Cassini ISS spots flooded playa on Titan, Paper in Press |
Cassini ISS spots flooded playa on Titan, Paper in Press |
Dec 12 2008, 07:02 PM
Post
#1
|
|
Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Our paper on Titan's lakes is finally in press:
Turtle, E. P., J. E. Perry, A. S. McEwen, A. D. DelGenio, J. Barbara, R. A. West, D. D. Dawson, and C. C. Porco (2008), Cassini Imaging of Titan's High-Latitude Lakes, Clouds, and South-Polar Surface Changes, Geophys. Res. Lett., doi:10.1029/2008GL036186, in press. The paper describes Cassini ISS observations acquired of Titan's high-latitude regions. The size and distribution of dark features observed in these regions were measured and these features were compared with RADAR observations of these regions. In the north polar region, nearly all of the dark features observed by ISS corresponded to a "lake" observed by RADAR. In the south, only a few lakes were seen by RADAR, far fewer than the dark spots observed by ISS, suggesting either that the lakes are thinner in the south, or that in the 3-year span between the ISS and RADAR observations, many of the lakes dried up. ISS also observed a temporal change in the south polar region. A dark region was found near 80 South, 120 West in observations acquired in June 2005, but was not seen 11 months earlier (during the post-SOI T0 non-targeted encounter). In the paper, we suggest that the region was coated in a dark albedo material, likely liquid methane/ethane, during a rainstorm in early October 2004. This extensive storm system was observed by ground-based observers and ISS. Coincidentally, RADAR will be observing this feature next week during the T49 flyby. Given the evaporation rate expected on Titan, RADAR is unlikely to find a lake still at this location, but information on the geologic setting of the flooding event will be useful. I would expect playa fed by a system of washes. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
Dec 12 2008, 08:07 PM
Post
#2
|
|
Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
That's wonderful. Thanks for the summary and great news about the upcoming RADAR coverage. I'll be trotting off to my local university library for a look at that paper for sure.
|
|
|
Dec 12 2008, 08:28 PM
Post
#3
|
|
Member Group: Members Posts: 401 Joined: 5-January 07 From: Manchester England Member No.: 1563 |
Very cool!
-------------------- |
|
|
Dec 12 2008, 09:14 PM
Post
#4
|
|
Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Congrats!
-------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
|
|
|
Dec 12 2008, 10:45 PM
Post
#5
|
|
Member Group: Members Posts: 131 Joined: 30-August 06 From: Moscow, Idaho Member No.: 1086 |
Paper is posted on GRL website at: http://www.agu.org/journals/pip/gl/2008GL036186-pip.pdf
- VIMS Jason |
|
|
Dec 15 2008, 09:50 AM
Post
#6
|
|
Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Well, I tried. At Bangor University: 'subscription expired', "try the public library". No joy there either. If no-one here can help I suppose I'll have to drive to Liverpool.
|
|
|
Dec 16 2008, 10:11 AM
Post
#7
|
|
Member Group: Members Posts: 131 Joined: 30-August 06 From: Moscow, Idaho Member No.: 1086 |
ISS Jason is a coauthor -- maybe he could post a copy on his website? I think that's consistent with the usual copyright regulations.
- Jason |
|
|
Dec 16 2008, 08:47 PM
Post
#8
|
|
Member Group: Members Posts: 688 Joined: 20-April 05 From: Sweden Member No.: 273 |
That depends on the journal. However Jason could definitely email single copies to people who ask for them.
|
|
|
Dec 16 2008, 08:50 PM
Post
#9
|
|
Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
I would have no problem emailing people the article. Just send me a pm.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
Lo-Fi Version | Time is now: 4th May 2024 - 04:26 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |