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Analyzing early exo-Earths with a coupled atmosphere biogeochemical model

dc.contributor.authorGEBAUER, Stefanie
hal.structure.identifierExtrasolare Planeten und Atmosphären [Berlin]
hal.structure.identifierZentrum für Astronomie und Astrophysik [Berlin] [ZAA]
dc.contributor.authorGRENFELL, John Lee
dc.contributor.authorSTOCK, Joachim
hal.structure.identifierAlfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine [AWI]
dc.contributor.authorLEHMANN, Ralph
dc.contributor.authorGODOLT, Mareike
hal.structure.identifierECLIPSE 2017
dc.contributor.authorVON PARIS, P.
hal.structure.identifierDLR Institut für Planetenforschung
dc.contributor.authorRAUER, Heike
dc.date.issued2017-04
dc.date.conference2017-04-23
dc.description.abstractEnInvestigating Earth-like extrasolar planets with atmospheric models is a central focus in planetary science. Taking the development of Earth as a reference for Earth-like planets we investigate interactions between the atmosphere, planetary surface and organisms. The Great Oxidation Event (GOE) is related to feedbacks between these three. Its origin and controlling mechanisms are not well defined - requiring interdisciplinary, coupled models. We present results from our newly-developed Coupled Atmosphere Biogeochemistry (CAB) model which is unique in the literature. Applying a unique tool (Pathway Analysis Program), ours is the first quantitative analysis of catalytic cycles governing O2 in early Earth's atmosphere near the GOE. Complicated oxidation pathways play a key role in destroying O2 whereas in the upper atmosphere, most O2 is formed abiotically via CO2 photolysis.
dc.language.isoen
dc.title.enAnalyzing early exo-Earths with a coupled atmosphere biogeochemical model
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.page14541
bordeaux.conference.title19th EGU General Assembly, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria., p.14541
bordeaux.countryAT
bordeaux.conference.cityVienne
bordeaux.peerReviewedoui
hal.identifierhal-01523800
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2017-05-28
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01523800v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2017-04&rft.spage=14541&rft.epage=14541&rft.au=GEBAUER,%20Stefanie&GRENFELL,%20John%20Lee&STOCK,%20Joachim&LEHMANN,%20Ralph&GODOLT,%20Mareike&rft.genre=unknown


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