Fróðskaparrit - 01.01.1977, Qupperneq 63

Complementary gravity observations in the Faroe Islands
71
Skanderborg WM 779
Temp °F
Fig. 5, Decay curve (cooling) for Worden Master gravimeter No. 779.
stations are given in metres. A density value of 2.67 g/cm3 has
been employed. Theoretical gravity has been taken from the
tables published by Andersen (1956). That means that the
International Formula of 1930 has been preferred (Lambert
& Darling, 1931) due to the comparison with the previous
gravity value (Saxov 1969 and 1971), even if a new Inter-
national Formula of 1967 (IAG 1971) has been accepted. Like-
wise, it has been preferred to continue to apply Tórshavn 1 =
982.10833 Gal based on the Danish Reference Station Bud-
dinge = 981.55800 Gal as the Faroeish reference station (Saxov
& Spellauge 1967; Saxov 1969) even if newer values have been
defined (Morelli et al. 1971; Morelli 1976).
Terrain corrections are computed according to Hammer
(1939) and Bible (1962). In the rather time-consuming com-
putation of the terrain corrections topographic maps on the
scale of 1:20.000 and 1:00.000, besides sea charts of the
Faroeish Sea have been used. The computations have been
carried out for the zones A to M.
In the following table we have given the number of the