Cumulus mediocris clouds over trees. Cumulus clouds often form at cold fronts where the advancing, cool air forces warm air upwards. They typically occur at under 2000 metres altitude, with the mediocris variety having a moderate vertical extent. Photographed in the late morning in summer, in southern Berkshire, UK. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / STEPHEN BURT |
Taille de l’image : | 3744 px × 5616 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |