Provision of access to the following infrastructure: Virtual access to remote sensing and numerical models and simulations Description of the infrastructure Name of the infrastructure and installations: Clermont Auvergne University (UCA) – Observatoire de Physique du Globe de Clermont-Ferrand (OPGC) – Laboratoire Magmas et Volcans (LMV) Location of the infrastructure: Clermont-Ferrand, France Web site address: Annual operating costs (excl. investment costs) of the infrastructure (€): 30 k€ (local and national funding) + 2.5 k€ (EUROVOLC) Description of the infrastructure: The Observatoire de Physique du Globe de Clermont-Ferrand (OPGC) is an Observatory of Earth Science recognized by the CNRS-INSU and the Clermont Auvergne University (UCA). One of the research laboratory hosted by UCAOPGC is the “Laboratoire Magmas et Volcans” (LMV). Its international reputation is based on its expertise in the study of magmas and volcanoes. The LMV combines a multidisciplinary approach to volcanic and magmatic problems.

Task 24.1 Visualisation of and access to real-time thermal data and products (‘HOTVOLC’) HOTVOLC is a real-time WebGIS monitoring system ( of active volcanoes using satellite-based data from geostationary (GEO) platforms (MSG-SEVIRI in particular). It allows 24/7 early-warnings of volcanic activity from both thermal anomalies and ash/gas plumes detection using TIR spectral window. It also allows the continuous monitoring of the ongoing activity (fundamental to catch eruptive style evolutions/changes) at a rate of one image every 15 minutes.

Task 24.2 Tools for modelling of ground surface displacements (‘DefVolc’). This access activity will be implemented through the first year, thanks to a 6-month contract requested within the framework of the project. DefVolc will need a re-writing of the code defvolc (in matlab) to make it more accessible and understandable (MS41 at month 12). A 6-months Engineer contract will be dedicated to this task. Meanwhile, a computer cluster will be made available to the volcanology community for the computation of inversions of surface displacements (at month12). Services currently offered by the infrastructure: An on-line and interactive web-interface is already designed for HOTVOLC. The processing of satellite-based data allows quantitative parameters to be retrieved in a timely fashion for near-real-time assimilation of source parameters within ash plume/cloud transport and dispersion models, such as the cloud top height (km) and velocity (m/s), very fine ash (1-15µm), grain-size distribution, MER estimation (Kg/s), and fine ash cloud concentration (g/m²). The French volcanological community already benefit from the HOTVOLC facilities thanks to the National Service of Volcanological Observation (CNRS-INSU). The VA capabilities are also being implemented for European users, and more-widely for the worldwide scientific community, in the framework of EPOS.