copyrighted image Planet C probe japan that is circling around Venus sent photographs of one of the waves bigger than ever before has been in the Solar System.
the scientists believe that the wave was generated in a similar way as are the waves on the surface of the water of a stream that flows over a rocky bottom.
In this case, the water is the lower atmosphere and the bedrock are the mountains on the surface of Venus.
The images of the phenomenon that lasted for four days, were taken on December 2015.
Venus is the second planet in accordance with the distance to the Sun and the hottest of all, with temperatures that reach up to 460º C.
Mountains
Something that is funny, is that the structure -which stretched for 10,000 kilometers- remained stationary at the height of the top of the clouds of Venus, in a mountainous region known as Aphrodite Terra.
So this was pointed out by Makoto Taguchi, of the University Rikkyo University in Japan, and Atsushi Yamazaki of the Aerospace Exploration Agency of Japan.
Also noticed that your temperature was found to be greater the regions of the atmosphere surrounding them.
This, in principle, it is difficult to understand if we take into account that in the dense upper atmosphere of the planet the clouds are moving at 100 meters per second.
The speed at which they travel the clouds is much faster than the speed of rotation of the planet. This tour about its axis tan slowly that a day on Venus lasts longer than a year, that is to say, the time it takes the planet to complete its orbit around the Sun.
According to the researchers, the phenomenon is the result of a wave of gravity that is generated when the lower atmosphere passes over the mountains , and then propagates up, through the dense atmosphere of Venus.
The gravity waves are produced when a fluid -as a liquid, gas or plasma – is shifted from a position of equilibrium.
“If you have a stream flowing on a rock, will generate gravity waves that propagate upward through the water. On the surface of the grain, you will notice changes in the height,” explained Colin Wilson, scientific planetarium of the University of Oxford, in the Uk, who is not involved in the study.
“What is happening here is a bit different, because what we see in the higher temperatures of the clouds. But the particles of air are moving up and down, like moving particles of water”, he added.
complex Dynamics
In the study, published in Nature Geoscience, the scientists point out that this research “presents a direct evidence of the existence of gravity waves, stationary and also shows that these may be large-scale, perhaps the biggest seen ever before in the Solar System.”
According to him Wilson said to the BBC, scientists are in the truth: “(the structure) extends from pole to pole, which is a distance of phenomenal”.
“On Jupiter you can’t have something like that because the rapid rotation of the planet causes the atmosphere to be divided into belts. The slow rotation of Venus is that it allows a phenomenon like this.”
The observations made by the japanese researchers show that the atmospheric dynamics Venus may be more complex than is supposed.
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