Articles | Volume 25, issue 12
https://doi.org/10.5194/acp-25-6365-2025
https://doi.org/10.5194/acp-25-6365-2025
Research article
 | 
26 Jun 2025
Research article |  | 26 Jun 2025

Increase in carbon monoxide (CO) and aerosol optical depth (AOD) observed by satellites in the Northern Hemisphere over the summers of 2008–2023, linked to an increase in wildfires

Antoine Ehret, Solène Turquety, Maya George, Juliette Hadji-Lazaro, and Cathy Clerbaux

Related authors

Transcontinental transport of a massive SO2 plume from the Tehran refinery explosion in March 2026 observed from space
Shangyi Liu, Cathy Clerbaux, Anne Boynard, Mingjian Gu, Chengli Qi, Bruno Franco, Lieven Clarisse, Shan Han, Mengya Sheng, Nicolas Theys, and Zhao-Cheng Zeng
EGUsphere, https://doi.org/10.5194/egusphere-2026-5017,https://doi.org/10.5194/egusphere-2026-5017, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
A 19-year record of atmospheric sulphur dioxide (SO2) derived from IASI measurements
Lieven Clarisse, Bruno Franco, Lorenzo Fabris, Nicolas Theys, Juliette Hadji-Lazaro, Daniel Hurtmans, Cathy Clerbaux, and Pierre Coheur
Earth Syst. Sci. Data, 18, 6667–6706, https://doi.org/10.5194/essd-18-6667-2026,https://doi.org/10.5194/essd-18-6667-2026, 2026
Short summary
Assessing Earth's skin temperature trends: consistent signals from IASI, MODIS, ESA CCI and ERA5
Sarah Safieddine, Selviga Sinnathamby, Juliette Hadji-Lazaro, Marie Doutriaux-Boucher, Darren Ghent, Simon Whitburn, Lieven Clarisse, and Cathy Clerbaux
Earth Obs., 1, 59–75, https://doi.org/10.5194/eo-1-59-2026,https://doi.org/10.5194/eo-1-59-2026, 2026
Short summary
Contrasting air pollution and surface temperature trends in South and East Asia: satellite observations and CMIP6 simulations assessment
Selviga Sinnathamby, Sarah Safieddine, Anne Boynard, Juliette Hadji-Lazaro, Solène Turquety, Simon Whitburn, Lieven Clarisse, Marie Doutriaux-Boucher, Pierre Coheur, and Cathy Clerbaux
EGUsphere, https://doi.org/10.5194/egusphere-2026-4393,https://doi.org/10.5194/egusphere-2026-4393, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Geostationary observations of atmospheric ammonia over East Asia: spatio-temporal variations revealed by three years of FY-4B/GIIRS measurements
Mengya Sheng, Runyi Zhou, Jiancong Hua, Shan Han, Shangyi Liu, Lin Zhang, Wei Wang, Ruijun Dang, Hansen Cao, Zichong Chen, Yixuan Gu, Mingxu Liu, Lu Lee, Chengli Qi, Feng Lu, Changpei Han, Mark W. Shephard, Nadir Guendouz, Camille Viatte, Lieven Clarisse, Martin Van Damme, Cathy Clerbaux, and Zhao-Cheng Zeng
Atmos. Chem. Phys., 26, 7803–7826, https://doi.org/10.5194/acp-26-7803-2026,https://doi.org/10.5194/acp-26-7803-2026, 2026
Short summary

Cited articles

AC SAF: IASI Carbon Monoxide Profiles FORLI-CO Climate Data Record Release 1 – Metop-A and -B, EUMETSAT SAF on Atmospheric Composition Monitoring [data set], https://doi.org/10.15770/EUM_SAF_AC_0047, 2024. a, b
Aguilera, R., Corringham, T., Gershunov, A., and Benmarhnia, T.: Wildfire smoke impacts respiratory health more than fine particles from other sources: observational evidence from Southern California, Nat. Commun., 12, 1493, https://doi.org/10.1038/s41467-021-21708-0, 2021. a
Albores, I., Buchholz, R., Ortega, I., Emmons, L., Hannigan, J., Lacey, F., Pfister, G., Tang, W., and Worden, H.: Continental-scale Atmospheric Impacts of the 2020 Western U.S. Wildfires, Atmos. Environ., 294, 119436, https://doi.org/10.1016/j.atmosenv.2022.119436, 2023. a
Andela, N., Morton, D. C., Giglio, L., Chen, Y., van der Werf, G. R., Kasibhatla, P. S., DeFries, R. S., Collatz, G. J., Hantson, S., Kloster, S., Bachelet, D., Forrest, M., Lasslop, G., Li, F., Mangeon, S., Melton, J. R., Yue, C., and Randerson, J. T.: A Human-Driven Decline in Global Burned Area, Science, 356, 1356–1362, https://doi.org/10.1126/science.aal4108, 2017. a
Andreae, M. O.: Emission of trace gases and aerosols from biomass burning – an updated assessment, Atmos. Chem. Phys., 19, 8523–8546, https://doi.org/10.5194/acp-19-8523-2019, 2019. a
Download
Short summary
Biomass burning has a considerable effect on the chemical composition of the atmosphere and climate, due to the emission of trace gases and aerosols. We examine the relationship between fire variability and the values of carbon monoxide and aerosol optical depth observed by satellites. The observed increase in wildfires has led to a corresponding rise in the mean and extreme values of carbon monoxide and aerosol optical depth during the summer and early autumn across the Northern Hemisphere.
Share
Altmetrics
Final-revised paper
Preprint