In-Situ monitoring of Volcanic Gases at Solfatara crater with hybrid e-nose

摘要

The analysis of fumarolic gases, released in high activity volcanic areas, can provide significant information on the status of these areas. Variation in composition of this gases can, infact, be correlated with volcanoes' dynamics. This variations are typically due to chemical interactions between magma and the different layers of rocks and aquifers with which it came in touch during its movements toward surface. In this work, we propose the use of an hybrid e-nose, hosting both commercial and ENEA developed gas sensors, for the analysis of fumarolic gases within the solfatara crater. This approach has shown to be capable to provide both qualitative and quantitative information that by the use of pattern recognition techniques and neural regression schemes could be used to extract significant indexes on undergoing volcano dynamics.