Monitoring Site Stability at the Space Geodesy Facility, Herstmonceux, UK
Deformations at the local site level will directly introduce errors both into site coordinates that are determined from individual geodetic techniques and the measured site ties that link those techniques at co-located sites. Such errors will be present in individual-technique solutions and affect their combination in the formation of an International Terrestrial Reference Frame (ITRF). The NERC Space Geodesy Facility at Herstmonceux, UK, operates a highly precise and prolific International Laser Ranging Service satellite laser ranging (SLR) station, two International Global Navigational Satellite Systems Service (IGS) receivers and a permanently-installed absolute gravimeter. As a result, the site remains an important contributor to the maintenance of the ITRF. Site deformation is monitored using a recently-instigated programme of precise digital levelling and by short-baseline GPS analyses using data from on-site and regional GNSS receivers. The stability of the Herstmonceux site will impact on the validity of future comparisons of site height changes observed using the three independent techniques, SLR, GPS and absolute gravimetry.
KeywordsSite stability Co-location Levelling GPS Short baseline
- Altamimi Z, Collilieux X, Métivier L (2011) ITRF2008: an improved solution of the international terrestrial reference frame. J Geodesy. doi:10.1007/s00190-011-0444-4
- Appleby GM, Smith V, Wilkinson M, Ziebart M, Williams S (2010) Comparison of height anomalies determined from SLR, absolute gravimetry and GPS with high frequency borehole data at Herstmonceux. Grav Geoid Earth Observ Int Assoc Geodesy Symp 135(1):107–113. doi:10.1007/978-3-642-10634-7_15 CrossRefGoogle Scholar
- Herring TA, King RW, McClusky SC (2010) GAMIT reference manual and GLOBK reference manual, release 10.4. Massachusetts Institute of Technology, CambridgeGoogle Scholar
- Willis P, Fagard H, Ferrage P, Lemoine FG, Noll CE, Noomen R, Otten M, Ries JC, Rothacher M, Soudarin L, Tavernier G, Valette J-J (2010) The international DORIS service (IDS): toward maturity. DORIS Sci Appl Geodesy Geodyn Adv Space Res 45(12):1408–1420. doi:10.1016/j.asr.2009.11.018 CrossRefGoogle Scholar
- Wyatt FK, Agnew DC (2005) The PIN1 and PIN2 GPS sites at Pinon flat observatory. UC San Diego: Scripps Institution of Oceanography Retrieved from: http://escholarship.org/uc/item/3z16h0zm