1. Meteorological Institute Universität Hamburg Hamburg Germany
2. I. M. Systems Group Rockville MD USA
3. NOAA/NESDIS Center for Satellite Applications and Research College Park MD USA
4. Royal Netherlands Meteorological Institute (KNMI) de Bilt The Netherlands
5. Carr Astronautics Greenbelt Maryland USA
6. NASA Goddard Space Flight Center Greenbelt MD USA
7. Finnish Meteorological Institute Kuopio Finland
8. Department of Computer Science ETH Zürich Zürich Switzerland