University of Waterloo, Department of Chemistry, 200 University Ave West, Waterloo, ON N2L 3G1 Canada
University of Toronto, Department of Physics, 60 St George Street, Toronto, ON M5S 1A7 Canada
Institut Pierre Simon Laplace, Laboratoire de Meteorologie Dynamique, Ecole Polytechnique, Route departementale 36, Palaiseau, 91128 France
NASA Langley Research Center, Mail Stop 401A, Hampton, VA 23681-3142 United States
University of Waterloo, Department of Chemistry, 200 University Ave West, Waterloo, ON N2L 3G1 Canada ; University of York, Department of Chemistry, Heslington, York, YO10 5DD United Kingdom