Articles | Volume 14, issue 1
Atmos. Meas. Tech., 14, 295–307, 2021
https://doi.org/10.5194/amt-14-295-2021
Atmos. Meas. Tech., 14, 295–307, 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 et al.

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AR by Christopher Fuchs on behalf of the Authors (17 Nov 2020)  Author's response    Manuscript
ED: Publish as is (23 Nov 2020) by Andreas Hofzumahaus
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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.