Polar vortex and jet stream. Artwork showing the the causes and effects of a breakdown of the polar vortex (white arrows) over the Arctic. The polar jet stream (7-12 km altitude,light blue arrows) is one of the fast flowing high-altitude narrow air currents that circle the Earth. They can have a major influence on the weather. Here the polar jet stream has weakened and moved southwards in the wake of a low pressure system (red arrows) moving east over the Atlantic. Cold air flowing south from the Arctic brings ice and snow to northern parts of Europe and the north-eastern USA. The direction of rotation of the Earth's axis is also shown (top centre) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hks, Gary |
Bildgröße: | 5268 px × 3329 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |