Improved slant column density retrieval of nitrogen dioxide and formaldehyde for OMI and GOME-2A from QA4ECV: intercomparison, uncertainty characterisation, and trends

Zara, Marina; Boersma, K. Folkert; De Smedt, Isabelle; Richter, Andreas; Peters, Enno; van Geffen, Jos H. G. M.; Beirle, Steffen; Wagner, Thomas; Van Roozendael, Michel; Marchenko, Sergey; Lamsal, Lok N.; Eskes, Henk J.

doi:https://doi.org/10.5194/amt-11-4033-2018

Articles | Volume 11, issue 7

https://doi.org/10.5194/amt-11-4033-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-11-4033-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 7

Research article

|

11 Jul 2018

Research article |

| 11 Jul 2018

Improved slant column density retrieval of nitrogen dioxide and formaldehyde for OMI and GOME-2A from QA4ECV: intercomparison, uncertainty characterisation, and trends

Marina Zara, K. Folkert Boersma, Isabelle De Smedt, Andreas Richter, Enno Peters, Jos H. G. M. van Geffen, Steffen Beirle, Thomas Wagner, Michel Van Roozendael, Sergey Marchenko, Lok N. Lamsal, and Henk J. Eskes

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Final revised paper (published on 11 Jul 2018)
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Preprint (discussion started on 11 Jan 2018)
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Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of QA4ECV OMI/GOME-2A NO2 and HCHO SCDs by Zara et al.', Anonymous Referee #2, 20 Mar 2018
- AC1: 'Final Response to Anonymous Referee #2', Marina Zara, 08 Jun 2018
RC2: 'Improved slant column density retrieval of nitrogen dioxide and formaldehyde', Anonymous Referee #3, 12 Apr 2018
- AC2: 'Final Response to Anonymous Referee #3', Marina Zara, 08 Jun 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Marina Zara on behalf of the Authors (11 Jun 2018) Author's response Manuscript

ED: Publish as is (12 Jun 2018) by Ronald Cohen

AR by Marina Zara on behalf of the Authors (13 Jun 2018)

Short summary

Nitrogen dioxide and formaldehyde satellite data are used for air quality and climate studies. We quantify and characterise slant column uncertainties from different research groups. Our evaluation is motivated by recently improved techniques and by a desire to provide fully traceable uncertainty budget for climate records generated within the QA4ECV project. The improved slant columns are in agreement but with substantial differences in the reported uncertainties between groups and instruments.