GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 3.2 GNGTS 2024 Fig. 1. Sensors array geometry for the Casaglia site. The seven Terrabot are shown as red dots (maximum aperture of 50 m), the twelve Le3D5s velocimeters are shown by blue colour (maximum aperture of about 300 m), the twenty- four vertcal 4.5 Hz geophones are shown by black colour (maximum aperture of 60 m). The inset shows the positon of the three investgated sites (Casaglia, Ferrara and Pieve di Cento). Fig. 2. H/V noise spectral ratos for Casaglia (a), Pieve di Cento (b), and for the northern sector of the city of Ferrara (c).