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Related Experiment Video

Updated: Jul 12, 2026

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 16, 2013

Temperatures, winds, and composition in the saturnian system.

F M Flasar¹, R K Achterberg, B J Conrath

¹National Aeronautics and Space Administration (NASA)/Goddard Space Flight Center, Code 693, Greenbelt, MD 20771, USA. f.m.flasar@nasa.gov

Science (New York, N.Y.)

|December 25, 2004

Summary

Saturn

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Area of Science:

Planetary Science
Atmospheric Science
Astrobiology

Background:

Saturn's stratospheric temperatures suggest equatorial winds decrease with altitude.
Previous studies indicated different altitudes for tracked features, potentially due to temporal changes or measurement discrepancies.
Saturn's south polar stratosphere is warmer than predicted by radiative models.

Purpose of the Study:

To analyze stratospheric temperatures and wind patterns on Saturn.
To investigate the composition and thermal properties of Saturn's atmosphere and rings.
To compare Saturn's properties with those of Jupiter and its moons.

Main Methods:

Analysis of stratospheric temperatures on Saturn.
Interpretation of data from Hubble Space Telescope images.
Comparison of Saturn's atmospheric and ring data with Jovian system data.

Main Results:

Saturn's equatorial winds show a strong decay with altitude.
If wind changes are not temporal, tracked features were at higher altitudes (130 km) than previously thought.
Saturn's south polar stratosphere is anomalously warm.
The C/H ratio on Saturn is seven times solar, double Jupiter's.
Saturn's rings exhibit radial temperature variations down to 100 km.
Phoebe's diurnal temperature variations suggest a porous regolith.

Conclusions:

Saturn's atmospheric dynamics and thermal profile present unique characteristics.
Discrepancies in wind measurements highlight the need for precise altitude determination.
Saturn's composition and ring system display complex thermal behaviors.
Phoebe's surface properties may differ significantly from other Jovian satellites.