Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 16
Articles | Volume 26, issue 16
https://doi.org/10.5194/acp-26-11875-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-11875-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 16
Research article
 | 
21 Aug 2026
Research article |  | 21 Aug 2026

Characterizing the global tropospheric budget of oxidized nitrogen (NOy)

Ishir Dutta, Colette L. Heald, Ilann Bourgeois, John D. Crounse, Eric J. Hintsa, Fred L. Moore, and Jeff Peischl

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Short summary
This study presents a global budget of tropospheric reactive oxidized nitrogen (NOy) based on the GEOS‑Chem chemical transport model evaluated against ATom aircraft observations. In addition to burdens, deposition, and lifetimes, we detail the magnitudes of the chemical fluxes governing cycling between NOy species, including uncertain heterogeneous processes such as aerosol nitrate photolysis and organic nitrate hydrolysis.
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