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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]
dc.contributor.authorDOBRIJEVIC, M.
hal.structure.identifierService d'aéronomie [SA]
hal.structure.identifierLaboratoire de Chimie Physique D'Orsay [LCPO]
dc.contributor.authorCARRASCO, Nathalie
hal.structure.identifierService d'aéronomie [SA]
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorHÉBRARD, Eric
hal.structure.identifierLaboratoire de Chimie Physique D'Orsay [LCPO]
dc.contributor.authorPERNOT, P.
dc.date.created2008
dc.date.issued2008
dc.identifier.issn0032-0633
dc.description.abstractEnWe show that photochemical models of Titan's atmosphere can give rise to bimodal distributions in the abundances of some major compounds, like C2H2 and C2H4. Sensitivity analysis enabled us to identify the causes and conditions of this bimodality. We propose several methods to control this behavior in photochemical models. In particular, we point out the importance of two key reactions and the needs for a critical evaluation of the kinetic data. We also show that the abundances of some compounds are hypersensitive to the ratio [CH4]/[H], suggesting that a time-dependent variation of this ratio might lead to a real bistability in the high atmosphere of Titan.
dc.language.isoen
dc.publisherElsevier
dc.subject.enBimodality
dc.subject.enBistability
dc.subject.enSensitivity analysis
dc.subject.enPhotochemistry
dc.subject.enTitan
dc.title.enEpistemic bimodality and kinetic hypersensitivity in photochemical models of Titan's atmosphere
dc.typeArticle de revue
dc.identifier.doi10.1016/j.pss.2008.05.016
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.journalPlanetary and Space Science
bordeaux.page1630-1643
bordeaux.volume56
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-00319819
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00319819v1
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