GNGTS 2022 - Atti del 40° Convegno Nazionale

122 GNGTS 2022 Sessione 1.2 We suggest that the most of the uncertainty on the single time series is canceled out when those are combined together and the forecast get reliable also for longer steps (Fig. 1c). This is a further evidence of the assumption at the base of the procedure to combine the time series into a unique signal as proposed by Liuzzo et al., (2013) and of it robustness in providing an estimate of global values for the whole CO 2 monitoring network. Acknowledgements. The authors thank Marco Liuzzo, Sergio Gurrieri, and Giovanni Giuffrida (Istituto Nazionale di Geofisica e Vulcanologia) who provided the data. References Aiuppa, A., Moretti, R., Federico, C., Giudice, G., Gurrieri, S., Liuzzo, M., Ppale, P., Shinohara, H. and Valenza, M.; 2007: Forecasting Etna eruptions by real-time observation of volcanic gas composition . Geology, 35(12), 1115-1118. Cannata, A., Spedalieri, G., Behncke, B., Cannavò, F., Di Grazia, G., Gambino, S., Gresta, S., Gurrieri, S., Liuzzo, M. and Palano, M.; 2015: Pressurization and depressurization phases inside the plumbing system of Mount Etna volcano: Evidence from a multiparametric approach . J. Geophys. Res.: Solid Earth, 120(9), 5965-5982. Gurrieri, S., Liuzzo, M. and Giudice, G.; 2008: Continuous monitoring of soil CO2 flux on Mt. Etna: The 2004–2005 eruption and the role of regional tectonics and volcano tectonics . J. Geophys. Res:. Research: Solid Earth, 113(B9). Gurrieri, S., Liuzzo, M., Giuffrida, G. and Boudoire, G.; 2021: The first observations of CO2 and CO2/SO2 degassing variations recorded at Mt. Etna during the 2018 eruptions followed by three strong earthquakes . It. J. Geosci. 140(1), 95-106. Liuzzo, M., Gurrieri, S., Giudice, G., and Giuffrida, G.; 2013. Ten years of soil CO2 continuous monitoring on Mt. Etna: Exploring the relationship between processes of soil degassing and volcanic activity . Geochem. Geophys. Geosystems, 14(8), 2886-2899. Paonita, A., Liuzzo, M., Salerno, G., Federico, C., Bonfanti, P., Caracausi, A., Giuffrida, G., La Spina, A., Caltabiano, T., Gurrieri, S. and Giudice, G.; 2021: Intense overpressurization at basaltic open-conduit volcanoes as inferred by geochemical signals: The case of the Mt. Etna December 2018 eruption . Sci. Adv. 7(36), eabg6297. Scudero, S., D’Alessandro, A., Giuffrida, G., Gurrieri, S. and Liuzzo, M.; 2022: Wavelet-based filtering and prediction of soil CO2 flux: Example from Etna volcano (Italy). J. Volc. Geotherm. Res. 421, 107421.