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dc.contributor.authorWILD Oliveren_GB
dc.contributor.authorFIORE A. M.en_GB
dc.contributor.authorSHINDELL D. T.en_GB
dc.contributor.authorDOHERTY R. M.en_GB
dc.contributor.authorCOLLINS W.j.en_GB
dc.contributor.authorDENTENER Franciscusen_GB
dc.contributor.authorSCHULTZ M.g.en_GB
dc.contributor.authorGONG S.en_GB
dc.contributor.authorMACKENZIE I. A.en_GB
dc.contributor.authorZENG Guangen_GB
dc.contributor.authorHESS Peteren_GB
dc.contributor.authorDUNCAN B. N.en_GB
dc.contributor.authorBERGMANN D. J.en_GB
dc.contributor.authorSZOPA S.en_GB
dc.contributor.authorJONSON J.e.en_GB
dc.contributor.authorKEATING T. J.en_GB
dc.contributor.authorZUBER A.en_GB
dc.date.accessioned2012-04-17T19:15:32Z-
dc.date.available2012-04-06en_GB
dc.date.available2012-04-17T19:15:32Z-
dc.date.created2012-02-27en_GB
dc.date.issued2012en_GB
dc.date.submitted2011-10-17en_GB
dc.identifier.citationATMOSPHERIC CHEMISTRY AND PHYSICS vol. 12 p. 2037–2054en_GB
dc.identifier.issn1680-7316en_GB
dc.identifier.urihttp://publications.jrc.ec.europa.eu/repository/handle/JRC67206-
dc.description.abstractThis study describes a simple parameterization to estimate regionally averaged changes in surface ozone due to past or future changes in anthropogenic precursor emissions based on results from 14 global chemistry transport models. The method 5 successfully reproduces the results of full simulations with these models. For a given emission scenario it provides the ensemble mean surface ozone change, a regional source attribution for each change, and an estimate of the associated uncertainty represented by the variation between models. Using the Representative Concentration Pathway (RCP) emission scenarios as an example, we show how regional surface ozone is likely to respond to emission changes by 2050 and how changes in precursor emissions and atmospheric methane contribute to this. Surface ozone changes are substantially smaller than expected with the SRES A1B, A2 and B2 scenarios, reflecting the assumptions of more stringent precursor emission controls under the RCP scenarios. We find an average difference of around 5 ppb between the outlying RCP 2.6 and RCP 8.5 scenarios, about 75 % of which can be attributed to differences in methane abundance. The study reveals the increasing importance of limiting atmospheric methane growth as emissions of other precursors are controlled, but highlights differences in modelled ozone responses to methane changes of as much as a factor of two, indicating that this remains a major uncertainty in current models.en_GB
dc.description.sponsorshipJRC.H.2-Air and Climateen_GB
dc.format.mediumOnlineen_GB
dc.languageENGen_GB
dc.publisherCOPERNICUS GESELLSCHAFT MBHen_GB
dc.relation.ispartofseriesJRC67206en_GB
dc.titleModelling future changes in surface ozone: a parameterized approachen_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.5194/acp-12-2037-2012en_GB
JRC Directorate:Sustainable Resources

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