Observation and modeling of the evolution of Texas power plant plumes

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dc.citation.firstpage455en_US
dc.citation.journalTitleAtmospheric Chemistry and Physicsen_US
dc.citation.lastpage468en_US
dc.citation.volumeNumber12en_US
dc.contributor.authorZhou, W.en_US
dc.contributor.authorCohan, D.S.en_US
dc.contributor.authorPinder, R.W.en_US
dc.contributor.authorNeuman, J.A.en_US
dc.contributor.authorHolloway, J.S.en_US
dc.contributor.authorPeischl, J.en_US
dc.contributor.authorRyerson, T.B.en_US
dc.contributor.authorNowak, J.B.en_US
dc.contributor.authorFlocke, F.en_US
dc.contributor.authorZheng, W.G.en_US
dc.date.accessioned2016-02-02T21:22:53Zen_US
dc.date.available2016-02-02T21:22:53Zen_US
dc.date.issued2012en_US
dc.description.abstractDuring the second Texas Air Quality Study 2006 (TexAQS II), a full range of pollutants was measured by aircraft in eastern Texas during successive transects of power plant plumes (PPPs). A regional photochemical model is applied to simulate the physical and chemical evolution of the plumes. The observations reveal that SO2 and NOy were rapidly removed from PPPs on a cloudy day but not on the cloud-free days, indicating efficient aqueous processing of these compounds in clouds. The model reasonably represents observed NOx oxidation and PAN formation in the plumes, but fails to capture the rapid loss of SO2 (0.37 h−1) and NOy (0.24 h−1) in some plumes on the cloudy day. Adjustments to the cloud liquid water content (QC) and the default metal concentrations in the cloud module could explain some of the SO2 loss. However, NOy in the model was insensitive to QC. These findings highlight cloud processing as a major challenge to atmospheric models. Model-based estimates of ozone production efficiency (OPE) in PPPs are 20–50 % lower than observation-based estimates for the cloudy day.en_US
dc.identifier.citationZhou, W., Cohan, D.S., Pinder, R.W., et al.. "Observation and modeling of the evolution of Texas power plant plumes." <i>Atmospheric Chemistry and Physics,</i> 12, (2012) European Geosciences Union: 455-468. http://dx.doi.org/10.5194/acp-12-455-2012.en_US
dc.identifier.doihttp://dx.doi.org/10.5194/acp-12-455-2012en_US
dc.identifier.urihttps://hdl.handle.net/1911/88309en_US
dc.language.isoengen_US
dc.publisherEuropean Geosciences Unionen_US
dc.rightsThis work is distributed under the Creative Commons Attribution 3.0 License.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en_US
dc.titleObservation and modeling of the evolution of Texas power plant plumesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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