Sistema di sincronizzazione dei dati multiparametrici acquisiti dagli osservatori sottomarini cablati nella facility di EMSO Western Ionian Sea

Abstract

The PON‐EMSO InSea (Initiatives in Supporting the consolidation and enhancement of the EMSO infrastructure and related Activities) project aims to upgrade the seafloor infrastructure located offshore Catania and called Western Ionian Sea, the facility managed by INGV (Istituto Nazionale di Geofisica e Vulcanologia) and part of the European Consortium EMSO (European Multidisciplinary Seafloor and water column Observatory). The objective of the project is the permanent installation of several multiparametric seabed observatories, at a depth of about 2000 meters, powered by a submarine electro‐optical cable connected to a shore station located in the port of Catania and managed in collaboration with INFN (Istituto Nazionale di Fisica Nucleare). Through the electro‐optical cable, the submarine instrumentation is connected to the onshore laboratory; all the instruments are nodes of an ethernet network whose purpose is to save the data produced by the observatories, monitor and control the parameters of the submarine infrastructure and manage the timing of all the instruments. This technical report describes the constructional and functional characteristics of the Syncboard v1.0 synchronization board developed by INGV to distribute the timing supplied by a GPS antenna, installed at the shore station, to all the instruments installed on the submarine observatories