Big storm on Saturn |
Big storm on Saturn |
May 4 2011, 02:11 AM
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#121
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Another comparison image of Cassini IR and Enhanced Visible compared to an Earth-based image taken at about the same time by Christopher Go:
http://www.flickr.com/photos/31678681@N07/5685274823/ (All images taken at approximately the same time, so the placement of the storm is at center left in the full disk Earth-based view.) -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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May 10 2011, 04:15 AM
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#122
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
May 5 image of big Saturn storm taken by Cassini. This was kinda ugly to process. I ended up doing many overlays/multiplications of the higher-res CB2 layer to enhance detail and cloud structure.
Cruising throught the PVOL database, in the Earth based images of the storm it is become more and more difficult to see the central upwelling - the turbulent cloud deck has wrapped around Saturn to make almost a double-white band.. In the Cassini visible it is also really difficult to discern in visible wavelengths. The center of the storm is still best lit up "bright" (high cloud deck) by MT3 and MT2 filtered images. In visible, it is only barely darker than it's surroundings. -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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May 19 2011, 08:18 PM
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#123
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Press release on Saturn storm. It has been observed by VIMS and CIRS as well and is doing an impressive job of punching up through the atmospheric layers and dredging up all sorts of stuff as it rearranges Saturn's normally calm belts and zones.
http://www.jpl.nasa.gov/news/news.cfm?rele...ml&rst=3004 -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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May 22 2011, 11:43 AM
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#124
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Planetary Photojournal showing false-color VIMS image of Big Storm on Saturn and a neat explanation of what it found:
http://photojournal.jpl.nasa.gov/catalog/PIA14119 Spoiler alert: Big honkin particles and ammonia pulled up by the storm, and high small particles and ammonia in neat structures just south of the storm! -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Jun 18 2011, 03:38 AM
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#125
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Roughly correlated views of the storm on Saturn from Cassini and ground-based observation on June 13-14, 2011.
Interesting how the uplifted ares in Saturn (bright swirls in Methanovision) are dark in the ground-based RGB image. Use the bright cloud edge and the "pinched" area to the E to help correlate the views. Much more details on flickr: . -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Jul 12 2011, 04:26 AM
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#126
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
7-frame CB2 images of Saturn rotation on July 9, 2011 (here) lined up and mosaiced (issues with terminator) to make a strip of the Saturn storm clouds:
Click for full res to check out the cool-o swirly patterns. -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Jul 17 2011, 03:53 PM
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#127
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Uh-oh. I think the storm is starting to snuff out. Most recent July 13, 2011 Methanovision composite [MT3,MT2,CB2] shows a much, much smaller upper level swirl. Maybe without a major updraft source the turbulence will work itself out over the next few months?
(The little guy is up in the upper right corner with a slight greenish tint.] -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Nov 18 2011, 03:02 AM
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#128
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Planetary Photojournal release of series of natural color images of the the storm as PIA14905.
(for some images they use the CB2 image in place of red to approximate natural color) -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Sep 4 2013, 07:29 AM
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#129
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
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Sep 4 2013, 02:50 PM
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#130
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
....and accompanied by a Planetary Photojournal image release: http://photojournal.jpl.nasa.gov/catalog/PIA17044
-------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Sep 4 2013, 06:11 PM
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#131
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Very cool science. For those who don't know, Saturn's weather approximates that of Jupiter except its scale height is much larger because the local acceleration to gravity is about 40% of Jupiter's. Therefore, layers in Saturn's clouds are vertically extended and it's harder to see the diversity of layers.
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