Radiative forcing of ozone during a solar-cycle

I. S. A. Isaksen, B. Rognerud, G. Myhre, J. D. Haigh, S. T. Rumbold, K. P. Shine, C. Zerefos, K. Tourpali, and W. Randel University of Oslo, Department of Geosciences, Oslo, Norway Center for International Climate and Environmental Research, Oslo, Norway Imperial College London, Blackett Laboratory, UK University of Reading, Department of Meteorology, UK University of Athens, Faculty of Geology & Geoenvironment, Lab. of Atmospheric Physics and Climatology Athens, Greece Lab. of Atmospheric Environment, Biomedical Research Foundation, Athens, Greece National Observatory of Athens, Greece Aristotle University of Thessaloniki, Laboratory of Atmospheric Physics, Thessaloniki, Greece National Center for Atmospheric Research, Boulder, CO, USA