Summary: every 4 jovian planets have unique atmospheres through cloud layers the govern the different types of gases that have the right to condense.


You are watching: Jupiter does not have seasons because it has no appreciable axis tilt.

Sections:Atmospheric Structure and CloudsJovian earth WeatherClimate and Weather ~ above JupiterRelated linksRelated Lessons:Great Red clues PinwheelHappy Landings: A Splash or a Splat?
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Cloud Altitudes

The atmospheric frameworks of the four jovian planets are all rather similar. The primary distinction is the the atmospheres acquire progressively cooler with boosting distance from the Sun. Notification on the diagram the clouds that a particular composition always occur at around the very same temperature. Because that example, the ammonia clouds on both Jupiter and Saturn form at one atmospheric temperature of around 150 K. This happens to be roughly 25 km below the cloud height on Jupiter and also 100 km below the cloud optimal on Saturn.

Each jovian earth has distinct cloud layers, through altitudes dictated by the atmospheric levels at which various gases deserve to condense into liquid droplets or solid flakes.

JUPITER and also SATURN CLOUD LAYERS:Ammonia clouds (150° K)Ammonium Hydrosulfide clouds (200° K)Water clouds (270° K)

Since Saturn"s atmosphere is chillier than Jupiter"s at any details altitude, the miscellaneous cloud layers occur deeper within Saturn"s atmosphere.

URANUS and NEPTUNE CLOUD LAYERS:Methane clouds (75 K)

Methane can condense in the an extremely cold top troposphere that Uranus and of Neptune, however not in the warmer troposphere the Jupiter or Saturn.


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JOVIAN world WEATHER


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Jupiter"s Weather Phenomena

Jupiter"s weather phenomena (clouds, winds storms) space by much the strongest and most active of the jovian planets, however weather is discovered on all four.

Like Jupiter, Saturn has actually stripes of alternate color and also wind direction, despite in more subdued colors. Also though Saturn has an axis tilt comparable to the of Earth, we don"t check out the dramatic periods we might expect. Part weather transforms have to be observed, but Saturn"s internal heat keeps temperatures about the exact same year-round and planet-wide.


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Bands in Saturn"s Atmosphere
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Uranus

Uranus is basically tipped ~ above its next so us would intend it to walk through excessive seasonal transforms during the 84-year orbit approximately the Sun. When Voyager 2 flew previous in 1986, Uranus"s north hemisphere to be facing nearly directly towards the Sun, and its southerly hemisphere was in perpetual darkness. Photographs revealed basically no clouds and also no banded structures favor those uncovered on the various other jovian planets. More recent observations show storms in Uranus"s atmosphere. The storms may be brewing due to the fact that of the an altering seasons together the southerly hemisphere sees sunshine for the first time in decades.


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Neptune(click come enlarge)

Neptune"s environment is banded, and has a high-pressure storm, referred to as the Great Dark Spot, the is comparable to Jupiter"s great Red Spot. The an excellent Dark point out disappeared in 1994, however was replaced with a similar storm soon after. Choose Saturn, Neptune has actually an axis tilt similar to Earth"s but it has reasonably little seasonal adjust because that its internal heat. The heat produced in Neptune"s internal is exit uniformly and also keeps the temperature around the same year-round and planet-wide.


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CLIMATE and also WEATHER top top JUPITER


Jupiter"s most famous feature is its great Red Spot, i beg your pardon is clearly shows in Jupiter"s southern hemisphere. The good Red clues is an ext than twice as large as Earth.

Jupiter has actually planet-wide circulation cells comparable to those ~ above Earth. Solar heat reasons equatorial air come expand and fall towards the equator. The Coriolis effect splits the big equator-to-pole circulation cells into smaller cells. Jupiter"s great size and also fast rotation do the Coriolis effect very strong. Instead of being separation into simply three smaller cells encircling every hemisphere, as on Earth, Jupiter"s circulation cells split into many alternating bands of rising and falling air. This bands of alternative color space dependent top top the chemical composition within each band, giving Jupiter a distinctly striped appearance.

Jupiter"s climate is steady and also most most likely unchanging due to the fact that it has actually no appreciable axis tilt and, therefore, no seasons. Solar heater alone could leave the poles relatively cool, yet internal heat keeps the earth uniformly warm.


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RELATED LINKSJupiter setting Images at snucongo.orgThe Juno new Frontiers Mission official Homepage


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