Articles | Volume 22, issue 15
https://doi.org/10.5194/acp-22-10375-2022
https://doi.org/10.5194/acp-22-10375-2022
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

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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.
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