1. Finnish Meteorological Institute Helsinki Finland
2. Institute for Atmospheric and Climate Science ETH Zürich Zürich Switzerland
3. National Oceanic and Atmospheric Administration (NOAA) Chemical Sciences Laboratory Boulder CO USA
4. University of Lausanne Lausanne Switzerland
5. Department of Meteorology University of Reading Reading UK
6. Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder CO USA
7. National Oceanic and Atmospheric Administration (NOAA) Physical Sciences Laboratory Boulder CO USA
8. Max‐Planck‐Institut für Meteorologie Hamburg Germany
9. Canadian Centre for Climate Modelling and Analysis Environment and Climate Change Canada Victoria BC Canada
10. Climate and Global Dynamics Laboratory National Center for Atmospheric Research Boulder CO USA