Constraining ozone-precursor responsiveness using ambient measurements

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dc.citation.firstpage1005en_US
dc.citation.journalTitleJournal of Geophysical Research: Atmospheresen_US
dc.citation.lastpage1019en_US
dc.citation.volumeNumber118en_US
dc.contributor.authorDigar, Antaraen_US
dc.contributor.authorCohan, Daniel S.en_US
dc.contributor.authorXiao, Xueen_US
dc.contributor.authorFoley, Kristen M.en_US
dc.contributor.authorKoo, Bonyoungen_US
dc.contributor.authorYarwood, Gregen_US
dc.date.accessioned2013-07-12T19:27:30Zen_US
dc.date.available2013-07-12T19:27:30Zen_US
dc.date.issued2013en_US
dc.description.abstractThis study develops probabilistic estimates of ozone (O3) sensitivities to precursor emissions by incorporating uncertainties in photochemical modeling and evaluating model performance based on ground-level observations of O3 and oxides of nitrogen (NOx). Uncertainties in model formulations and input parameters are jointly considered to identify factors that strongly influence O3 concentrations and sensitivities in the Dallas-Fort Worth region in Texas. Weightings based on a Bayesian inference technique and screenings based on model performance and statistical tests of significance are used to generate probabilistic representation of O3 response to emissions and model input parameters. Adjusted (observation-constrained) results favor simulations using the sixth version of the carbon bond chemical mechanism (CB6) and scaled-up emissions of NOx, dampening the overall sensitivity of O3 to NOx and increasing the sensitivity of O3 to volatile organic compounds in the study region. This approach of using observations to adjust and constrain model simulations can provide probabilistic representations of pollutant responsiveness to emission controls that complement the results obtained from deterministic air-quality modeling.en_US
dc.embargo.termsnoneen_US
dc.identifier.citationDigar, Antara, Cohan, Daniel S., Xiao, Xue, et al.. "Constraining ozone-precursor responsiveness using ambient measurements." <i>Journal of Geophysical Research: Atmospheres,</i> 118, (2013) American Geophysical Union: 1005-1019. http://dx.doi.org/10.1029/2012JD018100.en_US
dc.identifier.doihttp://dx.doi.org/10.1029/2012JD018100en_US
dc.identifier.urihttps://hdl.handle.net/1911/71542en_US
dc.language.isoengen_US
dc.publisherAmerican Geophysical Unionen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleConstraining ozone-precursor responsiveness using ambient measurementsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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