High-resolution inversion of OMI formaldehyde columns to quantify isoprene emission on ecosystem-relevant scales: application to the southeast US

Kaiser, Jennifer; Jacob, Daniel J.; Zhu, Lei; Travis, Katherine R.; Fisher, Jenny A.; González Abad, Gonzalo; Zhang, Lin; Zhang, Xuesong; Fried, Alan; Crounse, John D.; St. Clair, Jason M.; Wisthaler, Armin

doi:https://doi.org/10.5194/acp-18-5483-2018

Articles | Volume 18, issue 8

https://doi.org/10.5194/acp-18-5483-2018

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

https://doi.org/10.5194/acp-18-5483-2018

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

Articles | Volume 18, issue 8

Research article

|

23 Apr 2018

Research article |

| 23 Apr 2018

High-resolution inversion of OMI formaldehyde columns to quantify isoprene emission on ecosystem-relevant scales: application to the southeast US

Jennifer Kaiser, Daniel J. Jacob, Lei Zhu, Katherine R. Travis, Jenny A. Fisher, Gonzalo González Abad, Lin Zhang, Xuesong Zhang, Alan Fried, John D. Crounse, Jason M. St. Clair, and Armin Wisthaler

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Final revised paper (published on 23 Apr 2018)
Preprint (discussion started on 19 Dec 2017)

Interactive discussion

Status: closed

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

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RC1: 'Review of Kaiser et al', Anonymous Referee #1, 21 Jan 2018
RC2: 'Review of Kaiser et al. manuscript', Anonymous Referee #2, 03 Feb 2018
AC1: 'Response to Reviewers', Jennifer Kaiser, 03 Apr 2018

Peer-review completion

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

AR by Jennifer Kaiser on behalf of the Authors (03 Apr 2018) Author's response Manuscript

ED: Publish as is (10 Apr 2018) by Qiang Zhang

AR by Jennifer Kaiser on behalf of the Authors (11 Apr 2018)

Short summary

Isoprene emissions from vegetation have a large effect on atmospheric chemistry and air quality. Here we use the adjoint of GEOS-Chem in an inversion of OMI formaldehyde observations to produce top-down estimates of isoprene emissions in the southeast US during the summer of 2013. We find that MEGAN v2.1 is biased high on average by 40 %. Our downward correction of isoprene emissions leads to a small reduction in modeled surface O₃ and decreases the contribution of isoprene to organic aerosol.