Validation of satellite formaldehyde (HCHO) retrievals using observations from 12 aircraft campaigns

Zhu, Lei; González Abad, Gonzalo; Nowlan, Caroline R.; Chan Miller, Christopher; Chance, Kelly; Apel, Eric C.; DiGangi, Joshua P.; Fried, Alan; Hanisco, Thomas F.; Hornbrook, Rebecca S.; Hu, Lu; Kaiser, Jennifer; Keutsch, Frank N.; Permar, Wade; St. Clair, Jason M.; Wolfe, Glenn M.

doi:https://doi.org/10.5194/acp-20-12329-2020

Articles | Volume 20, issue 20

https://doi.org/10.5194/acp-20-12329-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-12329-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 20

Research article

|

29 Oct 2020

Research article |

| 29 Oct 2020

Validation of satellite formaldehyde (HCHO) retrievals using observations from 12 aircraft campaigns

Lei Zhu, Gonzalo González Abad, Caroline R. Nowlan, Christopher Chan Miller, Kelly Chance, Eric C. Apel, Joshua P. DiGangi, Alan Fried, Thomas F. Hanisco, Rebecca S. Hornbrook, Lu Hu, Jennifer Kaiser, Frank N. Keutsch, Wade Permar, Jason M. St. Clair, and Glenn M. Wolfe

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Preprint (discussion started on 13 Jan 2020)
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Interactive discussion

Status: closed

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

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RC1: 'Review of Zhu et al', Anonymous Referee #1, 08 Feb 2020
- AC1: 'Reply to RC1', Lei Zhu, 20 Jul 2020
RC2: 'Review of Zhu, L. et al.: Validation of satellite formaldehyde (HCHO) retrievals using observations from 12 aircraft campaigns', Anonymous Referee #2, 10 Feb 2020
- AC2: 'Reply to RC2', Lei Zhu, 20 Jul 2020

Peer-review completion

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

AR by Lei Zhu on behalf of the Authors (20 Jul 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (17 Aug 2020) by Michel Van Roozendael

RR by Anonymous Referee #2 (01 Sep 2020)

ED: Publish as is (14 Sep 2020) by Michel Van Roozendael

AR by Lei Zhu on behalf of the Authors (14 Sep 2020) Manuscript

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Short summary

We develop a validation platform for satellite HCHO retrievals using in situ observations from 12 aircraft campaigns. The platform offers an alternative way to quickly assess systematic biases in HCHO satellite products over large domains and long periods, facilitating optimization of retrieval settings and the minimization of retrieval biases. Application to the NASA operational HCHO product indicates that relative biases range from −44.5 % to +112.1 % depending on locations and seasons.