Other
Scientific paper
Jun 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.2317w&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 12, p. 2317-2320
Other
9
Geodesy And Gravity, Geodesy And Gravity: Crustal Movements-Intraplate, Geodesy And Gravity: Instruments And Techniques, Information Related To Geographic Region: Europe
Scientific paper
Absolute gravity near 3 of the United Kingdom's (UK) core tide gauges was repeatedly measured using an FG5 gravimeter over a period of 3-4 years to determine vertical land movements at those gauges. The absolute gravity sites were established at Newlyn and Aberdeen in 1995 and in Lerwick in 1996. Assuming a height change of 1 mm causes a change in gravity of 0.2 μgal we see vertical land movements of 1.0+/-1.4mm/yr at Newlyn, -3.8+/-1.6mm/yr at Lerwick and 0.9+/-3.1mm/yr at Aberdeen. These land movements are, within the error estimates, in agreement with land movement predicted by a model of post-glacial rebound/subsidence. To ensure that our absolute gravimeter is giving accurate results it has been regularly intercompared with other absolute gravimeters and was verified to be in agreement at the 2 μgal level.
Baker Trevor F.
Jeffries Graham
Williams Simon D. P.
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