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:
60550.0 2024 8 28 241 0.20624 0.45246 0.047646 60551.0 2024 8 29 242 0.20680 0.45107 0.048828 60552.0 2024 8 30 243 0.20750 0.44984 0.049976 60553.0 2024 8 31 244 0.20810 0.44873 0.051004 60554.0 2024 9 1 245 0.20840 0.44738 0.051831 60555.0 2024 9 2 246 0.20886 0.44557 0.052423 60556.0 2024 9 3 247 0.20959 0.44391 0.052902 60557.0 2024 9 4 248 0.21040 0.44279 0.053296 60558.0 2024 9 5 249 0.21136 0.44192 0.053538 60559.0 2024 9 6 250 0.21239 0.44096 0.053797 60560.0 2024 9 7 251 0.21348 0.43999 0.054072 60561.0 2024 9 8 252 0.21449 0.43883 0.054436 60562.0 2024 9 9 253 0.21551 0.43762 0.054950 60563.0 2024 9 10 254 0.21655 0.43636 0.055617 60564.0 2024 9 11 255 0.21760 0.43506 0.056414 60565.0 2024 9 12 256 0.21866 0.43372 0.057286 60566.0 2024 9 13 257 0.21971 0.43236 0.058142 60567.0 2024 9 14 258 0.22074 0.43098 0.058871 60568.0 2024 9 15 259 0.22175 0.42959 0.059349 60569.0 2024 9 16 260 0.22273 0.42818 0.059488 60570.0 2024 9 17 261 0.22369 0.42675 0.059263