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 mid-morning in spring, in southern Berkshire, UK. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / STEPHEN BURT |
Bildgröße: | 3744 px × 5616 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |