Impact of aerosols on the OMI tropospheric  NO<sub>2</sub> retrievals over industrialized  regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?

Chimot, J.; Vlemmix, T.; Veefkind, J. P.; de Haan, J. F.; Levelt, P. F.

doi:https://doi.org/10.5194/amt-9-359-2016

Articles | Volume 9, issue 2

https://doi.org/10.5194/amt-9-359-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-359-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 2

Research article

|

05 Feb 2016

Research article |

| 05 Feb 2016

Impact of aerosols on the OMI tropospheric NO₂ retrievals over industrialized regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?

J. Chimot, T. Vlemmix, J. P. Veefkind, J. F. de Haan, and P. F. Levelt

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Final revised paper (published on 05 Feb 2016)
Preprint (discussion started on 10 Aug 2015)

Interactive discussion

Status: closed

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

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RC C2858: 'review', Anonymous Referee #1, 07 Sep 2015
- AC C3708: 'Interactive comment on “Impact of aerosols on the OMI tropospheric NO2 retrievals over industrialized regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?” by J. Chimot et al.', Julien Chimot, 03 Nov 2015
RC C3174: 'Review: Impact of aerosols on the OMI tropospheric NO2 retrievals over industrialized regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?', Anonymous Referee #2, 30 Sep 2015
- AC C3709: 'Interactive comment on “Impact of aerosols on the OMI tropospheric NO2 retrievals over industrialized regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?” by J. Chimot et al.', Julien Chimot, 03 Nov 2015

Short summary

The interplay between aerosols and the OMI O₂–O₂ cloud retrieval algorithm is analysed in detail to evaluate the impacts on the accuracy of the tropospheric NO₂ retrievals over cloud-free scenes. Collocated OMI NO₂ and MODIS Aqua aerosol products are compared over E China, in industrialized areas; the OMI O₂–O₂ cloud retrieval algorithm is implemented on synthetic study cases dominated by aerosol particles. The resulting biases highlight the need for an improved aerosol correction.

Impact of aerosols on the OMI tropospheric NO2 retrievals over industrialized regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?

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Interactive discussion

Impact of aerosols on the OMI tropospheric NO₂ retrievals over industrialized regions: how accurate is the aerosol correction of cloud-free scenes via a simple cloud model?