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Article: A synoptic climatology of tropospheric ozone episodes in Sydney, Australia

TitleA synoptic climatology of tropospheric ozone episodes in Sydney, Australia
Authors
KeywordsCluster Analysis
Ozone
Principal Component Analysis
Sydney
Synoptic Climatology
Issue Date2006
PublisherRoyal Meteorological Society. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/4735
Citation
International Journal Of Climatology, 2006, v. 26 n. 12, p. 1635-1649 How to Cite?
AbstractConcentrations of tropospheric ozone often exceed Australian air quality goals in Sydney during summer. However, features in the occurrence of ozone in Sydney are yet to be fully explained. Meteorological conditions associated with ozone episodes in Sydney are caused by complex interactions between synoptic and meso-scale processes. This paper discusses the meteorological influences behind ozone pollution episodes in Sydney. A synoptic climatology of ozone episodes in Sydney was generated using multivariate statistical techniques, including principal component analysis (PCA) and a two-stage cluster analysis, to classify days into meteorologically homogeneous synoptic categories. Surface and upper air meteorological data for warm months (Oct-Mar) over a 10-year period were used as input into the statistical analyses. Eleven synoptic categories were identified in Sydney during the warm season and ozone concentrations associated with each of the synoptic categories were investigated. One synoptic category was found to be associated almost exclusively with high pollution concentrations. High ozone concentrations were found to be associated with a high-pressure system located in the middle to eastern Tasman Sea producing light northwesterly gradient winds, an afternoon sea breeze, high afternoon temperatures, a shallow mixing height at the coast and warming aloft during the day. Over 90% of all days exceeding current air quality goals for ozone in Sydney fell within the synoptic category associated with the highest ozone concentrations. It is envisaged that results from this research will be useful to Australian regulatory bodies from both a forecast point of view and for the siting of future ozone precursor sources in Sydney and surrounding regions. Copyright © 2006 Royal Meteorological Society.
Persistent Identifierhttp://hdl.handle.net/10722/157881
ISSN
2015 Impact Factor: 3.609
2015 SCImago Journal Rankings: 2.026
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHart, Men_US
dc.contributor.authorDe Dear, Ren_US
dc.contributor.authorHyde, Ren_US
dc.date.accessioned2012-08-08T08:56:07Z-
dc.date.available2012-08-08T08:56:07Z-
dc.date.issued2006en_US
dc.identifier.citationInternational Journal Of Climatology, 2006, v. 26 n. 12, p. 1635-1649en_US
dc.identifier.issn0899-8418en_US
dc.identifier.urihttp://hdl.handle.net/10722/157881-
dc.description.abstractConcentrations of tropospheric ozone often exceed Australian air quality goals in Sydney during summer. However, features in the occurrence of ozone in Sydney are yet to be fully explained. Meteorological conditions associated with ozone episodes in Sydney are caused by complex interactions between synoptic and meso-scale processes. This paper discusses the meteorological influences behind ozone pollution episodes in Sydney. A synoptic climatology of ozone episodes in Sydney was generated using multivariate statistical techniques, including principal component analysis (PCA) and a two-stage cluster analysis, to classify days into meteorologically homogeneous synoptic categories. Surface and upper air meteorological data for warm months (Oct-Mar) over a 10-year period were used as input into the statistical analyses. Eleven synoptic categories were identified in Sydney during the warm season and ozone concentrations associated with each of the synoptic categories were investigated. One synoptic category was found to be associated almost exclusively with high pollution concentrations. High ozone concentrations were found to be associated with a high-pressure system located in the middle to eastern Tasman Sea producing light northwesterly gradient winds, an afternoon sea breeze, high afternoon temperatures, a shallow mixing height at the coast and warming aloft during the day. Over 90% of all days exceeding current air quality goals for ozone in Sydney fell within the synoptic category associated with the highest ozone concentrations. It is envisaged that results from this research will be useful to Australian regulatory bodies from both a forecast point of view and for the siting of future ozone precursor sources in Sydney and surrounding regions. Copyright © 2006 Royal Meteorological Society.en_US
dc.languageengen_US
dc.publisherRoyal Meteorological Society. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/4735en_US
dc.relation.ispartofInternational Journal of Climatologyen_US
dc.subjectCluster Analysisen_US
dc.subjectOzoneen_US
dc.subjectPrincipal Component Analysisen_US
dc.subjectSydneyen_US
dc.subjectSynoptic Climatologyen_US
dc.titleA synoptic climatology of tropospheric ozone episodes in Sydney, Australiaen_US
dc.typeArticleen_US
dc.identifier.emailHart, M:mhart@hku.hken_US
dc.identifier.authorityHart, M=rp00645en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/joc.1332en_US
dc.identifier.scopuseid_2-s2.0-33750300008en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33750300008&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume26en_US
dc.identifier.issue12en_US
dc.identifier.spage1635en_US
dc.identifier.epage1649en_US
dc.identifier.isiWOS:000241478000006-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridHart, M=15044213100en_US
dc.identifier.scopusauthoridde Dear, R=7004481673en_US
dc.identifier.scopusauthoridHyde, R=54888322500en_US

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