1. School of Environmental Sciences University of East Anglia Norwich UK
2. Met Office Exeter UK
3. Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research Bergen Norway
4. British Antarctic Survey Cambridge UK
5. Norwegian Meteorological Institute Oslo Norway
6. Department of Physics University of Toronto Toronto Canada
7. Woods Hole Oceanographic Institution Woods Hole Massachusetts USA
8. European Centre for Medium‐range Weather Forecasts Reading UK
9. College of Engineering, Mathematics and Physical Science, University of Exeter Exeter UK