An European Tidal Gravity Profile over a 30º Latitude difference (Kevo - Bruxelles - Madrid)

Abstract

Tidal gravlty measuraments have been performed ln 1984-85 at Kevo (North Flnland). Bruxelles and Madrld wlth two LaCoste-Rombarg model"G grav1metars transformed lnto zara method lnstruments. All grav1meters wara normallzad at Brussels. Accordlng to the Wahr modelo a thirty degrees latltude difference should produce more than one per cent dacrease of the ó factor between Madr1d and Kevo. Oue to the uncerta1nties ln tha oceanic"loadlng computat10ns we cannot der1va f1nnconclus10ns for the semldlurnal wava5. The lat1tude effeet 15 elear1y seen on the dlurnal waves betwaen Bruxellas and Kevo but not between Madrld and Bruxe11es. It may be concludad that local anomalles may eonceal the latltude effect.