AlpArray-Italy: Site description and noise characterization

摘要

Within the framework of the European collaborative research initiative AlpArray (a href="http://www.alparray.ethz.ch" target="_blank"http://www.alparray.ethz.ch/a), the Istituto Nazionale di Geofisica e Vulcanolgia (INGV) deployed overall 20 broad-band seismic stations in Northern Italy and on two islands in the Tyrrhenian Sea (Capraia and Montecristo) during Fall-Winter 2015. brbr The temporary deployment (16 stations) will run for two to three years and 4 INGV National Seismic Network accelerometric sites are now equipped with additional permanent broad-band sensors. The 16 temporary stations are equipped with REF TEK 130 digitizers and Nanometrics Trillium Compact 120?s sensors, a couple have Nanometrics Trillium 120P sensors and one a Streckeisen STS2. brbr For each site we describe the settings and discuss the noise levels, the site effects and the preliminary sensitivity analysis.