GNGTS 2015 - Atti del 34° Convegno Nazionale

Fig. 2 – Example of microtremor report published on station monograph of ITACA: a) information about the measurements and processing parameters; b) smoothedunfiltered Fourier spectra; c) HVSRtime histories; d) HVSR azimuthal variations; e) mean HVSR; f) SESAME reliability criteria for the peaks identified in the HVSR. details about the measurement and the parameters adopted for the analysis are reported (Fig. 2a), such as the duration of the recording, the sensor model, the minimum expected fundamental frequency (f 0 ), etc. The results are displayed in terms of: unfiltered smoothed Fourier spectra for each component (Fig. 2b), time histories relevant to the components (Fig. 2c), rotated HVSRs (Fig. 2d), mean HVSR (Fig. 2e) and SESAME criteria indicating the degree of reliability of the HVSR peaks (Fig. 2f). The main goal of the technical reports published on ITACA is to provide the end-user with the information about the quality of the microtremor measurement and the reliability of the HVSR peak, if any. In order to provide an immediate indication about the quality of the single 124 GNGTS 2015 S essione 2.2