Dear Michael and John,

as we did not have direct �18O measurements of North Sea Water, we only
used the established salinity-�18O slope from North Atlantic surface
waters.Those interested in this dataset, can contact me directly.

Kind regards
Gerald Ganssen

Dr.Gerald Ganssen
Institute of Earth Sciences
Free University
De Boelelaan 1085
1081 HV Amsterdam
The Netherlands
tel.: 31 20 4447369 (office)
      31 20 4447308 (mass-spectrometer lab.)
      31 653845009  (private)
fax:  31 20 6462457