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Absolute Gravimetry

Small changes in height cause detectable differences in the strength of the gravitational field experienced by a falling object.


The purpose of running an AG at the SGF Herstmonceux is to provide a long-term data set which can provide vertical height movements independent of those from the space based geodetic techniques. A long-term aim is to investigate the Global Isostatic Adjustment (GIA) signal from this region.

AG data has been collected at Herstmonceux since 2006 and it has been shown that there are signals within the data which are of interest and should be removed. The signals detected are on various time scales and from various of sources. Investigations are being carried out on tidal, atmospheric and hydrological responses.



Earth Orientation Parameters:
 60962.0 2025 10 14 287  0.20715  0.32582  0.093997
 60963.0 2025 10 15 288  0.20530  0.32510  0.094481
 60964.0 2025 10 16 289  0.20339  0.32438  0.094741
 60965.0 2025 10 17 290  0.20145  0.32371  0.094759
 60966.0 2025 10 18 291  0.19953  0.32297  0.094576
 60967.0 2025 10 19 292  0.19792  0.32236  0.094298
 60968.0 2025 10 20 293  0.19646  0.32207  0.093963
 60969.0 2025 10 21 294  0.19493  0.32210  0.093661
 60970.0 2025 10 22 295  0.19329  0.32238  0.093464
 60971.0 2025 10 23 296  0.19155  0.32266  0.093440
 60972.0 2025 10 24 297  0.18990  0.32265  0.093507
 60973.0 2025 10 25 298  0.18829  0.32248  0.093701
 60974.0 2025 10 26 299  0.18682  0.32216  0.094012
 60975.0 2025 10 27 300  0.18549  0.32174  0.094371
 60976.0 2025 10 28 301  0.18428  0.32130  0.094704
 60977.0 2025 10 29 302  0.18314  0.32088  0.094921
 60978.0 2025 10 30 303  0.18204  0.32051  0.094932
 60979.0 2025 10 31 304  0.18097  0.32016  0.094677
 60980.0 2025 11  1 305  0.17991  0.31982  0.094130
 60981.0 2025 11  2 306  0.17886  0.31948  0.093325
 60982.0 2025 11  3 307  0.17782  0.31914  0.092355