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Near-infrared spectral mapping of Titan's mountains and channels

Barnes, Jason W. and Radebaugh, Jani and Brown, Robert H. and Wall, Steve and Soderblom, Laurence and Lunine, Jonathan and Burr, Devon and Sotin, Christophe and Le Mouélic, Stephane and Rodriguez, Sebastien and Buratti, Bonnie J. and Clark, Roger and Baines, Kevin H. and Jaumann, Ralf and Nicholson, Phillip D. and Kirk, Randolph L. and Lopes, Rosaly and Lorenz, Ralph D. and Mitchell, Karl and Wood, Charles A. (2007) Near-infrared spectral mapping of Titan's mountains and channels. Journal of Geophysical Research, 112, E11006. AGU. DOI: 10.1029/2007JE002932

Full text not available from this repository.

Abstract

We investigate the spectral reflectance properties of channels and mountain ranges on Titan using data from Cassini's Visual and Infrared Mapping Spectrometer (VIMS) obtained during the T9 encounter (26 December 2005). We identify the location of channels and mountains using synthetic aperture radar maps obtained from Cassini's RADAR instrument during the T13 (30 April 2006) flyby. Channels are evident even in VIMS imaging with spatial resolution coarser than the channel size. The channels share spectral characteristics with Titan's dark blue terrain (e.g., the Huygens landing site) that is consistent with an enhancement in water ice content relative to the rest of Titan. We use this fact to measure widths of ∼1 km for the largest channels. Comparison of the data sets shows that in our study area within the equatorial bright spectral unit east of Xanadu, mountains are darker and bluer than surrounding smooth terrain. These results are consistent with the equatorial bright terrain possessing a veneer of material that is thinner in the regions where there are mountains and streambeds that have likely undergone more recent and extensive erosion. We suggest a model for the geographic relationship of the dark blue, dark brown, and equatorial bright spectral units based on our findings.

Item URL in elib:https://elib.dlr.de/52904/
Document Type:Article
Title:Near-infrared spectral mapping of Titan's mountains and channels
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Barnes, Jason W.NASA Ames Research Center, Moffett Field, California, USA; Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USAUNSPECIFIED
Radebaugh, JaniDepartment of Geological Sciences, Brigham Young University, Provo, Utah, USAUNSPECIFIED
Brown, Robert H.Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USAUNSPECIFIED
Wall, SteveJet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USAUNSPECIFIED
Soderblom, LaurenceU.S. Geological Survey, Flagstaff, Arizona, USAUNSPECIFIED
Lunine, JonathanLunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USAUNSPECIFIED
Burr, DevonCarl Sagan Center, SETI Institute, Mountain View, California, USAUNSPECIFIED
Sotin, ChristopheLaboratoire de Planétologie et Géodynamique, UMR CNRS, Universitéde Nantes, Nantes, FranceUNSPECIFIED
Le Mouélic, StephaneLaboratoire de Planétologie et Géodynamique, UMR CNRS, Universitéde Nantes, Nantes, FranceUNSPECIFIED
Rodriguez, SebastienLaboratoire AIM, Centre d'Ètude de Saclay, DAPNIA/Sap, Centre de l'Orme des Merisiers, Gif sur Yvette, FranceUNSPECIFIED
Buratti, Bonnie J.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USAUNSPECIFIED
Clark, RogerU.S. Geological Survey, Denver, Colorado, USAUNSPECIFIED
Baines, Kevin H.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USAUNSPECIFIED
Jaumann, RalfUNSPECIFIEDUNSPECIFIED
Nicholson, Phillip D.Astronomy Department, Cornell University, Ithaca, New York, USAUNSPECIFIED
Kirk, Randolph L.U.S. Geological Survey, Flagstaff, Arizona, USAUNSPECIFIED
Lopes, RosalyJet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USAUNSPECIFIED
Lorenz, Ralph D.Space Department, JHU Applied Physics Laboratory, Laurel, Maryland, USAUNSPECIFIED
Mitchell, KarlJet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USAUNSPECIFIED
Wood, Charles A.Planetary Science Institute, Tucson, Arizona, USAUNSPECIFIED
Date:2007
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:112
DOI :10.1029/2007JE002932
Page Range:E11006
Publisher:AGU
Status:Published
Keywords:Titan, VIMS, Cassini
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Pieth, Susanne
Deposited On:16 Jan 2008
Last Modified:27 Apr 2009 14:39

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