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dc.contributor.authorSeifert, P.
dc.contributor.authorAnsmann, A.
dc.contributor.authorMattis, I.
dc.contributor.authorWandinger, U.
dc.contributor.authorTesche, Matthias
dc.contributor.authorEngelmann, R.
dc.contributor.authorMueller, D.
dc.contributor.authorPerez, C.
dc.contributor.authorHaustein, K.
dc.date.accessioned2013-08-01T07:48:08Z
dc.date.available2013-08-01T07:48:08Z
dc.date.issued2010-10-19
dc.identifier.citationSeifert , P , Ansmann , A , Mattis , I , Wandinger , U , Tesche , M , Engelmann , R , Mueller , D , Perez , C & Haustein , K 2010 , ' Saharan dust and heterogeneous ice formation : Eleven years of cloud observations at a central European EARLINET site ' Journal of Geophysical Research: Atmospheres , vol. 115 , D20201 . https://doi.org/10.1029/2009JD013222
dc.identifier.issn2169-897X
dc.identifier.otherPURE: 1978850
dc.identifier.otherPURE UUID: 42c327a6-2edf-4f9f-bcbb-6918ede3dc75
dc.identifier.otherWOS: 000283545900003
dc.identifier.otherScopus: 77958578581
dc.identifier.urihttp://hdl.handle.net/2299/11246
dc.description.abstractMore than 2300 observed cloud layers were analyzed to investigate the impact of aged Saharan dust on heterogeneous ice formation. The observations were performed with a polarization/Raman lidar at the European Aerosol Research Lidar Network site of Leipzig, Germany (51.3 degrees N, 12.4 degrees E) from February 1997 to June 2008. The statistical analysis is based on lidar-derived information on cloud phase (liquid water, mixed phase, ice cloud) and cloud top height, cloud top temperature, and vertical profiles of dust mass concentration calculated with the Dust Regional Atmospheric Modeling system. Compared to dust-free air masses, a significantly higher amount of ice-containing clouds (25%-30% more) was observed for cloud top temperatures from -10 degrees C to -20 degrees C in air masses that contained mineral dust. The midlatitude lidar study is compared with our SAMUM lidar study of tropical stratiform clouds at Cape Verde in the winter of 2008. The comparison reveals that heterogeneous ice formation is much stronger over central Europe and starts at higher temperatures than over the tropical station. Possible reasons for the large difference are discussed.en
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofJournal of Geophysical Research: Atmospheres
dc.subjectATMOSPHERE
dc.subjectMIXED-PHASE CLOUDS
dc.subjectNUCLEATION
dc.subjectTRANSPORT
dc.subjectBACKSCATTER
dc.subjectDESERT DUST
dc.subjectEXTINCTION
dc.subjectLIDAR OBSERVATIONS
dc.subjectBIOLOGICAL PARTICLES
dc.subjectMINERAL DUST
dc.titleSaharan dust and heterogeneous ice formation : Eleven years of cloud observations at a central European EARLINET siteen
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
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
rioxxterms.versionofrecordhttps://doi.org/10.1029/2009JD013222
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


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