Aircraft contrails,or vapour trails,in the sky over a building. Contrails are artificial clouds formed from frozen water droplets from the exhaust of the engines of an aircraft. They form when aircraft are flying at altitudes exceeding 5000 metres and when the upper atmosphere is nearly saturated with moisture. In dry air the contrails quickly dissipate. Photographed over Finland | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / PEKKA PARVIAINEN |
Bildgröße: | 5401 px × 3551 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |