GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 1.3 GNGTS 2023 (ii) visualization of the results for their interpretation for scientific purposes, including the map of principal strain and the contour plots of change in area (or dilatation), engineering shear normalized to the change in area, second invariant of the strain, prevailing eigenvalue, corresponding uncertainties and geometric significance. A preliminary version of the toolbox was already used. In particular, data from continuous GNSS stations in South-Eastern Sicily (Southern Italy) were processed by means of StaVel and GridStrain in order to refine the rates of active crustal deformation in the upper plate of subduction zones in the specific case of the E-dipping West Crati fault, Southern Italy (Meschis et al., 2022). References Blewitt G., Hammond W.C. and Kreemer C. 2018; Harnessing the GPS data explosion for interdisciplinary science . Eos, 99, DOI 10.1029/2018EO104623. Bos M.S., Fernandes R.M.S., Williams S.D.P. and Bastos L.; 2013: Fast error analysis of continuous GNSS observations with missing data . J. Geod., 87 , 351–360, DOI 10.1007/s00190-012-0605-0. Langbein J.; 2004: Noise in two-color electronic distance meter measurements revisited. J. Geophys. Res., 109 (B4), B04406, 1-16, DOI 10.1029/2003JB002819. Meschis M., Teza G., Serpelloni E., Elia L., Lattanzi G., Di Donato M. and Castellaro S.; 2022: Refining rates of active crustal deformation in the upper plate of subduction zones, implied by geological and geodetic data: the E-dipping West Crati fault, Southern Italy . Remote Sens., 14 , 5303, DOI 10.3390/rs14215303. Teza G., Pesci A. and Galgaro A.; 2008: Grid_strain and grid_strain3: software packages for strain field computation in 2D and 3D environment . Comput. Geosci., 34 (9), 1142-1153, DOI 10.1016/j.cageo.2007.07.006. G. Teza. Email: giordano.teza@unibo.it , giordano.teza@gmail.com