1. Department of Geosciences and Remote Sensing, Faculty of Civil Engineering and GeosciencesDelft University of Technology Delft Netherlands
2. NASA Goddard Institute for Space Studies New York NY USA
3. Institute for Geophysics and Meteorology, Department of Geosciences University of Cologne Cologne Germany
4. U.K. Meteorological Office Exeter UK
5. Institut für Meteorologie und Klimatologie Leibniz Universität Hannover Germany
6. Meteo‐France Toulouse France
7. Department of Atmospheric Sciences University of Utah Salt Lake City UT USA
8. Max PIanck Institute for Meteorology Hamburg Germany