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Investigating ozone episodes in Portugal: a wavelet-based approach

2016Journal article Open access
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dc.contributor.authorMonteiro, Alexandra
dc.contributor.authorGouveia, Sónia
dc.contributor.authorScotto, Manuel González
dc.contributor.authorLopes, José Fortes
dc.contributor.authorGama, Carla
dc.contributor.authorFeliciano, Manuel
dc.contributor.authorMiranda, Ana Isabel
dc.date.accessioned2018-01-25T10:00:00Z
dc.date.accessioned2018-01-30T16:39:25Z
dc.date.available2018-01-25T10:00:00Z
dc.date.available2018-01-30T16:39:25Z
dc.date.issued2016
dc.description.abstractDuring the summer season, ozone concentrations regularly exceed the legislation limits in the North of Portugal, namely at Douro Norte monitoring station. The origin of such ozone episodes has been widely reported in several studies although uncertainties regarding its origin still remain. This work intends to investigate how the ozone concentrations measured at the Douro Norte nearest stations, located at west and east directions, are related to those measured at Douro Norte by means of coherence and phase transformations methods. The episodes were selected according to the magnitude of the hourly ozone peaks and the occurrence of exceedances of the threshold value at least in two sites. The results point out that 60 % of the selected episodes highlight significant dependence between Douro Norte station and the other two monitoring sites, with different phase signal and a delay range from 2 to 4 h.pt_PT
dc.description.sponsorshipThe authors wish to thank the financial support of the Comiss˜ao de Coordenac¸ ˜ao e Desenvolvimento Regional do Norte (CCDR-N). Thanks are extended to the Portuguese Foundation for Science and Technology for the financial support through the Project MAPLIA (PTDC/AAG-MAA/4077/2012), and the PhD grant of Carla Gama (SFRH/BD/87468/2012) and the Pos-Doc grant of S. Gouveia (SFRH/-BPD/87037/2012), and CIDMA/UA project PEst- OE/MAT/UI4106/2014 (Centro de Investigac¸ ˜ao e Desenvolvimento em Matem´atica e Aplicac¸ ˜oes, CIDMA/UA, Aveiro, www.cidma.mat. ua.pt), and IEETA/UA project PEst-OE/EEI/-UI0127/2014 (Instituto de Engenharia Electr´onica e Telem´atica de Aveiro, IEETA/UA, Aveiro, www.ieeta.pt).
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMonteiro, A.; Gouveia, S.; Scotto, M.G.; Lopes, J.; Gama, C.; Feliciano, Manuel; Miranda, A.I. (2016). Investigating ozone episodes in Portugal: a wavelet-based approach. Air Quality, Atmosphere and Health. ISSN 1873-9318. 9, p. 775-783en_EN
dc.identifier.doi10.1007/s11869-015-0379-7pt_PT
dc.identifier.issn1873-9318
dc.identifier.urihttp://hdl.handle.net/10198/15316
dc.language.isoeng
dc.peerreviewedyespt_PT
dc.relationASSESSMENT OF LONG-RANGE TRANSPORT OF MINERAL DUST FROM NORTH AFRICA, ITS COMPOSITION AND DEPOSITION OVER THE OCEAN
dc.relationMULTIVARIATE OPTIMAL ALARM SYSTEMS FOR ONLINE PREDICTION OF CATASTROPHIC CARDIOVASCULAR EPISODES
dc.subjectMonitoring stationsen_EN
dc.subjectNorth Portugalen_EN
dc.subjectOzone episodesen_EN
dc.subjectWavelet transformationen_EN
dc.titleInvestigating ozone episodes in Portugal: a wavelet-based approachen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleASSESSMENT OF LONG-RANGE TRANSPORT OF MINERAL DUST FROM NORTH AFRICA, ITS COMPOSITION AND DEPOSITION OVER THE OCEAN
oaire.awardTitleMULTIVARIATE OPTIMAL ALARM SYSTEMS FOR ONLINE PREDICTION OF CATASTROPHIC CARDIOVASCULAR EPISODES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PTDC%2FAAG-MAA%2F4077%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F87468%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F87037%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/PEst-OE%2FMAT%2FUI4106%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/PEst-OE%2FEEI%2FUI0127%2F2014/PT
oaire.fundingStreamCOMPETE
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameFeliciano
person.givenNameManuel
person.identifier.ciencia-id2D11-7230-702B
person.identifier.orcid0000-0002-3147-4511
person.identifier.scopus-author-id6603358480
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticlept_PT
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