1. Centre for Atmospheric Science, Department of Chemistry; University of Cambridge; Cambridge UK
2. Atmospheric Chemistry Modelling Support Unit, National Environment Research Council Centres for Atmospheric Sciences; University of Cambridge; Cambridge UK
3. Atmospheric Chemistry Modeling Group; Harvard University; Cambridge Massachusetts USA
4. Institute of Environmental Physics; University of Bremen; Bremen Germany
5. School of Environmental Sciences; University of East Anglia; Norwich UK
6. School of Chemistry; University of Leeds; Leeds UK
7. Department of Chemistry; University of Leicester; Leicester UK
8. Institut fuer Physik der Atmosphaere; Deutsches Zentrum fuer Luft- und Raumfahrt; Oberpfaffenhofen Germany
9. NASA Ames Research Center; Moffett Field California USA
10. NASA Langley Research Center; Hampton Virginia USA
11. Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
12. Facility of Airborne Atmospheric Measurements; Cranfield UK
13. Department of Chemistry; University of York; York UK