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Characterization and intercomparison of aerosol absorption photometers: result of two intercomparison workshops [Discussion paper]
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dc.contributor.authorMüller, T.es_ES
dc.contributor.authorHenzing, J. S.es_ES
dc.contributor.authorLeeuw, Gerardus dees_ES
dc.contributor.authorWiedensohler, Alfredes_ES
dc.contributor.authorAlastuey, Andréses_ES
dc.contributor.authorAngelov, H.es_ES
dc.contributor.authorBizjak, M.es_ES
dc.contributor.authorCollaud Coen, Martinees_ES
dc.contributor.authorEngström, J. E.es_ES
dc.contributor.authorGruening, C.es_ES
dc.contributor.authorHillamo, R.es_ES
dc.contributor.authorHoffer, Andrases_ES
dc.contributor.authorImre, K.es_ES
dc.contributor.authorIvanow, P.es_ES
dc.contributor.authorJennings, G.es_ES
dc.contributor.authorSun, Jielun Y.es_ES
dc.contributor.authorKalivitis, Nikoses_ES
dc.contributor.authorKarlsson, H.es_ES
dc.contributor.authorKomppula, M.es_ES
dc.contributor.authorLaj, Paoloes_ES
dc.contributor.authorLi, S.-M.es_ES
dc.contributor.authorLunder, Chrises_ES
dc.contributor.authorMarinoni, Angelaes_ES
dc.contributor.authorMartins dos Santos, S.es_ES
dc.contributor.authorMoerman, Marceles_ES
dc.contributor.authorNowak, A.es_ES
dc.contributor.authorOgren, J. A.es_ES
dc.contributor.authorPetzold, Andreases_ES
dc.contributor.authorPichon, Jean Marc-
dc.contributor.authorRodríguez González, Sergio-
dc.contributor.authorSharma, Sangeeta-
dc.contributor.authorSheridan, P. J.-
dc.contributor.authorTeinilä, K.-
dc.contributor.authorTuch, Thomas-
dc.contributor.authorViana, Mar-
dc.contributor.authorVirkkula, A.-
dc.contributor.authorWeingartner, Ernest-
dc.contributor.authorWilhelm, R.-
dc.contributor.authorWang, Y. Q.-
dc.identifier.citationAtmospheric Measurement Techniques Discussions. 2010, 3, p. 1511–1582es_ES
dc.description.abstractAbsorption photometers for real time application have been available since the 1980s, but the use of filter-based instruments to derive information on aerosol properties (absorption coefficient and black carbon, BC) is still a matter of debate. Several workshops have been conducted to investigate the performance of individual instruments over the intervening years. Two workshops with large sets of aerosol absorption photometers were conducted in 2005 and 2007. The data from these instruments were corrected using existing methods before further analysis. The inter-comparison shows a large variation between the responses to absorbing aerosol particles for different types of instruments. The unit to unit variability between instruments can be up to 30% for Particle Soot Absorption Photometers (PSAPs) and Aethalometers. Multi Angle Absorption Photometers (MAAPs) showed a variability of less than 5%. Reasons for the high variability were identified to be variations in sample flow and spot size. It was observed that different flow rates influence system performance with respect to response to absorption and instrumental noise. Measurements with non absorbing particles showed that the current corrections of a cross sensitivity to particle scattering are not sufficient. Remaining cross sensitivities were found to be a function of the total particle load on the filter. The large variation between the response to absorbing aerosol particles for different types of instruments indicates that current correction functions for absorption photometers are not adequate.es_ES
dc.description.sponsorshipThe work described in this paper was supported by the EU FP6 Integrated Infrastructures Initiatives (I3) project EUSAAR (European Supersites for Atmospheric Aerosol Research, project FP6-026140), with the EU FP6 Network of Excellence ACCENT (Atmospheric Composition Change: A European Network, project GOCE-CT-2004-505337) and the WMO GAW (Global Atmosphere Watch) program.es_ES
dc.publisherEuropean Geosciences Uniones_ES
dc.rightsLicencia CC: Reconocimiento CC BYes_ES
dc.subjectAbsorption photometerses_ES
dc.subjectAerosol propertieses_ES
dc.subjectFotómetros de absorciónes_ES
dc.titleCharacterization and intercomparison of aerosol absorption photometers: result of two intercomparison workshops [Discussion paper]es_ES
Appears in Collections:Artículos científicos 2010-2014

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