TY - JOUR A1 - Chevalier, A. A1 - Gheusi, F. A1 - Delmas, R. A1 - Ordóñez, C. A1 - Sarrat, C. A1 - Zbinden, R. A1 - Thouret, V. A1 - Athier, G. A1 - Cousin, J.-M. T1 - Influence of altitude on ozone levels and variability in the lower troposphere: a ground-based study for western Europe over the period 2001–2004 JO - Atmos. Chem. Phys. J1 - ACP VL - 7 IS - 16 SP - 4311 EP - 4326 Y1 - 2007/08/22 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/7/4311/2007/ L1 - http://www.atmos-chem-phys.net/7/4311/2007/acp-7-4311-2007.pdf DO - 10.5194/acp-7-4311-2007 ER -