Modernisation of the accelerometric station OGPO at Poisy (Haute-Savoie)

Modernisation of the accelerometric station OGPO at Poisy (Haute-Savoie) including a change of the site digitizer and signal control. This site has been instrumented since 2002 with an accelerometric sensor Episensor ES-T from Kinemetrics. The sensor is positioned in a room adjoining the Poisy presbytery. Data transfer is carried out in real time via an ADSL modem. The data is transmitted to the ISTerre laboratory before being distributed via the Resif-DC data centre. The site, operated by ISTerre, is part of the Reseau Accelerometrique Permanent (RAP) of Resif, a research infrastructure dedicated to the observation and understanding of the Earth's internal structure and dynamics. It is based on observation networks of high technological level, composed of seismological, geodetic and gravimetric instruments deployed in a dense manner throughout France. The data collected enable the study, with high spatio-temporal resolution, of ground deformation, surface and deep structures, local and global seismicity and natural hazards, particularly seismic, on French territory. Resif is integrated into the European (EPOS - European plate observatory system) and worldwide systems of instruments that allow us to image the interior of the Earth as a whole and to study numerous natural phenomena.