Articles | Volume 19, issue 4
https://doi.org/10.5194/amt-19-1165-2026
https://doi.org/10.5194/amt-19-1165-2026
Research article
 | 
17 Feb 2026
Research article |  | 17 Feb 2026

An intercomparison of aircraft sulfur dioxide measurements in clean and polluted marine environments

Loren G. Temple, Stuart Young, Thomas Bannan, Stephanie E. Batten, Stéphane Bauguitte, Hugh Coe, Eve Grant, Stuart E. Lacy, James D. Lee, Emily Matthews, Dominika Pasternak, Samuel D. A. Rogers, Andrew W. Rollins, Jake Vallow, Mingxi Yang, and Pete M. Edwards

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Short summary
Sulfur dioxide (SO2) is a key precursor to aerosol formation, particularly in remote marine environments, ultimately affecting cloud properties and climate. Accurate quantification of atmospheric SO2 is therefore crucial. This work compares a custom-built laser-based instrument to two commercial SO2 analysers during measurements from a large research aircraft. Our results show that this custom-built system offers greater sensitivity at time resolutions required for aircraft measurements.
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