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dc.contributor.authorKaaden, N.
dc.contributor.authorMassling, A.
dc.contributor.authorSchladitz, A.
dc.contributor.authorMüller, T.
dc.contributor.authorKandler, K.
dc.contributor.authorSchütz, L.
dc.contributor.authorWeinzierl, B.
dc.contributor.authorPetzold, A.
dc.contributor.authorTesche, Matthias
dc.contributor.authorLeinert, S.
dc.contributor.authorDeutscher, C.
dc.contributor.authorEbert, M.
dc.contributor.authorWeinbruch, S.
dc.contributor.authorWiedensohler, A.
dc.date.accessioned2015-08-12T19:22:35Z
dc.date.available2015-08-12T19:22:35Z
dc.date.issued2009-02-02
dc.identifier.citationKaaden , N , Massling , A , Schladitz , A , Müller , T , Kandler , K , Schütz , L , Weinzierl , B , Petzold , A , Tesche , M , Leinert , S , Deutscher , C , Ebert , M , Weinbruch , S & Wiedensohler , A 2009 , ' State of mixing, shape factor, number size distribution, and hygroscopic growth of the Saharan anthropogenic and mineral dust aerosol at Tinfou, Morocco ' , Tellus Series B-Chemical and Physical Meteorology , vol. 61 , no. 1 , pp. 51-63 . https://doi.org/10.1111/j.1600-0889.2008.00388.x
dc.identifier.issn0280-6509
dc.identifier.otherPURE: 8757874
dc.identifier.otherPURE UUID: 80644018-8d6b-4d49-86ac-5139902807ca
dc.identifier.otherScopus: 58849109889
dc.identifier.urihttp://hdl.handle.net/2299/16232
dc.description.abstractThe Saharan Mineral Dust Experiment (SAMUM) was conducted in May and June 2006 in Tinfou, Morocco. A H-TDMA system and a H-DMA-APS system were used to obtain hygroscopic properties of mineral dust particles at 85% RH. Dynamic shape factors of 1.11, 1.19 and 1.25 were determined for the volume equivalent diameters 720, 840 and 960 nm, respectively. During a dust event, the hydrophobic number fraction of 250 and 350 nm particles increased significantly from 30 and 65% to 53 and 75%, respectively, indicating that mineral dust particles can be as small as 200 nm in diameter. Log-normal functions for mineral dust number size distributions were obtained from total particle number size distributions and fractions of hydrophobic particles. The geometric mean diameter for Saharan dust particles was 715 nm during the dust event and 570 nm for the Saharan background aerosol. Measurements of hygroscopic growth showed that the Saharan aerosol consists of an anthropogenic fraction (predominantly non natural sulphate and carbonaceous particles) and of mineral dust particles. Hygroscopic growth and hysteresis curve measurements of the 'more' hygroscopic particle fraction indicated ammonium sulphate as a main component of the anthropogenic aerosol. Particles larger than 720 nm in diameter were completely hydrophobic meaning that mineral dust particles are not hygroscopic.en
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofTellus Series B-Chemical and Physical Meteorology
dc.subjectAtmospheric Science
dc.titleState of mixing, shape factor, number size distribution, and hygroscopic growth of the Saharan anthropogenic and mineral dust aerosol at Tinfou, Moroccoen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1600-0889.2008.00388.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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