Global emissions and abundances of chemically and radiatively important trace gases from the AGAGE network
Name
essd-17-6557-2025.pdf
Description
Published version
Size
3.75 MB
Format
Adobe PDF
Checksum (MD5)
d66fa26a4472e166444de1b562293501
Author(s)
Western, Luke M
Rigby, Matthew
Mühle, Jens
Krummel, Paul B
Lunder, Chris R
O'Doherty, Simon
Reimann, Stefan
Vollmer, Martin K
Young, Dickon
Adam, Ben
Date Issued
November 27, 2025
Journal
Earth System Science Data
Publisher
Copernicus GmbH
Citation
Western, L. M., Rigby, M., Mühle, J., Krummel, P. B., Lunder, C. R., O'Doherty, S., Reimann, S., Vollmer, M. K., Young, D., Adam, B., Fraser, P. J., Ganesan, A. L., Harth, C. M., Hermansen, O., Kim, J., Langenfelds, R. L., Loh, Z. M., Mitrevski, B., Pitt, J. R., Salameh, P. K., Schmidt, R., Stanley, K., Stavert, A. R., Wang, H.-J., Weiss, R. F., and Prinn, R. G.: Global emissions and abundances of chemically and radiatively important trace gases from the AGAGE network, Earth Syst. Sci. Data, 17, 6557–6582.
Version
Final published version
Abstract
Measurements from the Advanced Global Atmospheric Gases Experiment (AGAGE) combined with a global 12-box model of the atmosphere have long been used to estimate global emissions and surface mean mole fraction trends of atmospheric trace gases. Here, we present annually updated estimates of these global emissions and mole fraction trends for 42 compounds through 2023 measured by the AGAGE network, including chlorofluorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, nitrogen trifluoride, methane, nitrous oxide, and selected other compounds. The data sets are available at https://doi.org/10.5281/zenodo.15372480 (Western et al., 2025). We describe the methodology to derive global mole fraction and emissions trends, which includes the calculation of semihemispheric monthly mean mole fractions, the mechanics of the 12-box model and the inverse method that is used to estimate emissions from the observations and model. Finally, we present examples of the emissions and mole fraction data sets for the 42 compounds.
MIT Department
Massachusetts Institute of Technology. Center for Global Change Science
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.5194/essd-17-6557-2025
