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Precipitation-induced surface brightenings seen on Titan by Cassini VIMS and ISS

Barnes, J. W. and Buratti, B.J. and Turtle, E. P. and Bow, J. and Dalba, P.A. and Perry, J. and Brown, R. H. and Rodriguez, S. and Le Mouélic, S. and Baines, K. and Sotin, C. and Lorenz, R. D. and Malaska, M. J. and McCord, T. B. and Clark, R. N. and Jaumann, R. and Hayne, P. O. and Nicholson, P. D. and Soderblom, J. M. and Soderblom, L.A. (2013) Precipitation-induced surface brightenings seen on Titan by Cassini VIMS and ISS. Planetary Science, 2 (1), pp. 1-22. Springer. doi: 10.1186/2191-2521-2-1. ISSN 2191-2521.

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Official URL: http://www.planetary-science.com/content/2/1/1


Observations from Cassini VIMS and ISS show localized but extensive surface brightenings in the wake of the 2010 September cloudburst. Four separate areas, all at similar latitude, show similar changes: Yalaing Terra, Hetpet Regio, Concordia Regio, and Adiri. Our analysis shows a general pattern to the time-sequence of surface changes: after the cloudburst the areas darken for months, then brighten for a year before reverting to their original spectrum. From the rapid reversion timescale we infer that the process driving the brightening owes to a fine-grained solidified surface layer. The specific chemical composition of such solid layer remains unknown. Evaporative cooling of wetted terrain may play a role in the generation of the layer, or it may result from a physical grain-sorting process.

Item URL in elib:https://elib.dlr.de/84029/
Document Type:Article
Title:Precipitation-induced surface brightenings seen on Titan by Cassini VIMS and ISS
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Barnes, J. W. Uni. of IdahoUNSPECIFIED
Buratti, B.J.Jet Propulsion Laboratory, Pasadena, CAUNSPECIFIED
Turtle, E. P.The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USAUNSPECIFIED
Bow, J.University of IdahoUNSPECIFIED
Perry, J.Department of Planetary Sciences, University of Arizona, Tucson, CAUNSPECIFIED
Brown, R. H.Lunar and Planetary Lab, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Rodriguez, S.Laboratoire AIM, FranceUNSPECIFIED
Le Mouélic, S.University of Nantes, 44072 Nantes Cedex 3, FranceUNSPECIFIED
Baines, K.Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI 53706, USAUNSPECIFIED
Sotin, C.Jet Propulsion Laboratory, Caltech, 4800 Oak Grove Drive, Pasadena, CA 91109, USAUNSPECIFIED
Lorenz, R. D.Johns Hopkins University, Applied Physics Lab., Laurel, MD 20723, USAUNSPECIFIED
McCord, T. B.HIGP/SOEST, University of Hawaii, Winthrop, WA, USAUNSPECIFIED
Clark, R. N.US Geological Survey, Denver, CO, USAUNSPECIFIED
Jaumann, R. ralf.jaumann (at) dlr.deUNSPECIFIED
Hayne, P. O.CaltechUNSPECIFIED
Nicholson, P. D.Department of Astronomy, Cornell University, Ithaca, NY, USAUNSPECIFIED
Soderblom, J. M.Department of Planetary Sciences, University of Arizona, Tucson, AZ 85721, USAUNSPECIFIED
Soderblom, L.A.United States Geological Survey, Flagstaff, AZUNSPECIFIED
Date:14 January 2013
Journal or Publication Title:Planetary Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1186/2191-2521-2-1
Page Range:pp. 1-22
Keywords:Titan; Atmosphere; Titan; Hydrology
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Voigt, Joana
Deposited On:19 Sep 2013 11:40
Last Modified:19 Sep 2013 11:40

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