A pervasive role for biomass burning in tropical high ozone/low water structures

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dc.contributor.authorAnderson, Daniel C.
dc.contributor.authorNicely, Julie M.
dc.contributor.authorSalawitch, Ross J.
dc.contributor.authorCanty, Timothy P.
dc.contributor.authorDickerson, Russell R.
dc.contributor.authorHanisco, Thomas F.
dc.contributor.authorWolfe, Glenn
dc.contributor.authorApel, Eric C.
dc.contributor.authorAtlas, Elliot
dc.contributor.authorBannan, Thomas
dc.contributor.authorBauguitte, Stephane
dc.contributor.authorBlake, Nicola J.
dc.contributor.authorBresch, James F.
dc.contributor.authorCampos, Teresa L.
dc.contributor.authorCarpenter, Lucy J.
dc.contributor.authorCohen, Mark D.
dc.contributor.authorEvans, Matthew
dc.contributor.authorFernandez, Rafael P.
dc.contributor.authorKahn, Brian H.
dc.contributor.authorKinnison, Douglas E.
dc.contributor.authorHall, Samuel R.
dc.contributor.authorHarris, Neil R.P.
dc.contributor.authorHornbrook, Rebecca S.
dc.contributor.authorLamarque, Jean-Francois
dc.contributor.authorBreton, Michael Le
dc.contributor.authorLee, James D.
dc.contributor.authorPercival, Carl
dc.contributor.authorPfister, Leonhard
dc.contributor.authorPierce, R. Bradley
dc.contributor.authorRiemer, Daniel D.
dc.contributor.authorSaiz-Lopez, Alfonso
dc.contributor.authorStunder, Barbara J.B.
dc.contributor.authorThompson, Anne M.
dc.contributor.authorUllmann, Kirk
dc.contributor.authorVaughan, Adam
dc.contributor.authorWeinheimer, Andrew J.
dc.date.accessioned2020-09-17T18:56:02Z
dc.date.available2020-09-17T18:56:02Z
dc.date.issued2016-01-13
dc.description.abstractAir parcels with mixing ratios of high O₃ and low H₂O (HOLW) are common features in the tropical western Pacific (TWP) mid-troposphere (300–700 hPa). Here, using data collected during aircraft sampling of the TWP in winter 2014, we find strong, positive correlations of O₃ with multiple biomass burning tracers in these HOLW structures. Ozone levels in these structures are about a factor of three larger than background. Models, satellite data and aircraft observations are used to show fires in tropical Africa and Southeast Asia are the dominant source of high O₃ and that low H₂O results from large-scale descent within the tropical troposphere. Previous explanations that attribute HOLW structures to transport from the stratosphere or mid-latitude troposphere are inconsistent with our observations. This study suggest a larger role for biomass burning in the radiative forcing of climate in the remote TWP than is commonly appreciated.en_US
dc.description.sponsorshipWe thank L. Pan for coordinating the CONTRAST flights and her constructive criticism of an early version of the manuscript; S. Schauffler, V. Donets and R. Lueb for collecting and analysing AWAS samples; T. Robinson and O. Shieh for providing meteorology forecasts in the field; and the pilots and crews of the CAST BAe-146 and CONTRAST Gulfstream V aircrafts for their dedication and professionalism. CAST was funded by the Natural Environment Research Council; CONTRAST was funded by the National Science Foundation. Research at the Jet Propulsion Laboratory, California Institute of Technology, is performed under contract with the National Aeronautics and Space Administration (NASA). A number of the US-based investigators also benefitted from the support of NASA as well as the National Oceanic and Atmospheric Administration. The views, opinions, and findings contained in this report are those of the author(s) and should not be construed as an official National Oceanic and Atmospheric Administration or US Government position, policy or decision. We would like to acknowledge high-performance computing support from Yellowstone (ark:/85065/d7wd3xhc) provided by NCAR's Computational and Information Systems Laboratory. NCAR is sponsored by the National Science Foundation.en_US
dc.description.urihttps://www.nature.com/articles/ncomms10267en_US
dc.format.extent13 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2s5gu-o8tf
dc.identifier.citationAnderson, D., Nicely, J., Salawitch, R. et al. A pervasive role for biomass burning in tropical high ozone/low water structures. Nat Commun 7, 10267 (2016). https://doi.org/10.1038/ncomms10267en_US
dc.identifier.urihttps://doi.org/10.1038/ncomms10267
dc.identifier.urihttp://hdl.handle.net/11603/19681
dc.language.isoen_USen_US
dc.publisherNature Researchen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Physics Department
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.*
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleA pervasive role for biomass burning in tropical high ozone/low water structuresen_US
dc.typeTexten_US

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