Articles | Volume 19, issue 12
https://doi.org/10.5194/amt-19-4065-2026
https://doi.org/10.5194/amt-19-4065-2026
Research article
 | 
24 Jun 2026
Research article |  | 24 Jun 2026

Characterisation of spectroscopic properties of DOAS instruments using high-resolution solar spectra

Thomas Wagner, Steffen Beirle, Sebastian Donner, Carl-Fredrik Enell, Myojeong Gu, Bianca Lauster, Ulrich Platt, Janis Pukite, Uwe Raffalski, and Steffen Ziegler

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Short summary
The characterisation of spectroscopic properties of Differential Optical Absorption Spectroscopy (DOAS) instruments is important for accurate trace gas retrievals. In this study, we evaluate and extend existing methods for the determination of such properties using high-resolution solar spectra. These methods can be applied to routine observations in the field. Our results and developed techniques are especially important for trend analyses from long-term measurements.
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