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dc.contributor.authorJacob, Daniel James
dc.contributor.authorCrawford, J. H.
dc.contributor.authorMaring, H.
dc.contributor.authorClarke, A. D.
dc.contributor.authorDibb, J. E.
dc.contributor.authorEmmons, L. K.
dc.contributor.authorFerrare, R. A.
dc.contributor.authorHostetler, C. A.
dc.contributor.authorRussell, P. B.
dc.contributor.authorSingh, H. B.
dc.contributor.authorThompson, A. M.
dc.contributor.authorShaw, G. E.
dc.contributor.authorMcCauley, E.
dc.contributor.authorPederson, J. R.
dc.contributor.authorFisher, J. A.
dc.date.accessioned2014-03-20T15:06:40Z
dc.date.issued2010
dc.identifier.citationJacob, Daniel James, J. H. Crawford, H. Maring, A. D. Clarke, J. E. Dibb, L. K. Emmons, R. A. Ferrare, et al. 2010. “The Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) Mission: Design, Execution, and First Results.” Atmospheric Chemistry and Physics 10 (11) (June 14): 5191–5212. doi:10.5194/acp-10-5191-2010. http://dx.doi.org/10.5194/acp-10-5191-2010.en_US
dc.identifier.issn1680-7316en_US
dc.identifier.issn1680-7324en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:11957016
dc.description.abstractThe NASA Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission was conducted in two 3-week deployments based in Alaska (April 2008) and western Canada (June–July 2008). Its goal was to better understand the factors driving current changes in Arctic atmospheric composition and climate, including (1) influx of mid-latitude pollution, (2) boreal forest fires, (3) aerosol radiative forcing, and (4) chemical processes. The June–July deployment was preceded by one week of flights over California (ARCTAS-CARB) focused on (1) improving state emission inventories for greenhouse gases and aerosols, (2) providing observations to test and improve models of ozone and aerosol pollution. ARCTAS involved three aircraft: a DC-8 with a detailed chemical payload, a P-3 with an extensive aerosol and radiometric payload, and a B-200 with aerosol remote sensing instrumentation. The aircraft data augmented satellite observations of Arctic atmospheric composition, in particular from the NASA A-Train. The spring phase (ARCTAS-A) revealed pervasive Asian pollution throughout the Arctic as well as significant European pollution below 2 km. Unusually large Siberian fires in April 2008 caused high concentrations of carbonaceous aerosols and also affected ozone. Satellite observations of BrO column hotspots were found not to be related to Arctic boundary layer events but instead to tropopause depressions, suggesting the presence of elevated inorganic bromine (5–10 pptv) in the lower stratosphere. Fresh fire plumes from Canada and California sampled during the summer phase (ARCTAS-B) indicated low \(NO_x\) emission factors from the fires, rapid conversion of \(NO_x\) to PAN, no significant secondary aerosol production, and no significant ozone enhancements except when mixed with urban pollution.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherEuropean Geosciences Unionen_US
dc.relation.isversionofdoi:10.5194/acp-10-5191-2010en_US
dash.licenseLAA
dc.titleThe Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) Mission: Design, Execution, and First Resultsen_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.available2014-03-20T15:06:40Z
dc.identifier.doi10.5194/acp-10-5191-2010*
dash.authorsorderedfalse
dash.contributor.affiliatedJacob, Daniel
dc.identifier.orcid0000-0002-6373-3100


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