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dc.contributor.authorLiuzzi, G.
dc.contributor.authorVillanueva, G.L.
dc.contributor.authorViscardy, S.
dc.contributor.authorMège, D.
dc.contributor.authorCrismani, M.M.J.
dc.contributor.authorAoki, S.
dc.contributor.authorGurgurewicz, J.
dc.contributor.authorTesson, P.-A.
dc.contributor.authorMumma, M.J.
dc.contributor.authorSmith, M.D.
dc.contributor.authorFaggi, S.
dc.contributor.authorKofman, V.
dc.contributor.authorKnutsen, E.W.
dc.contributor.authorDaerden, F.
dc.contributor.authorNeary, L.
dc.contributor.authorSchmidt, F.
dc.contributor.authorTrompet, L.
dc.contributor.authorErwin, J.T.
dc.contributor.authorRobert, S.
dc.contributor.authorThomas, I.R.
dc.contributor.authorRistic, B.
dc.contributor.authorBellucci, G.
dc.contributor.authorLopez-Moreno, J.J.
dc.contributor.authorPatel, M.R.
dc.contributor.authorVandaele, A.C.
dc.contributor.editor
dc.date2021
dc.date.accessioned2021-05-04T12:19:22Z
dc.date.available2021-05-04T12:19:22Z
dc.identifier.urihttps://orfeo.kbr.be/handle/internal/7754
dc.descriptionFollowing the recent detection of HCl in the atmosphere of Mars by ExoMars/Trace Gas Orbiter, we present here the first measurement of the 37Cl/35Cl isotopic ratio in the Martian atmosphere using a set of Nadir Occultation for MArs Discovery (NOMAD) observations. We determine an isotopic anomaly of −6 ± 78‰ compared to Earth standard, consistent with the −51‰–−1‰ measured on Mars’ surface by Curiosity. The measured isotopic ratio is also consistent with surface measurements, and suggests that Cl reservoirs may have undergone limited processing since formation in the Solar Nebula. The examination of possible sources and sinks of HCl shows only limited pathways to short‐term efficient Cl fractionation and many plausible reservoirs of “light” Cl.
dc.languageeng
dc.titleProbing the Atmospheric Cl Isotopic Ratio on Mars: Implications for Planetary Evolution and Atmospheric Chemistry
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeExomars NOMAD
dc.subject.freehydrogen chloride
dc.subject.freeisotopic ratio
dc.subject.freeMars
dc.subject.freeplanetary evolution
dc.source.titleGeophysical Research Letters
dc.source.volume48
dc.source.issue9
dc.source.pagee2021GL092650
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2021GL092650


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