Current Address:

Physics of Weather and Climate Group
The Abdus Salam International Centre for Theoretical Physics
P.O. BOX 586, I-34100 Trieste, ITALY
(for courier/express mail:
Strada Costiera 11, Miramare (Trieste) I-34014, ITALY)
Phone +39 040 2240360 ; Fax +39 040 2240449
e-mail: feudale@ictp.it