Deep winds beneath Saturn’s upper clouds from a seasonal long-lived planetary-scale storm

  title={Deep winds beneath Saturn’s upper clouds from a seasonal long-lived planetary-scale storm},
  author={Agust{\'i}n S{\'a}nchez-Lavega and Teresa del R{\'i}o-Gaztelurrutia and Ricardo Hueso and Josep M. Gomez-Forrellad and J. F. Sanz‐Requena and Jon Haitz Legarreta and E. Garc{\'i}a‐Melendo and F. Colas and J. J. Lecacheux and Leigh N. Fletcher and David Barrado-Navascu{\'e}s and Douglas Parker},
Convective storms occur regularly in Saturn’s atmosphere. Huge storms known as Great White Spots, which are ten times larger than the regular storms, are rarer and occur about once per Saturnian year (29.5 Earth years). Current models propose that the outbreak of a Great White Spot is due to moist convection induced by water. However, the generation of the global disturbance and its effect on Saturn’s permanent winds have hitherto been unconstrained by data, because there was insufficient… 

Saturn: Storm-clouds brooding on towering heights

  • P. Read
  • Physics, Environmental Science
  • 2011
Numerical simulations show that Saturn's winds extend without decay deep down into the weather layer, which is an order of magnitude greater than those seen in previous storms.

The Great Saturn Storm of 2010–2011

In December 2010, a major storm erupted in Saturn's northern hemisphere near 37 degree planetographic latitude. This rather surprising event, occurring at an unexpected latitude and time, is the

Shallow Water simulations of Saturn ’ s Giant 1 Storms at different latitudes 2 3

10 11 Shallow water simulations are used to present a unified study of three major storms in Saturn 12 (nicknamed as Great White Spots, GWS) at different latitudes, polar (1960), equatorial (1990),

Moist convection in hydrogen atmospheres and the frequency of Saturn's giant storms

A giant storm erupted on Saturn in December 2010. It produced intense lightning and cloud disturbances and encircled the planet in six months. Six giant storms—also called Great White Spots—have been


We use far-infrared (20–200 μm) data from the Composite Infrared Spectrometer on the Cassini spacecraft to determine the zonal-mean temperature and hydrogen para-fraction in Saturn's upper

A complex storm system in Saturn’s north polar atmosphere in 2018

Saturn’s convective storms usually fall in two categories. One consists of mid-sized storms ∼2,000 km wide, appearing as irregular bright cloud systems that evolve rapidly, on scales of a few days.

Saturn's Seasonal Atmosphere at Northern Summer Solstice.

The incredible longevity of Cassini's orbital mission at Saturn has provided the most comprehensive exploration of a seasonal giant planet to date. This review explores Saturn's changing global

Analysis of a long-lived, two-cell lightning storm on Saturn

Lightning storms in Saturn’s atmosphere can last for a few days up to several months. In this paper we analyze a lightning storm that raged for seven and a half months at a planetocentric latitude of



Large-Scale Storms in Saturn's Atmosphere During 1994

Large-scale storms are rarely observed in Saturn's atmosphere, but their appearance traces the wind velocity field, providing information on the vertical structure of the clouds and on the dynamics

Temporal behavior of cloud morphologies and motions in Saturn's atmosphere

Saturn's atmosphere displays a variety of temporal changes in its cloud morphology at synoptic and planetary scales. Hemispheric long-term albedo variations, which are more pronounced at ultraviolet

Saturn Atmospheric Structure and Dynamics

Saturn inhabits a dynamical regime of rapidly rotating, internally heated atmospheres similar to Jupiter. Zonal winds have remained fairly steady since the time of Voyager except in the equatorial


Abstract We present a model study of the evolution of the vertical cloud structure and aerosol optical characteristics of the giant storm that erupted in Saturn's atmosphere in September 1990. This

The Great White Spot and disturbances in Saturn's equatorial atmosphere during 1990

A giant storm, the Great White Spot, erupted at the end of September 1990 as a localized, bright cloud system close to Saturn's equator. Its evolution produced a complex planetary disturbance which