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

Lampel, J.; Frieß, U.; Platt, U.

doi:https://doi.org/10.5194/amt-8-3767-2015

Articles | Volume 8, issue 9

https://doi.org/10.5194/amt-8-3767-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Biogeochemical processes, tropospheric chemistry and interactions...

https://doi.org/10.5194/amt-8-3767-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 9

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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Final revised paper (published on 17 Sep 2015)
Supplement to the final revised paper
Preprint (discussion started on 31 Mar 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C826: 'Review comments of anonymous referee', Anonymous Referee #1, 27 Apr 2015
- AC C1980: 'Answer to Referee #1 and #2', Johannes Lampel, 14 Jul 2015
RC C843: 'The impact of vibrational Raman scattering of air on DOAS measurements of atmospheric trace gases', Anonymous Referee #2, 27 Apr 2015

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.