Use of low-cost acquisition systems with an embedded linux device for volcanic monitoring

This paper describes the development of a low-cost multiparameter acquisition system for volcanic monitoring that is applicable to gravimetry and geodesy, as well as to the visual monitoring of volcanic activity. The acquisition system was developed using a System on a Chip (SoC) Broadcom BCM2835 Linux operating system (based on DebianTM) that allows for the construction of a complete monitoring system offering multiple possibilities for storage, data-processing, configuration, and the real-time monitoring of volcanic activity. This multiparametric acquisition system was developed with a software environment, as well as with different hardware modules designed for each parameter to be monitored. The device presented here has been used and validated under different scenarios for monitoring ocean tides, ground deformation, and gravity, as well as for monitoring with images the island of Tenerife and ground deformation on the island of El Hierro.Postprint (published version

A wireless network as support to the monitoring of Campi Flegrei volcano in Italy

The main purpose of this work is the design and implementation of an integrated wireless network as support to the multiparametric geophysical monitoring network of the Campi Flegrei volcanic area, in view of the increased need for seismic monitoring, which is a consequence of the drilling of an exploration well for scientific purposes. The goal is to increase the performance of the transmission system in terms of speed, real-time availability and reliability, given the high seismic risk and hazard associated with the experiment. The drilling is part of the international research project called “Campi Flegrei Deep Drilling Project” (CFDDP). For this purpose, in the first half of 2012, it was necessary to enhance the multiparametric monitoring network of Campi Flegrei, creating a subnet of seismic sensors, with limited geographical extension, but concentrated around the area of the well realization. The data acquisition from the monitoring center “Osservatorio Vesuviano”, section of Naples of the INGV, is guaranteed by a system of radio links in the 5 GHz band, due to the high interference in the typical band 802.11 and the highly urbanized area of interest. The subnet has shown a good cost/benefit ratio as regards the transmission, and it has proved to be useful for the monitoring purposes in order to detect in real time possible anomalies related to the drilling.PublishedNaples1IT. Reti di monitoraggi