Added | Tue, 24/11/2020 |
Источники | |
Дата публикации | Mon, 23/11/2020
|
Версии |
On November 22, residents of Russia noticed a strange phenomenon-bright silvery clouds. Observers were shocked. They decided that something terrible was happening in the atmosphere, since there were abnormal clouds.
The first photo reports of the observation came from Cheboksary. In the image, you can see the horizon, which glows with an ominous pearl light at 06: 20. then came the materials from Kaliningrad. It became clear to people that the phenomenon is massive and can only be seen where the sky is clear.
The nature of silvery clouds is such that they appear in June and repeat until the end of July. Some people saw the phenomenon in mid-August, but never in late November. Clouds appear at an altitude of up to one hundred kilometers and are ice crystals that are exposed to sunlight. This explains the glow. At such a high altitude, the Sun shines even when it is night on Earth.
Water shrouds dust in the air and then freezes. Often, instead of dust, small meteorites fall, which do not burn up in the atmosphere due to their small size. The bodies seem to float in the air, gradually sinking down.
For the appearance of silvery clouds, you need three conditions: low temperatures (in summer, there are air flows of icy air from the Arctic), the presence of dust or small particles, and sunlight. In winter, the formation of phenomena is impossible, in the off-season-very rarely.
It is interesting that in ancient times there were no silvery clouds: they began to appear only in the 19th century. What changes in the atmosphere are associated with their appearance is a mystery.
This summer, clouds over Russia were observed almost every night, although they usually glowed once a week. The November phenomenon is associated with the depletion of the ozone layer due to human activities. The thick layer absorbs all the ultraviolet light, preventing the ice crystals from glowing. Carbon dioxide, in turn, radiates the heat received from the Earth into space (at an altitude of 100 km, there is nothing to transfer heat, and it is not typical for gas to retain it). And there is a cooling of the upper atmosphere.
Новости со схожими версиями
Log in or register to post comments