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:
60625.0 2024 11 11 316 0.20760 0.35112 0.054531 60626.0 2024 11 12 317 0.20727 0.34951 0.053795 60627.0 2024 11 13 318 0.20679 0.34800 0.052946 60628.0 2024 11 14 319 0.20636 0.34664 0.052143 60629.0 2024 11 15 320 0.20585 0.34560 0.051571 60630.0 2024 11 16 321 0.20511 0.34455 0.051320 60631.0 2024 11 17 322 0.20434 0.34351 0.051332 60632.0 2024 11 18 323 0.20330 0.34242 0.051546 60633.0 2024 11 19 324 0.20263 0.34103 0.051881 60634.0 2024 11 20 325 0.20262 0.33987 0.052210 60635.0 2024 11 21 326 0.20224 0.33885 0.052400 60636.0 2024 11 22 327 0.20208 0.33804 0.052392 60637.0 2024 11 23 328 0.20174 0.33728 0.052195 60638.0 2024 11 24 329 0.20120 0.33654 0.051855 60639.0 2024 11 25 330 0.20052 0.33574 0.051424 60640.0 2024 11 26 331 0.19976 0.33489 0.050960 60641.0 2024 11 27 332 0.19895 0.33400 0.050537 60642.0 2024 11 28 333 0.19812 0.33309 0.050217 60643.0 2024 11 29 334 0.19726 0.33217 0.050042 60644.0 2024 11 30 335 0.19640 0.33126 0.050040 60645.0 2024 12 1 336 0.19552 0.33037 0.050223