High-resolution hybrid inversion of IASI ammonia columns to constrain US ammonia emissions using the CMAQ adjoint model

Chen, Yilin; Shen, Huizhong; Kaiser, Jennifer; Hu, Yongtao; Capps, Shannon L.; Zhao, Shunliu; Hakami, Amir; Shih, Jhih-Shyang; Pavur, Gertrude K.; Turner, Matthew D.; Henze, Daven K.; Resler, Jaroslav; Nenes, Athanasios; Napelenok, Sergey L.; Bash, Jesse O.; Fahey, Kathleen M.; Carmichael, Gregory R.; Chai, Tianfeng; Clarisse, Lieven; Coheur, Pierre-François; Van Damme, Martin; Russell, Armistead G.

doi:https://doi.org/10.5194/acp-21-2067-2021

Articles | Volume 21, issue 3

https://doi.org/10.5194/acp-21-2067-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-2067-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 3

Research article

|

11 Feb 2021

Research article |

| 11 Feb 2021

High-resolution hybrid inversion of IASI ammonia columns to constrain US ammonia emissions using the CMAQ adjoint model

Yilin Chen, Huizhong Shen, Jennifer Kaiser, Yongtao Hu, Shannon L. Capps, Shunliu Zhao, Amir Hakami, Jhih-Shyang Shih, Gertrude K. Pavur, Matthew D. Turner, Daven K. Henze, Jaroslav Resler, Athanasios Nenes, Sergey L. Napelenok, Jesse O. Bash, Kathleen M. Fahey, Gregory R. Carmichael, Tianfeng Chai, Lieven Clarisse, Pierre-François Coheur, Martin Van Damme, and Armistead G. Russell

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Final revised paper (published on 11 Feb 2021)
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Preprint (discussion started on 29 Jun 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 Chen et al.', Anonymous Referee #1, 23 Aug 2020
- AC1: 'Reply on RC1', Yilin Chen, 03 Jan 2021
RC2: 'Interactive comment on “High-resolution Hybrid Inversion of IASI Ammonia Columns to Constrain U.S. Ammonia Emissions Using the CMAQ Adjoint Model” by Yilin Chen et al.', Anonymous Referee #2, 16 Sep 2020
- AC2: 'Reply on RC2', Yilin Chen, 03 Jan 2021

Peer-review completion

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

AR by Yilin Chen on behalf of the Authors (03 Jan 2021) Author's response Manuscript

ED: Publish as is (05 Jan 2021) by Bryan N. Duncan

AR by Yilin Chen on behalf of the Authors (06 Jan 2021) Author's response Manuscript

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Short summary

Ammonia (NH₃) emissions can exert adverse impacts on air quality and ecosystem well-being. NH₃ emission inventories are viewed as highly uncertain. Here we optimize the NH₃ emission estimates in the US using an air quality model and NH₃ measurements from the IASI satellite instruments. The optimized NH₃ emissions are much higher than the National Emissions Inventory estimates in April. The optimized NH₃ emissions improved model performance when evaluated against independent observation.