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Transient features in a Titan sea

hal.structure.identifierDepartment of Astronomy [Ithaca]
dc.contributor.authorHOFGARTNER, J. D.
hal.structure.identifierDepartment of Astronomy [Ithaca]
dc.contributor.authorHAYES, A. G.
hal.structure.identifierDepartment of Astronomy [Ithaca]
dc.contributor.authorLUNINE, J.I.
hal.structure.identifierDepartment of Electrical Engineering [Stanford]
dc.contributor.authorZEBKER, H.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorSTILES, B. W.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorSOTIN, C.
hal.structure.identifierUniversity of Idaho [Moscow, USA]
dc.contributor.authorBARNES, Jason W.
hal.structure.identifierJohns Hopkins University Applied Physics Laboratory [Laurel, MD] [APL]
dc.contributor.authorTURTLE, E. P.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorBAINES, K. H.
hal.structure.identifierLunar and Planetary Laboratory [Tucson] [LPL]
dc.contributor.authorBROWN, R. H.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorBURATTI, B. J.
hal.structure.identifierUS Geological Survey [Denver]
dc.contributor.authorCLARK, R. N.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorENCRENAZ, P.
hal.structure.identifierAstrogeology Science Center [Flagstaff]
dc.contributor.authorKIRK, R. D.
hal.structure.identifierPLANETO - LATMOS
dc.contributor.authorLE GALL, Alice
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorLOPES, R. M.
hal.structure.identifierJohns Hopkins University Applied Physics Laboratory [Laurel, MD] [APL]
dc.contributor.authorLORENZ, R. D.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorMALASKA, M. J.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorMITCHELL, K. L.
hal.structure.identifierDepartment of Astronomy [Ithaca]
dc.contributor.authorNICHOLSON, P. D.
hal.structure.identifierSSE 2014
dc.contributor.authorPAILLOU, Philippe
hal.structure.identifierDepartment of Geological Sciences [BYU]
dc.contributor.authorRADEBAUGH, J.
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorWALL, S. D.
hal.structure.identifierPlanetary Science Institute [Tucson] [PSI]
dc.contributor.authorWOOD, C.
dc.date.issued2014
dc.identifier.issn1752-0894
dc.description.abstractEnTitan's surface-atmosphere system bears remarkable similarities to Earth's, the most striking being an active, global methane cycle akin to Earth's water cycle1, 2. Like the hydrological cycle of Earth, Titan's seasonal methane cycle is driven by changes in the distribution of solar energy2. The Cassini spacecraft, which arrived at Saturn in 2004 in the midst of northern winter and southern summer, has observed surface changes, including shoreline recession, at Titan's south pole3, 4 and equator5. However, active surface processes have yet to be confirmed in the lakes and seas in Titan's north polar region6, 7, 8. As the 2017 northern summer solstice approaches, the onset of dynamic phenomena in this region is expected6, 7, 9, 10, 11, 12. Here we present the discovery of bright features in recent Cassini RADAR data that appeared in Titan's northern sea, Ligeia Mare, in July 2013 and disappeared in subsequent observations. We suggest that these bright features are best explained by the occurrence of ephemeral phenomena such as surface waves, rising bubbles, and suspended or floating solids. We suggest that our observations are an initial glimpse of dynamic processes that are commencing in the northern lakes and seas as summer nears in the northern hemisphere.
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enTransient features in a Titan sea
dc.typeArticle de revue
dc.identifier.doi10.1038/ngeo2190
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.journalNature Geoscience
bordeaux.page493-496
bordeaux.volume7
bordeaux.peerReviewedoui
hal.identifierhal-01025848
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01025848v1
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