1. Institute of Climate and Atmospheric Science, School of Earth and Environment; University of Leeds; Leeds UK
2. Met Office; Exeter UK
3. Department of Meteorology; University of Reading; Reading UK
4. Department of Meteorology and the Bert Bolin Centre for Climate Research; Stockholm University; Stockholm Sweden
5. National Centre for Atmospheric Science, School of Earth, Atmospheric and Environmental Sciences; University of Manchester; Manchester UK
6. Facility for Airborne Atmospheric Measurements; Cranfield UK
7. Climate Research Lab; Oxford University Centre for the Environment; Oxford UK