Cooper, OR, et al. 2007. Evidence for a recurring eastern North America upper tropospheric ozone maximum during summer. J Geophysical Research, 112, D23304, doi:10.1029/2007JD008710.

Note: Owen Cooper (Cooperative Institute for Research in Environmental Sciences, University of Colorado, and also at Earth System Research Laboratory, NOAA, both in Boulder, Colorado, USA) is the lead author on this paper. Another 28 researchers and technical support people (represented by et al.) contributed and are co-authors:

USA (22): AM Thompson (Department of Meteorology, Pennsylvania State University, University Park, Pennsylvania); JC Witte (Science Systems and Applications, Inc., NASA Goddard Space Flight Center, Greenbelt, Maryland); MK Dubey (Los Alamos National Laboratory, Los Alamos, New Mexico); MJ Newchurch (Atmospheric Science Department, University of Alabama in Huntsville, Huntsville, Alabama); L Kalnajs (Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, Colorado); T Leblanc & IS McDermid (Table Mountain Facility, Jet Propulsion Laboratory, California Institute of Technology, Wrightwood, California); GA Morris (Department of Physics and Astronomy, Valparaiso University, Valparaiso, Indiana); F Schmidlin (Wallops Flight Facility, NASA Goddard Space Flight Center, Wallops Island, Virginia); SJ Oltmans, M Trainer, BJ Johnson, RW Portmann, D Wolfe, J Meagher & FC Fehsenfeld (Earth System Research Laboratory, NOAA, Boulder, Colorado); TJ Keating (Office of Air and Radiation, United States Environmental Protection Agency, Washington, DC); RA Van Curen (Atmospheric Processes Research Section, Research Division, California Air Resources Board, Sacramento, California); K Minschwaner (Department of Physics, New Mexico Institute of Mining and Technology, Socorro, New Mexico); B Lefer & B Rappenglück (Geosciences Department, University of Houston, Houston, Texas); and E Joseph (Department of Physics and Astronomy, Howard University, Washington, DC).

Canada (3): DW Tarasick (Experimental Studies Research Division, Meteorological Service of Canada, Environment Canada, Downsview, Ontario); Gerry Forbes, Meteorological Service of Canada, Sable Island, Nova Scotia); and T Carey-Smith (Environment Canada, Downsview, Ontario).

Norway (2): A Stohl & S Eckhardt (Norwegian Institute for Air Research, Kjeller).

Germany (1): J Lelieveld (Max Plank Institute for Chemistry, Mainz).