Articles | Volume 8, issue 9
https://doi.org/10.5194/amt-8-3767-2015
https://doi.org/10.5194/amt-8-3767-2015
Research article
 | 
17 Sep 2015
Research article |  | 17 Sep 2015

The impact of vibrational Raman scattering of air on DOAS measurements of atmospheric trace gases

J. Lampel, U. Frieß, and U. Platt

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Short summary
In remote sensing applications, such as differential optical absorption spectroscopy (DOAS), atmospheric scattering processes need to be considered. Inelastic scattering on air molecules can lead to filling-in of absorption lines. The contribution of rotational Raman scattering is typically corrected for. The magnitude of vibrational Raman scattering (VRS) is known from theory and agrees with our first DOAS observations of this effect. Its impact on trace-gas measurements of NO2 is discussed.