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Absorption Ångström exponents of aerosols and light absorbing carbon (LAC) obtained from in situ data in Covilhã, central Portugal

2012Journal article Open access
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dc.contributor.authorMogo, Sandra
dc.contributor.authorCachorro, Victoria
dc.contributor.authorde Frutos, Ángel M
dc.contributor.authorRodrigues, A.
dc.date.accessioned2018-08-23T09:55:05Z
dc.date.available2018-08-23T09:55:05Z
dc.date.issued2012
dc.description.abstractA field campaign was conducted from October 2009 to July 2010 at Covilhã, a small town located in the region of Beira Interior (Portugal) in the interior of the Iberian Peninsula. The ambient light-absorption coefficient, σ(a) (522 nm), obtained from a Particle Soot Absorption Photometer (PSAP), presented a daily mean value of 12.1 Mm⁻¹ (StD = 7.3 Mm⁻¹). The wavelength dependence of aerosol light absorption is investigated through the Ångström parameter, α(a). The α(a) values for the pair of wavelengths 470-660 nm ranged from 0.86 to 1.47 during the period of measurements. The PSAP data were used to infer the mass of light absorbing carbon (LAC) and the daily mean varied from 0.1 to 6.8 μg m⁻³. A detailed study of special events with different aerosol characteristics is carried out and, to support data interpretation, air masses trajectory analysis is performed.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1039/c2em30345kpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/5686
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAbsorptionpt_PT
dc.subjectAerosolspt_PT
dc.subjectAir Pollutantspt_PT
dc.subjectAir Pollutionpt_PT
dc.subjectCarbonpt_PT
dc.subjectEnvironmental Monitoringpt_PT
dc.subjectLightpt_PT
dc.subjectParticle Sizept_PT
dc.subjectPortugalpt_PT
dc.titleAbsorption Ångström exponents of aerosols and light absorbing carbon (LAC) obtained from in situ data in Covilhã, central Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue12pt_PT
oaire.citation.startPage3174pt_PT
oaire.citation.volume14pt_PT
person.familyNameMogo
person.familyNameCachorro
person.familyNamede Frutos
person.givenNameSandra
person.givenNameVictoria
person.givenNameÁngel M
person.identifier340036
person.identifier.ciencia-id1717-63EA-3853
person.identifier.orcid0000-0002-1423-2668
person.identifier.orcid0000-0002-4627-9444
person.identifier.orcid0000-0001-5748-5078
person.identifier.scopus-author-id6508333851
person.identifier.scopus-author-id7004005379
person.identifier.scopus-author-id6603892355
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4c37dfc5-2e33-49f8-b105-5421875a536d
relation.isAuthorOfPublication01969a6d-9e30-47cc-b72a-4ee3be0ad540
relation.isAuthorOfPublication5f7234e6-1637-4781-8edb-1b8a193ae7c0
relation.isAuthorOfPublication.latestForDiscovery5f7234e6-1637-4781-8edb-1b8a193ae7c0

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