Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 19
Articles | Volume 18, issue 19
https://doi.org/10.5194/amt-18-5281-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-5281-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 19
Research article
 | 
14 Oct 2025
Research article |  | 14 Oct 2025

A novel simplified ground-based thermal infrared (TIR) system for volcanic plume geometry, SO2 columnar abundance, and flux retrievals

Lorenzo Guerrieri, Stefano Corradini, Luca Merucci, Dario Stelitano, Fred Prata, Linda Lambertucci, Camilo Naranjo, and Riccardo Biondi

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Cited articles

Berk, A., Anderson, G. P., Acharya, P. K., Bernstein, L. S., Muratov, L., Lee, J., Fox, M. J., Adler-Golden, S. M., Chetwynd, J. H., Hoke, M. L., Lockwood, R. B., Cooley, T. W., and Gardner, J. A.: MODTRAN5: a reformulated atmospheric band model with auxiliary species and practical multiple scattering options, in: Multispectral and Hyperspectral Remote Sensing Instruments and Applications II, Honolulu, United States, 8–12 November 2004, Proc. SPIE 5655, 13, https://doi.org/10.1117/12.578758, 2005. 
Bombrun, M., Jessop, D., Harris, A., and Barra, V.: An algorithm for the detection and characterisation of volcanic plumes using thermal camera imagery, J. Volcanol. Geoth. Res., 352, 26–37, https://doi.org/10.1016/j.jvolgeores.2018.01.006, 2018. 
Casadevall, T. J.: The 1989–1990 eruption of Redoubt Volcano, Alaska: impacts on aircraft operations, J. Volcanol. Geoth. Res., 62, 301–316, https://doi.org/10.1016/0377-0273(94)90038-8, 1994. 
Corradini, S., Guerrieri, L., Brenot, H., Clarisse, L., Merucci, L., Pardini, F., Prata, A. J., Realmuto, V. J., Stelitano, D., and Theys, N.: Tropospheric Volcanic SO2 Mass and Flux Retrievals from Satellite. The Etna December 2018 Eruption, Remote Sensing, 13, 2225, https://doi.org/10.3390/rs13112225, 2021. 
Corradini, S., Merucci, L., and Prata, A. J.: Retrieval of SO2 from thermal infrared satellite measurements: correction procedures for the effects of volcanic ash, Atmos. Meas. Tech., 2, 177–191, https://doi.org/10.5194/amt-2-177-2009, 2009. 
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This work presents a new simplified ground-based thermal infrared (TIR) system capable of detecting and retrieving volcanic emissions during both the day and the night. Knowing the location of the instrument and the crater, it is possible to compute the geometry (height and thickness) of a volcanic plume. Furthermore, thanks to a specific filter positioned in front of one of the TIR cameras, it is possible to compute the sulfur dioxide (SO2) content emitted by the volcano at a safe distance from the vent.
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