Portuguese scientists simultaneously measured wind speeds in two different regions of Venus’s atmosphere. The results of the study are published in the journal Atmosphere.

Scientists have measured the speed of the winds on Venus at a distance of 20 km from each other. It turned out that energy from the lower and hotter layers of the atmosphere of Venus is transferred upward. The results of the study confirm the hypothesis that it is this process that leads to wind acceleration.

Despite its proximity to Earth and almost the same size, Venus is not like our planet. The high temperature on its surface of 450 ° C is maintained by the greenhouse effect of the atmosphere, which consists almost of carbon dioxide. At an altitude of 70 km above the planet, the storm wind does not stop.

Tracking the movement of clouds at intervals of one hour, the researchers indirectly calculated the speed of the wind. It is about 216 km / h in the lower part of the atmosphere at middle latitudes, decreasing by half closer to the poles. Other studies and computer simulations have shown that the wind speed at the bottom of the clouds is nearly constant and does not differ between day and night.

During the study, scientists used data from the Telescopio Nazionale Galileo telescope on Earth and the Venus Express probe of the European Space Agency (ESA).