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Published March 28, 2008 | Supplemental Material
Journal Article Open

Dynamics of Saturn's South Polar Vortex

Abstract

The camera onboard the Cassini spacecraft has allowed us to observe many of Saturn's cloud features. We present observations of Saturn's south polar vortex (SPV) showing that it shares some properties with terrestrial hurricanes: cyclonic circulation, warm central region (the eye) surrounded by a ring of high clouds (the eye wall), and convective clouds outside the eye. The polar location and the absence of an ocean are major differences. It also shares properties with the polar vortices on Venus, such as polar location, cyclonic circulation, warm center, and long lifetime, but the Venus vortices have cold collars and are not associated with convective clouds. The SPV's combination of properties is unique among vortices in the solar system.

Additional Information

© 2008 American Association for the Advancement of Science. Received 30 November 2007; accepted 25 January 2008. This research was supported by the NASA Cassini Project.

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August 22, 2023
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