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Why the atmosphere of this planet rotates 60 times faster than its surface? On this mystery scientists are fighting with the 60-ies of the last century, when it was opened this amazing phenomenon. And now a group of Japanese and American researchers were able to understand its essence, Japanese probe Akatsuki, which goes around Venus in 2015.
It turned out that the phenomenon of several reasons. Moreover, different latitudes have different mechanisms.
For example, at low latitudes, near the equator, superprestige atmosphere is maintained by the temperature difference between day and night hemispheres. The thing is, a day on Venus lasts 243 earth days. So the day hemisphere manages to warm up, especially because the planet is much closer to the Sun than the Earth. Besides a thick carbon dioxide atmosphere creates a strong greenhouse effect. Naturally, the gas goes up, which is expanding. And the pressure in it decreases.
Different pattern in the atmosphere over the opposite side of the planet, above the night hemisphere. There are low temperature and high pressure. It is this pressure differential creates a powerful stream of wind which with great speed rushes first to the equator, where the intense heat, and then in the direction of rotation of the planet. And it creates superprestige at low latitudes.
As for the polar and middle latitudes, it can answer nonthermal gas wave, comparable in size to a planet, and large-scale turbulence.
A study published in the journal Science.
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