Thanks a lot! Andree -- | Institute of Geophysics phone: +49 40 4123 4389 ANDREE LEIDENFROST | University of Hamburg fax: +49 40 4123 5441 Geophysicist | Bundesstrasse 55 e-mail: leidenfrost@dkrz.de | D-20146 Hamburg www: www.app-geoph.dkrz.de