Seasonal and interannual variability of atmospheric ammonia over Guatemala driven by land use, biomass burning, and meteorological circulation

Saravia, Christian; Saravia, Pedro; Trachte, Katja

doi:10.5194/acp-26-12111-2026

Articles | Volume 26, issue 16

https://doi.org/10.5194/acp-26-12111-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-12111-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 16

Research article

|

26 Aug 2026

Research article |

| 26 Aug 2026

Seasonal and interannual variability of atmospheric ammonia over Guatemala driven by land use, biomass burning, and meteorological circulation

Christian Saravia, Pedro Saravia, and Katja Trachte

Supplement

https://doi.org/10.5194/acp-26-12111-2026-supplement

Data sets

ERA5 monthly averaged data on single levels from 1940 to present Copernicus Climate Change Service https://doi.org/10.24381/cds.f17050d7

MODIS/Terra+Aqua Burned Area Monthly L3 Global 500m SIN Grid V061 L. Giglio et al. https://doi.org/10.5067/MODIS/MCD64A1.061

CAMS global reanalysis (EAC4) Copernicus Atmosphere Monitoring Service https://doi.org/10.24381/d58bbf47

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Short summary

This study analyzes atmospheric ammonia in Guatemala using satellite data, fire records, land-use maps, and weather data from 2015–2023. Results show that agricultural activities contribute to persistent background ammonia levels, while seasonal fires trigger short-term increases intensified by warm, dry conditions. These findings identify pollution hotspots and improve understanding of air quality and nitrogen pollution in Central America.