1. Department of Applied Environmental Science Stockholm University Stockholm Sweden
2. Institute of Space and Atmospheric Studies University of Saskatchewan Saskatoon Saskatchewan Canada
3. Alfred Wegener Institute for Polar and Marine Research Bremerhaven Germany
4. ECMWF Reading UK
5. Norwegian Meteorological Institute Oslo Norway
6. Department of Meteorology Stockholm University Stockholm Sweden
7. Norwegian Institute for Air Research Oslo Norway
8. National Supercomputer Centre Linköping University Linköping Sweden
9. NASA Langley Research Center Hampton Virginia USA