Estimating global ammonia (NH<sub>3</sub>) emissions based on IASI observations from 2008 to 2018

Luo, Zhenqi; Zhang, Yuzhong; Chen, Wei; Van Damme, Martin; Coheur, Pierre-François; Clarisse, Lieven

doi:https://doi.org/10.5194/acp-22-10375-2022

Articles | Volume 22, issue 15

https://doi.org/10.5194/acp-22-10375-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-10375-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 15

Research article

|

12 Aug 2022

Research article |

| 12 Aug 2022

Estimating global ammonia (NH₃) emissions based on IASI observations from 2008 to 2018

Zhenqi Luo, Yuzhong Zhang, Wei Chen, Martin Van Damme, Pierre-François Coheur, and Lieven Clarisse

Supplement

https://doi.org/10.5194/acp-22-10375-2022-supplement

Data sets

Near-real time daily IASI/Metop-A ULB-LATMOS ammonia (NH3) L2 product (total column) L. Clarisse and P. Coheur https://doi.org/10.25326/10

ERA5-Land hourly data from 1981 to present J. Muñoz Sabater https://doi.org/10.24381/cds.e2161bac

Estimating global ammonia (NH3) emissions based on IASI observations from 2008 to 2018 (1.0.0) Zhenqi Luo and Yuzhong Zhang https://doi.org/10.5281/zenodo.6969734

[Manure Management] and [Synthetic Fertilizers] FAO https://www.fao.org/faostat/en/#data

Model code and software

geoschem/geos-chem: GEOS-Chem 12.9.3 (12.9.3) The International GEOS-Chem User Community https://doi.org/10.5281/zenodo.3974569

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Short summary

We quantify global ammonia (NH₃) emissions over the period from 2008 to 2018 using an improved fast top-down method that incorporates Infrared Atmospheric Sounding Interferometer (IASI) satellite observations and GEOS-Chem atmospheric chemical simulations. The top-down analysis finds a global total NH₃ emission that is 30 % higher than the bottom-up estimate, largely reconciling a large discrepancy of more than a factor of 2 found in previous top-down studies using the same satellite data.