000005838 001__ 5838
000005838 005__ 20220922115931.0
000005838 0247_ $$2DOI$$a10.1093/gji/ggs092
000005838 037__ $$aSCART-2022-0084
000005838 100__ $$aSarti, Pierguido
000005838 245__ $$aIntrasite motions and monument instabilities at Medicina ITRF co-location site 
000005838 260__ $$c2013
000005838 520__ $$aWe process the total-station surveys performed at the ITRF co-location site Medicina (Northern Italy) over the decade (2001–2010) with the purpose of determining the extent of local intrasite motions and relating them to local geophysical processes, the geological setting and the design of the ground pillars. In addition, continuous observations acquired by two co-located GPS stations (MEDI and MSEL separated by ≈27 m) are analysed and their relative motion is cross-checked with the total-station results. The local ground control network extends over a small area (<100 × 100 m) but the results demonstrate significant anisotropic deformations with rates up to 1.6 mm a−1, primarily horizontal, a value comparable to intraplate tectonic deformations. The results derived from GPS and total-station observations are consistent and point to the presence of horizontal intrasite motions over very short distances possibly associated with varying environmental conditions in a very unfavourable local geological setting and unsuitable monument design, these latter being crucial aspects of the realization and maintenance of global permanent geodetic networks and the global terrestrial reference frame.
000005838 594__ $$aNO
000005838 6531_ $$aTime-series analysis
000005838 6531_ $$a Reference systems
000005838 6531_ $$a Space geodetic surveys
000005838 6531_ $$a Intraplate processes
000005838 6531_ $$a Europe
000005838 700__ $$aAbbondanza, Claudio
000005838 700__ $$aLegrand, Juliette
000005838 700__ $$aBruyninx, Carine
000005838 700__ $$aVittuari, Luca
000005838 700__ $$aRay, Jim
000005838 773__ $$c1042-1051$$n3$$pGeophysical Journal International$$v192$$y2013
000005838 8560_ $$felodie.brahy@ksb-orb.be
000005838 85642 $$ahttps://academic.oup.com/gji/article/192/3/1042/823773
000005838 905__ $$apublished in
000005838 980__ $$aREFERD