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Dunes on Titan observed by Cassini Radar

hal.structure.identifierLunar and Planetary Laboratory [Tucson] [LPL]
hal.structure.identifierDepartment of Geological Sciences [BYU]
dc.contributor.authorRADEBAUGH, J.
hal.structure.identifierJohns Hopkins University Applied Physics Laboratory [Laurel, MD] [APL]
dc.contributor.authorLORENZ, R. D.
hal.structure.identifierLunar and Planetary Laboratory [Tucson] [LPL]
dc.contributor.authorLUNINE, J.I.
hal.structure.identifierJet Propulsion Laboratory [JPL]
hal.structure.identifierLaboratoire de Planétologie et Géodynamique [UMR 6112] [LPG]
dc.contributor.authorWALL, S. D.
dc.contributor.authorBOUBIN, G.
dc.contributor.authorREFFET, E.
hal.structure.identifierUS Geological Survey [Flagstaff]
dc.contributor.authorKIRK, R. L.
hal.structure.identifierJet Propulsion Laboratory [JPL]
hal.structure.identifierTherapies Interventionnelles Assistees Par l'Image et la Simulation - U 703 [Thiais]
dc.contributor.authorLOPES, R. M.
hal.structure.identifierProxemy Research Inc
dc.contributor.authorSTOFAN, E. R.
hal.structure.identifierUS Geological Survey [Flagstaff]
hal.structure.identifierUS Geological Survey [Denver]
dc.contributor.authorSODERBLOM, L.
hal.structure.identifierDepartement of Geology
hal.structure.identifierNASA Goddard Institute for Space Studies [GISS]
dc.contributor.authorALLISON, M.
hal.structure.identifierJet Propulsion Laboratory [JPL]
hal.structure.identifierDepartment of Clinical Chemistry
dc.contributor.authorJANSSEN, M.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierLaboratoire de l'intégration, du matériau au système [IMS]
dc.contributor.authorPAILLOU, Philippe
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorCALLAHAN, P.
hal.structure.identifierSLAC National Accelerator Laboratory [SLAC]
dc.contributor.authorSPENCER, C.
dc.contributor.authorTHE CASSINI RADAR TEAM
dc.date.issued2008
dc.identifier.issn0019-1035
dc.description.abstractEnThousands of longitudinal dunes have recently been discovered by the Titan Radar Mapper on the surface of Titan. These are found mainly within ±30° of the equator in optically-, near-infrared-, and radar-dark regions, indicating a strong proportion of organics, and cover well over 5% of Titan's surface. Their longitudinal duneform, interactions with topography, and correlation with other aeolian forms indicate a single, dominant wind direction aligned with the dune axis plus lesser, off-axis or seasonally alternating winds. Global compilations of dune orientations reveal the mean wind direction is dominantly eastwards, with regional and local variations where winds are diverted around topographically high features, such as mountain blocks or broad landforms. Global winds may carry sediments from high latitude regions to equatorial regions, where relatively drier conditions prevail, and the particles are reworked into dunes, perhaps on timescales of thousands to tens of thousands of years. On Titan, adequate sediment supply, sufficient wind, and the absence of sediment carriage and trapping by fluids are the dominant factors in the presence of dunes.
dc.language.isoen
dc.publisherElsevier
dc.subjectTitan
dc.subjectsurfaces
dc.subjectSaturn
dc.subjectsatellites
dc.title.enDunes on Titan observed by Cassini Radar
dc.typeArticle de revue
dc.identifier.doi10.1016/J.ICARUS.2007.10.015
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
bordeaux.journalIcarus
bordeaux.page690-703
bordeaux.volume194
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-00286482
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00286482v1
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