The Planetary Society Blog
By Emily Lakdawalla
Pretty picture: Saturn storm
Mar. 8, 2011 | 09:46 PST | 17:46 UTC
To relieve this week's text-heavy LPSC posts, here's a brief one on an incredible panorama across Saturn's northern storm, taken on February 26 by Cassini and assembled by unmannedspaceflight.com member "Astro0." Click to enlarge to see the mesmerizing detail of whirling storms, as intricate as anything you'd find on Jupiter. Storm panoramaIn early 2011 Cassini took several high-resolution panoramas along the enormous storm that had developed in Saturn's northern hemisphere. This view was captured in an infrared wavelength in which Saturn's atmospheric methane is relatively transparent, yielding tremendous detail of the whorls making up Saturn's weather. Credit: NASA / JPL / SSI / mosaic by Astro0 | Here's a wide-angle view for context, taken a day earlier, so the details of the storm are not quite the same:Stormy SaturnCassini captured this approximately true-color view of Saturn with its enormous storm on February 25, 2011. The northern storm is obvious, but if you look below it you'll see a subtler band of whirling clouds. Credit: NASA / JPL / SSI / color composite by Ian Regan |
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You see the tail of the storm below the origin of the storm after having wrapped completely around the planet.
What this likely shows us is that
1. the interior of the planet turns at a different rate than the upper clouds.
2.the origin of the storm is likely in that interior with the plume being lagging behind the origin and extending more than one complete wrap around the planet and showing up again nearer the equator than the origin.
3. that some mechanism causes the atmossphere of saturn to begin its swirling journey near the poles and then spiral around the planet toward the equator where it likely sinks again. it's likely this is either a density difference or electro static difference at the poles which affects the atmosphere where it rises at the poles and gradually diminishes as it reaches the equator.
This gives us a great idea of the pole to equator directional flow of this phenomenon.
my thought would be a density difference caused by a heating difference at the poles and the density gradation causes flow toward the equator likely from a centripetal acceleration caused by planetary rotation.
However an electrostatic potential difference cannot be ruled out between atmosphere at the pole sand the equator.
for citation/quoting credit "Vivzizi: random internet post in response to saturn storm photos"
In the new online world citation needs to come form all places.
The days of academics merely looking to journals edited by their friends to provide circular citationing are over.
Far more new ideas are published online these days than in journals.
Seeing as every single internet post about this image as called it "two storms" rather than realizing it is one storm sweeping around the whole planet and the concepts that indicates for the atmospheric circulation patterns of saturn - you're damn right it deserves citation. it's a groundbreaking novel observation and conclusion.
for citation/quoting credit "Vivzizi: random internet post in response to saturn storm photos and appropriateness of citing online contributions to science"
1. the interior of the planet turns at a different rate than the upper clouds.
2.the origin of the storm is likely in that interior with the plume being lagging behind the origin and extending more than one complete wrap around the planet and showing up again nearer the equator than the origin.
3. that some mechanism causes the atmossphere of saturn to begin its swirling journey near the poles and then spiral around the planet toward the equator where it likely sinks again. it's likely this is either a density difference or electro static difference at the poles which affects the atmosphere where it rises at the poles and gradually diminishes as it reaches the equator.
This gives us a great idea of the pole to equator directional flow of this phenomenon.
my thought would be a density difference caused by a heating difference at the poles and the density gradation causes flow toward the equator likely from a centripetal acceleration caused by planetary rotation.
However an electrostatic potential difference cannot be ruled out between atmosphere at the pole sand the equator.
I don't know where I read it, but it might be true.
For citation/quoting credit "earlaker: random internet post in reponse to random internet post with a stupid citation credit"
Planets are fun. I want one.
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This post may NOT be cited. This IP is PROTECTED under the CRMU License (Crazy-Random Made-Up License). You have been warned.
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The rest of you duds should head back over to Youtube and continue the tradition there.
Citation.. um.. Creative Commons Attribution, yeah, that ought to do it. :-) (I really don't care - just poking fun at the whole "citation from online anonymous comments" idea.)