Lightning. Forked cloud-to-air lightning over an urban area. Lightning occurs when a large electrical charge builds up in a cloud. This is probably due to the rapid movement of water droplets and ice particles in the turbulent interior of the cloud. Cloud-to-air lightning occurs between the positively charged upper levels of a cloud and the atmosphere. 'Leader electrons' leave the cloud and,on reaching the atmosphere,there is a backflow of energy along the path of the electrons. This produces a bright flash of light and high temperatures. This type of lightning is less powerful than cloud-to-ground lightning. Photographed in Finland | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / PEKKA PARVIAINEN |
Bildgröße: | 5401 px × 3533 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |