Wintertime Overnight NOx Removal in a Southeastern United States Coal‐fired Power Plant Plume: A Model for Understanding Winter NOx Processing and its Implications

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dc.contributor.authorFibiger, Dorothy L.
dc.contributor.authorMcDuffie, Erin E.
dc.contributor.authorDubé, William P.
dc.contributor.authorAikin, Kenneth C.
dc.contributor.authorLopez‐Hilfiker, Felipe D.
dc.contributor.authorLee, Ben H.
dc.contributor.authorGreen, Jamie R.
dc.contributor.authorFiddler, Marc N.
dc.contributor.authorHolloway, John S.
dc.contributor.authorEbben, Carlena
dc.contributor.authorSparks, Tamara L.
dc.contributor.authorWooldridge, Paul
dc.contributor.authorWeinheimer, Andrew J.
dc.contributor.authorMontzka, Denise D.
dc.contributor.authorApel, Eric C.
dc.contributor.authorHornbrook, Rebecca S.
dc.contributor.authorHills, Alan J.
dc.contributor.authorBlake, Nicola J.
dc.contributor.authorDiGangi, Josh P
dc.contributor.authorWolfe, Glenn M.
dc.contributor.authorBililign, Solomon
dc.contributor.authorCohen, Ronald C.
dc.contributor.authorThornton, Joel A.
dc.contributor.authorBrown, Steven S.
dc.date.accessioned2020-09-21T15:25:41Z
dc.date.available2020-09-21T15:25:41Z
dc.date.issued2018-01-05
dc.description.abstractNitric oxide (NO) is emitted in large quantities from coal‐burning power plants. During the day, the plumes from these sources are efficiently mixed into the boundary layer, while at night, they may remain concentrated due to limited vertical mixing during which they undergo horizontal fanning. At night, the degree to which NO is converted to HNO₃ and therefore unable to participate in next‐day ozone (O₃) formation depends on the mixing rate of the plume, the composition of power plant emissions, and the composition of the background atmosphere. In this study, we use observed plume intercepts from the Wintertime INvestigation of Transport, Emissions and Reactivity campaign to test sensitivity of overnight NOx removal to the N₂O₅ loss rate constant, plume mixing rate, background O₃, and background levels of volatile organic compounds using a 2‐D box model of power plant plume transport and chemistry. The factor that exerted the greatest control over NOx removal was the loss rate constant of N₂O₅. At the lowest observed N₂O₅ loss rate constant, no other combination of conditions converts more than 10% of the initial NOx to HNO₃. The other factors did not influence NOx removal to the same degree.fen_US
dc.description.sponsorshipThe authors would like to thank theNSF-NCAR Research Aircraft Facility staff. Data are available from NCAR at http://data.eol.ucar.edu/master_list/?project=WINTER. The model algorithm used was developed in IGOR Pro and is available at https://esrl.noaa.gov/csd/groups/csd7/measurements/2015win-ter/pubs/. Funding for Fibiger was sup-ported by NSF award 1433358en_US
dc.description.urihttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017JD027768en_US
dc.format.extent14 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2ikak-xvu9
dc.identifier.citationFibiger, D. L., McDuffie, E. E., Dubé, W. P.,Aikin, K. C., Lopez-Hilfiker, F. D., Lee, B.H et al., (2018). Winter time overnight NOx removal in a Southeastern United States coal-firedpower plant plume: A model for under-standing winter NOx processing and its implications. Journal of Geophysical Research: Atmospheres, 123, 1412–1425.https://doi.org/10.1002/2017JD027768en_US
dc.identifier.urihttps://doi.org/10.1002/2017JD027768
dc.identifier.urihttp://hdl.handle.net/11603/19692
dc.language.isoen_USen_US
dc.publisherAGU Pubicationen_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.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.titleWintertime Overnight NOx Removal in a Southeastern United States Coal‐fired Power Plant Plume: A Model for Understanding Winter NOx Processing and its Implicationsen_US
dc.typeTexten_US

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