Ozone tropospheric and stratospheric trends (1995-2011) at six ground-based FTIR stations (28°N to 79°N)

(1) Belgian Institute for Space Aeronomy, Brussels, Belgium (corinne.vigouroux@aeronomie.be), (2) Institut d’Astrophysique et de Geophysique, University of Liege, Liege, Belgium, (3) Institute for Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany, (4) Izana Atmospheric Research Centre (IARC), Agencia Estatal de Meteorologia (AEMET), Spain, (5) Chalmers University of Technology, Goteborg, Sweden, (6) Institute of Environmental Physics, University of Bremen, Bremen, Germany, (7) National Center for Atmospheric Research (NCAR), Boulder, USA