1. European Commission, Joint Research Centre; Ispra Italy
2. MPI; Hamburg Germany
3. LSCE IPSL; Gif sur Yvette France
4. UK Met Office; Exeter UK
5. KIT; Garmisch-Partenkirchen Germany
6. NCAR; Boulder Colorado USA
7. Now at Ludwig-Maximilians-Universität München; Munich Germany
8. University of Exeter; Exeter UK