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dc.contributor.authorFischer, E. V.
dc.contributor.authorJacob, Daniel James
dc.contributor.authorYantosca, Robert M.
dc.contributor.authorSulprizio, Melissa Payer
dc.contributor.authorMillet, D. B.
dc.contributor.authorMao, J.
dc.contributor.authorPaulot, F.
dc.contributor.authorSingh, H. B.
dc.contributor.authorRoiger, A.
dc.contributor.authorRies, L.
dc.contributor.authorTalbot, R. W.
dc.contributor.authorDzepina, K.
dc.contributor.authorPandey Deolal, S.
dc.date.accessioned2015-01-22T20:26:50Z
dc.date.issued2014
dc.identifier.citationFischer, E. V., Daniel James Jacob, Robert M. Yantosca, Melissa Payer Sulprizio, D. B. Millet, J. Mao, F. Paulot, et al. 2014. “Atmospheric Peroxyacetyl Nitrate (PAN): A Global Budget and Source Attribution.” Atmospheric Chemistry and Physics 14 (5): 2679–2698.en_US
dc.identifier.issn1680-7324en_US
dc.identifier.issn1680-7316en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:13792758
dc.description.abstractPeroxyacetyl nitrate (PAN) formed in the atmospheric oxidation of non-methane volatile organic compounds (NMVOCs) is the principal tropospheric reservoir for nitrogen oxide radicals \((NO_x = NO + NO_2)\). PAN enables the transport and release of \(NO_x\) to the remote troposphere with major implications for the global distributions of ozone and OH, the main tropospheric oxidants. Simulation of PAN is a challenge for global models because of the dependence of PAN on vertical transport as well as complex and uncertain NMVOC sources and chemistry. Here we use an improved representation of NMVOCs in a global 3-D chemical transport model (GEOS-Chem) and show that it can simulate PAN observations from aircraft campaigns worldwide. The immediate carbonyl precursors for PAN formation include acetaldehyde (44% of the global source), methylglyoxal (30%), acetone (7%), and a suite of other isoprene and terpene oxidation products (19%). A diversity of NMVOC emissions is responsible for PAN formation globally including isoprene (37%) and alkanes (14%). Anthropogenic sources are dominant in the extratropical Northern Hemisphere outside the growing season. Open fires appear to play little role except at high northern latitudes in spring, although results are very sensitive to plume chemistry and plume rise. Lightning \(NO_x\) is the dominant contributor to the observed PAN maximum in the free troposphere over the South Atlantic.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherCopernicus GmbHen_US
dc.relation.isversionofdoi:10.5194/acp-14-2679-2014en_US
dash.licenseLAA
dc.titleAtmospheric Peroxyacetyl Nitrate (PAN): A Global Budget and Source Attributionen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalAtmospheric Chemistry and Physicsen_US
dash.depositing.authorJacob, Daniel James
dc.date.available2015-01-22T20:26:50Z
dc.identifier.doi10.5194/acp-14-2679-2014*
workflow.legacycommentsCreative Commons Attribution License 3.0, can deposit publisher's versionen_US
dash.authorsorderedfalse
dash.contributor.affiliatedSulprizio, Melissa
dash.contributor.affiliatedYantosca, Robert
dash.contributor.affiliatedJacob, Daniel
dc.identifier.orcid0000-0002-6373-3100


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