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Old 13-03-2009, 01:41 PM
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Quark (Trevor)
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Join Date: Apr 2008
Location: Broken Hill NSW Australia
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Top stuff Dave,

Nice detail and colours.
Defiantly some cloud structure in the EZn. There have been several long lived cloud structure in the EZn over the last few months. These are interesting features. It was thought that storm structures, that is with associated SED's (Saturn Electrostatic Discharge), that is lightning, could only form in the special regions at 35 Sth & 35 Nth. This was directly related to the wind speeds in the equatorial zone, which were thought to be to high for SED type storms to develop. At 35 Sth & Nth the wind speeds drop off just enough for storm structures to survive.

A very interesting point regarding this, was that the Voyager probes detected SED's emanating from the Equatorial zone. Voyager did not image physical evidence to support that though.

Since Cassini has been at Saturn I believe that it has not detected SED's from the EZ. That said these quite bright long lived cloud structures continue to appear in the EZn, most interesting.

Regards
Trevor
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