++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Dr. Gary J. Robinson Tel: +44 (0)(118) 931 8741/2/3 Environmental Systems Science Centre (ESSC) or: +44 (0)(118) 987 5123 x4173 The University of Reading Fax: +44 (0)(118) 931 6413 Harry Pitt Building Telex: 847813 3, Earley Gate Whiteknights, PO Box 238 Reading RG6 6AL e-mail: gazza@mail.nerc-essc.ac.uk England, UK URL: http://www.nerc-essc.ac.uk/~gazza ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++