Articles | Volume 14, issue 1
https://doi.org/10.5194/amt-14-295-2021
https://doi.org/10.5194/amt-14-295-2021
Research article
 | 
14 Jan 2021
Research article |  | 14 Jan 2021

Quantitative imaging of volcanic SO2 plumes using Fabry–Pérot interferometer correlation spectroscopy

Christopher Fuchs, Jonas Kuhn, Nicole Bobrowski, and Ulrich Platt

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Cited articles

Aiuppa, A., Giudice, G., Gurrieri, S., Liuzzo, M., Burton, M., Caltabiano, T., McGonigle, A. J. S., Salerno, G., Shinohara, H., and Valenza, M.: Total volatile flux from Mount Etna, Geophys. Res. Lett., 35, L24302, https://doi.org/10.1029/2008gl035871, 2008. a
Bluth, G., Shannon, J., Watson, I., Prata, A., and Realmuto, V.: Development of an ultra-violet digital camera for volcanic SO2 imaging, Journal of Volcanol. Geoth. Res., 161, 47–56, 2007. a, b
Bogumil, K., Orphal, J., Homann, T., Voigt, S., Spietz, P., Fleischmann, O., Vogel, A., Hartmann, M., Kromminga, H., Bovensmann, H., Frerick, J., and Burrows, J.: Measurements of molecular absorption spectra with the {SCIAMACHY} pre-flight model: instrument characterization and reference data for atmospheric remote-sensing in the 230–2380 nm region, J. Photoch. Photobio. A, 157, 167–184, https://doi.org/10.1016/S1010-6030(03)00062-5, 2003. a
Chance, K. and Kurucz, R.: An improved high-resolution solar reference spectrum for earth's atmosphere measurements in the ultraviolet, visible, and near infrared, J. Quant. Spectrosc. Ra., 111, 1289–1295, https://doi.org/10.1016/j.jqsrt.2010.01.036, 2010. a
D′Aleo, R., Bitetto, M., Donne, D. D., Tamburello, G., Battaglia, A., Coltelli, M., Patanè, D., Prestifilippo, M., Sciotto,  M., and Aiuppa, A.: Spatially resolved SO2 flux emissions from Mt Etna, Geophys. Res. Lett., 43, 7511–7519, https://doi.org/10.1002/2016gl069938, 2016. a
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Short summary
We present first measurements of volcanic SO2 emissions with a novel imaging technique for atmospheric trace gases in the UV and visible spectral range. Periodic spectral Fabry–Pérot interferometer transmission features are matched to differential absorption cross sections of the investigated trace gas, yielding high selectivity and sensitivity. The technique can be extended to measure many other trace gases with high spatio-temporal resolution.