1. Department of Meteorology, University of Reading, Reading, United Kingdom
2. College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom
3. Meteorological Research Division, Environment Canada, Dorval, Quebec, Canada
4. Met Office, Exeter, United Kingdom
5. Naval Research Laboratory, Washington, D.C.
6. Courant Institute of Mathematical Sciences, New York University, New York, New York
7. Meteorological Research Institute, Tsukuba, Japan
8. Atmospheric and Environmental Sciences, University at Albany, State University of New York, Albany, New York
9. Naval Research Laboratory, Monterey, California
10. Centre for Australian Weather and Climate Research, Bureau of Meteorology, Melbourne, Australia
11. Canadian Centre for Climate Modelling and Analysis, Environment Canada, Victoria, British Columbia, Canada
12. School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
13. European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom