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dc.contributor.authorBaars, H.
dc.contributor.authorAnsmann, A.
dc.contributor.authorAlthausen, D.
dc.contributor.authorEngelmann, R.
dc.contributor.authorHeese, B.
dc.contributor.authorMueller, D.
dc.contributor.authorArtaxo, P.
dc.contributor.authorPaixao, M.
dc.contributor.authorPauliquevis, T.
dc.contributor.authorSouza, R.
dc.date.accessioned2013-07-01T11:17:04Z
dc.date.available2013-07-01T11:17:04Z
dc.date.issued2012-11-03
dc.identifier.citationBaars , H , Ansmann , A , Althausen , D , Engelmann , R , Heese , B , Mueller , D , Artaxo , P , Paixao , M , Pauliquevis , T & Souza , R 2012 , ' Aerosol profiling with lidar in the Amazon Basin during the wet and dry season ' , Journal of Geophysical Research: Atmospheres , vol. 117 , no. D21 , D21201 . https://doi.org/10.1029/2012JD018338
dc.identifier.issn2169-897X
dc.identifier.otherPURE: 1978318
dc.identifier.otherPURE UUID: 67f057f9-a4ef-42a7-b6c4-193048822e3d
dc.identifier.otherWOS: 000310686000001
dc.identifier.otherScopus: 84868661771
dc.identifier.otherORCID: /0000-0002-0203-7654/work/68611669
dc.identifier.urihttp://hdl.handle.net/2299/10982
dc.description.abstractFor the first time, multiwavelength polarization Raman lidar observations of optical and microphysical particle properties over the Amazon Basin are presented. The fully automated advanced Raman lidar was deployed 60 km north of Manaus, Brazil (2.5 degrees S, 60 degrees W) in the Amazon rain forest from January to November 2008. The measurements thus cover both the wet season (Dec-June) and the dry or burning season (July-Nov). Two cases studies of young and aged smoke plumes are discussed in terms of spectrally resolved optical properties (355, 532, and 1064 nm) and further lidar products such as particle effective radius and single-scattering albedo. These measurement examples confirm that biomass burning aerosols show a broad spectrum of optical, microphysical, and chemical properties. The statistical analysis of the entire measurement period revealed strong differences between the pristine wet and the polluted dry season. African smoke and dust advection frequently interrupt the pristine phases during the wet season. Compared to pristine wet season conditions, the particle scattering coefficients in the lowermost 2 km of the atmosphere were found to be enhanced, on average, by a factor of 4 during periods of African aerosol intrusion and by a factor of 6 during the dry (burning) season. Under pristine conditions, the particle extinction coefficients and optical depth for 532 nm wavelength were frequently as low as 10-30 Mm(-1) anden
dc.format.extent16
dc.language.isoeng
dc.relation.ispartofJournal of Geophysical Research: Atmospheres
dc.subjectFREE TROPOSPHERE
dc.subjectFOREST-FIRE SMOKE
dc.subjectMICROPHYSICAL PARTICLE PARAMETERS
dc.subjectRAIN-FOREST
dc.subjectSIZE DISTRIBUTION
dc.subjectOPTICAL-PROPERTIES
dc.subjectBACKSCATTER LIDAR
dc.subjectPHYSICAL-PROPERTIES
dc.subjectRAMAN-LIDAR
dc.subjectSUBMICROMETER AEROSOL
dc.titleAerosol profiling with lidar in the Amazon Basin during the wet and dry seasonen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Atmospheric and Climate Physics Research
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1029/2012JD018338
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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