Archive

Posts Tagged ‘Saturn weather’

Massive Storm Pulls Water And Ammonia Ices From Saturn’s Depths

September 3, 2013 1 comment

Once every 30 years or so, or roughly one Saturnian year, a monster storm rips across the northern hemisphere of the ringed planet.

In 2010, the most recent and only the sixth giant storm on Saturn observed by humans began stirring. It quickly grew to superstorm proportions, reaching 15,000 kilometers (more than 9,300 miles) in width and visible to amateur astronomers on Earth as a great white spot dancing across the surface of the planet.

Now, thanks to near-infrared spectral measurements taken by NASA’s Cassini orbiter and analysis of near-infrared color signatures by researchers at UW-Madison, Saturn’s superstorm is helping scientists flesh out a picture of the composition of the planet’s atmosphere at depths typically obscured by a thick high-altitude haze.

Full Story: http://www.news.wisc.edu/22083

Revealed The Mystery Of The Gigantic Storm On Saturn


We now understand the nature of the giant storms on Saturn. Through the analysis of images sent from the Cassini space probe belonging to the North American and European space agencies (NASA and ESA respectively), as well as the computer models of the storms and the examination of the clouds therein, the Planetary Sciences Group of the University of the Basque Country has managed to explain the behaviour of these storms for the very first time. The article explaining the discovery, the lead author being Enrique García Melendo, researcher at the Fundació Observatori Esteve Duran – Institut de Ciències de l’Espai, of Catalonia, was published in Nature Geosciences.

Approximately once every Saturnian year – equivalent to 30 Earth years – an enormous storm is produced on the ringed planet and which affects the aspect of its atmosphere on a global scale. These gigantic storms are known as Great White Spots, due to the appearance they have on the atmosphere of the planet. The first observation of one of these was made in 1876; the Great White Spot of 2010 was the sixth one to be observed. On this occasion the Cassini space vehicle was able to obtain very high resolution images of this great meteorological structure.

Full Story: http://www.ehu.es/p200-hmencont/en/contenidos/noticia/20130623_tormenta_saturno/en_info/tormenta_saturno.html