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dc.contributor.authorBEDDOWS DAVIDen_GB
dc.contributor.authorDALL'OSTO MANUELen_GB
dc.contributor.authorHARRISON ROY M.en_GB
dc.contributor.authorKULMALA M.en_GB
dc.contributor.authorASMI ARIen_GB
dc.contributor.authorWIEDENSOHLER ALFREDen_GB
dc.contributor.authorLAJ PAOLOen_GB
dc.contributor.authorFJAERAA ANN MARIen_GB
dc.contributor.authorSELLEGRI K.en_GB
dc.contributor.authorBIRMILI WOLFRAMen_GB
dc.contributor.authorBUKOWIECKI N.en_GB
dc.contributor.authorWEINGARTNER Een_GB
dc.contributor.authorBALTENSPERGER URSen_GB
dc.contributor.authorZDIMAL V.en_GB
dc.contributor.authorZIKOVA N.en_GB
dc.contributor.authorPUTAUD JEAN-PHILIPPEen_GB
dc.contributor.authorMARINONI A.en_GB
dc.contributor.authorTUNVED PETERen_GB
dc.contributor.authorHANSSON H. C.en_GB
dc.contributor.authorFIEBIG MARKUSen_GB
dc.contributor.authorKIVEKAS N.en_GB
dc.contributor.authorSWIETLICKI ERIKen_GB
dc.contributor.authorLIHAVAINEN Hen_GB
dc.contributor.authorASMI E.en_GB
dc.contributor.authorULEVICIUS VIDMANTASen_GB
dc.contributor.authorAALTO P.en_GB
dc.contributor.authorMIHALOPOULOS NIKOLAOSen_GB
dc.contributor.authorKALIVITIS N.en_GB
dc.contributor.authorKALAPOV I.en_GB
dc.contributor.authorKISS GYULAen_GB
dc.contributor.authorDE LEEUW GERITTen_GB
dc.contributor.authorHENZING B.en_GB
dc.contributor.authorO'DOWD C.en_GB
dc.contributor.authorJENNINGS S. G.en_GB
dc.contributor.authorFLENTJE HARALDen_GB
dc.contributor.authorMEINHARDT FRANKen_GB
dc.contributor.authorRIES L.en_GB
dc.contributor.authorDENIER VAN DER GON H.A.C.en_GB
dc.contributor.authorVISSCHEDIJK A.J.H.en_GB
dc.identifier.citationATMOSPHERIC CHEMISTRY AND PHYSICS vol. 14 no. 8 p. 4327-4348en_GB
dc.identifier.issn1680-7316 (online)en_GB
dc.description.abstractCluster analysis of particle number size distributions from background sites across Europe is presented. This generated a total of nine clusters of particle size distributions which could be further combined into two main groups, namely: a south-to-north category (four clusters) and a west-to-east category (five clusters). The first group was identified as most frequently being detected inside and around northern Germany and neighbouring countries, showing clear evidence of local afternoon nucleation and growth events that could be linked to movement of air masses from south to north arriving ultimately at the Arctic contributing to Arctic haze. The second group of particle size spectra proved to have narrower size distributions and collectively showed a dependence of modal diameter upon the longitude of the site (west to east) at which they were most frequently detected. These clusters indicated regional nucleation (at the coastal sites) growing to larger modes further inland. The apparent growth rate of the modal diameter was around 0.6–0.9 nm h−1. Four specific air mass back-trajectories were successively taken as case studies to examine in real time the evolution of aerosol size distributions across Europe. ~While aerosol growth processes can be observed as aerosol traverses Europe, the processes are often obscured by the addition of aerosol by emissions en route. This study revealed that some of the 24 stations exhibit more complex behaviour than others, especially when impacted by local sources or a variety of different air masses. Overall, the aerosol size distribution clustering analysis greatly simplifies the complex data set and allows a description of aerosol aging processes, which reflects the longer-term average development of particle number size distributions as air masses advect across Europe.en_GB
dc.description.sponsorshipJRC.C.5-Air and Climateen_GB
dc.titleVariations in tropospheric submicron particle size distributions across the European continent 2008–2009en_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.5194/acp-14-4327-2014 (online)en_GB
JRC Directorate:Energy, Transport and Climate

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