1. Cooperative Institute for Environmental Studies University of Colorado Boulder Boulder CO USA
2. NOAA Physical Sciences Lab Boulder CO USA
3. Meteorological Institute, Department of Earth Sciences, Center for Earth System Research and Sustainability (CEN) Universität Hamburg Hamburg Germany
4. Laboratoire de Météorologie Dynamique, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Paris France
5. Met Office Exeter UK
6. Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Boulder CO USA
7. Global Systems Institute Exeter University Exeter UK
8. NOAA Geophysical Fluid Dynamics Laboratory Princeton NJ USA
9. University Corporation for Atmospheric Research Princeton NJ USA
10. Atmospheric and Environmental Research Lexington MA USA