The permanent thermal infrared network for the monitoring of hydrothermal activity at the Solfatara and Vesuvius volcanoes

摘要

In this paper we describe the activities carried out for the realizationof an image surveillance systems, in the thermal infrared (TIR) wavelengthsrange, for the continuous long-term monitoring of the shallow thermal structureof the Solfatara (Campi Flegrei) and Vesuvius volcanoes. The systemimplementation was pursued by both acquiring and integrating all the technologicalinstruments necessary to operate an instrumental system constituted by:a network of remote monitoring stations; a transmission system for the imagedata centralization; a control unit for both the remote stations control and theacquired data processing. The analysis of two-years long series of IR imagescollected at the Solfatara allowed us to evaluate, in the observation period, themain thermal features of the major fumarole field located in the SE inner slopeof the Solfatara crater.