Regional trend analysis of surface ozone observations from monitoring networks in eastern North America, Europe and East Asia

Kai-Lan Chang, CIRES, U. of Colorado, Boulder, United States, Irina V Petropavlovskikh, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Owen Roger Cooper, CIRES, U. of Colorado/NOAA Chemical Sciences Laboratory, Boulder, United States, Martin Schultz, Foschungszentrum Juelich, Juelich, Germany and Tao Wang, The Hong Kong Polytechnic University, Department of Civil and Environmental Engineering, Hong Kong, China