The Tropospheric Ozone Assessment Report (TOAR): A community-wide effort to quantify tropospheric ozone in a rapidly changing world

Owen Roger Cooper, University of Colorado at Boulder, Boulder, CO, United States, Martin Schultz, Foschungszentrum Juelich, Juelich, Germany, Elena Paoletti, Institute for Sustainable Plant Protection, National Research Council, Florence, Italy, Ian Edward Galbally, CSIRO Marine and Atmospheric Research, Aspendale, Australia, Manish Kumar Naja, Aryabhatta Res Inst of Obs Sci, Nainital, India, David Walter Tarasick, Environment Canada Toronto, Downsview, ON, Canada, Mathew J Evans, University of York, Department of Chemistry, York, United Kingdom and Anne M Thompson, NASA Goddard Space Flight Center, Greenbelt, MD, United States