de l’image : | 5400 px × 2700 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |