Reveal the rich variety of meteorological phenomena of the Great Red Spot of Jupiter
Reveal the rich variety of meteorological phenomena of the Great Red Spot of Jupiter
Reveal the rich variety of meteorological phenomena of the Great Red Spot of Jupiter
A research work carried out by an international team of researchers led by Agustín Sánchez Lavega, Professor of Physics at the UPV / EHU (Spain) and Euskadi Research Award 2016, shows the existence of a rich diversity of atmospheric phenomena confined in the interior of the Stain by the intense hurricane winds that circulate around its periphery with speeds of about 450 km / hour.
The Astronomical Journal has published the work and selected it in its news highlighted by the American Astronomical Society. The Great Red Spot of Jupiter, an immense and long-lived oval whirlwind of 20,000 km in size, is perhaps one of the most popular atmospheric phenomena of the solar system, it contains, according to the study, clusters of clustered storms produced by the condensation of ammonia vapor, narrow waves of gravity similar to those that form on Earth when the wind blows on the summit of the mountains. However, in its central area there is calm and the clouds move rotating in the opposite direction with maximum speeds of only 25 km / hour.
"These phenomena are confined in a thin layer only about 50 km thick, which represents the cloud ceiling of the Channel, while it extends in depth probably a few hundred kilometers," the researchers comment, using the images taken by JunoCam after his near passage through the Great Red Spot. These and other aspects of this phenomenon are in the focus of the investigations that the Juno mission will carry out in the coming years.
(Photo: UPV / EHU)
The Great Red Spot, observed for the first time with certainty about 150 years ago, highlights the telescope for its reddish color in front of the white, yellowish and ocher clouds of the rest of the planet. Despite the numerous studies that have been conducted on this phenomenon, its nature represents a challenge for planetary meteorologists.
NASA's Juno space mission launched for the purpose of studying Jupiter's deep atmosphere, the planet's interior and its complex magnetic field, entered orbit in July 2016. Among the scientific instruments on board is a camera, called JunoCam, designed to take images of the planet with the purpose of making publicity and encouraging citizen participation in science. The first images sent from the vicinity of Jupiter suggested the potential scientific use of the camera since they showed details of the atmosphere of about 7 km, a resolution never before reached.
In addition, in another work of the Planetary Science Group led by Ricardo Hueso, a study of the impacts of bolides in the atmosphere of Jupiter detected in recent years by amateur astronomers from around the world is presented. Between the years 2010 and 2017, 5 light flashes of just 1 second duration were captured, produced by bodies between 5 and 20 m in size. The calculations indicate that between 10 and 65 impacts per object of this size can occur a year in Jupiter although its detection becomes complicated due to its short duration.
This work has echoed the journal Nature in its Research Highlight section on October 4. (Source: UPV / EHU)
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