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:
60595.0 2024 10 12 286 0.22657 0.39238 0.060542 60596.0 2024 10 13 287 0.22628 0.39101 0.060403 60597.0 2024 10 14 288 0.22601 0.38977 0.059933 60598.0 2024 10 15 289 0.22595 0.38850 0.059047 60599.0 2024 10 16 290 0.22573 0.38728 0.057826 60600.0 2024 10 17 291 0.22507 0.38608 0.056595 60601.0 2024 10 18 292 0.22428 0.38458 0.055572 60602.0 2024 10 19 293 0.22372 0.38290 0.054948 60603.0 2024 10 20 294 0.22334 0.38130 0.054682 60604.0 2024 10 21 295 0.22302 0.37987 0.054772 60605.0 2024 10 22 296 0.22278 0.37839 0.054983 60606.0 2024 10 23 297 0.22254 0.37707 0.055232 60607.0 2024 10 24 298 0.22231 0.37577 0.055436 60608.0 2024 10 25 299 0.22207 0.37446 0.055545 60609.0 2024 10 26 300 0.22182 0.37315 0.055503 60610.0 2024 10 27 301 0.22156 0.37183 0.055262 60611.0 2024 10 28 302 0.22130 0.37050 0.054832 60612.0 2024 10 29 303 0.22102 0.36917 0.054291 60613.0 2024 10 30 304 0.22074 0.36785 0.053727 60614.0 2024 10 31 305 0.22044 0.36653 0.053250 60615.0 2024 11 1 306 0.22012 0.36521 0.052891