Miffre A., Abou Chacra M., Geffroy S., Rairoux P., Soulhac L., Perkins R.J. Et Frejafon E
Author's personal copy Atmospheric Environment 44 (2010) 1152e1161 Contents lists available at ScienceDirect Atmospheric Environment journal homepage: www.elsevier.com/locate/atmosenv Aerosol load study in urban area by Lidar and numerical model A. Miffre a, M. Abou Chacra a, S. Geffroy a, P. Rairoux a,*, L. Soulhac b, R.J. Perkins b, E. Frejafon c a Université Lyon 1, LASIM, CNRS UMR 5579, F-69622 Villeurbanne cedex, France b Laboratoire de Mécanique des Fluides et d'Acoustique, CNRS UMR 5509 Université de Lyon, Ecole Centrale de Lyon, F-69134 Ecully cedex, France c Institut National de l'Environnement Industriel et des Risques, F-60550 Verneuil en Halatte, France article info abstract Article history: Vertical profiles of particle mass concentration in the urban canopy above the city of Lyon have been Received 1 August 2009 obtained from Lidar measurements of atmospheric backscattering, over a period of three days. The Received in revised form concentrations measured at 50 m above the ground have been compared with the mass concentration of 18 December 2009 PM10 measured by a ground-based sampler located near the Lidar site. At certain times during the Accepted 23 December 2009 measurement campaign, the Lidar concentration measurements at 50 m agree reasonably well with the concentrations at ground level but at other times the differences between the two sets of measurements Keywords: are so great that they cannot be explained by possible uncertainties in the data processing. Even when Urban aerosol fi UBL the Lidar and ground-based measurements coincide, there are signi cant differences between the two PM10 signals.
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