1. IEK‐8: Troposphäre Forschungszentrum Jülich GmbH Jülich Germany
2. Now at Institut für Atmosphäre und Klima ETH Zürich Zürich Switzerland
3. Rhenish Institute for Environmental Research University of Cologne Cologne Germany
4. School of Earth, Atmospheric and Environmental Sciences University of Manchester Manchester UK
5. National Centre for Atmospheric Science University of Manchester Manchester UK
6. Centre for Ecology and Hydrology Penicuik UK
7. Paul Scherrer Institute Villigen Switzerland
8. Department of Physics Helsinki University Helsinki Finland
9. Aerodyne Research Inc. Billerica Massachusetts USA
10. Finnish Meteorological Institute Helsinki Finland
11. Now at IAG University of São Paulo São Paulo Brazil
12. Now at EC Joint Research Centre, Institution Environment and Sustainability Ispra Italy
13. School of Physics National University of Ireland Galway Galway Ireland
14. Cooperative Institute for Research in Environmental Sciences and Department of Chemistry and Biochemistry University of Colorado Boulder Boulder Colorado USA
15. Department of Physics Lund University Lund Sweden
16. Laboratoire de Météorologie Physique CNRS‐Université Blaise Pascal Clermont Ferrand France
17. Department of Applied Physics University of Eastern Finland Kuopio Finland
18. Leibniz Institute for Tropospheric Research Leipzig Germany
19. McKetta Department of Chemical Engineering University of Texas at Austin Austin Texas USA
20. Now at Institute of Meteorology and Climate Research Karlsruhe Institute of Technology Karlsruhe Germany
21. Energy Research Centre of the Netherlands Petten Netherlands
22. Department of Chemical Engineering University of Patras Patras Greece