Articles | Volume 23, issue 19
https://doi.org/10.5194/bg-23-6857-2026
https://doi.org/10.5194/bg-23-6857-2026
Research article
 | 
05 Oct 2026
Research article |  | 05 Oct 2026

Variations in Arctic aerosol iron solubility in relation to leaching methodology, air mass characteristics, and seasonality

Chris M. Marsay, Alina M. Ebling, Peter L. Morton, William M. Landing, and Clifton S. Buck

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Cited articles

Achterberg, E. P., Moore, C. M., Henson, S. A., Steigenberger, S., Stohl, A., Eckhardt, S., Avendano, L. C., Cassidy, M., Hembury, D., Klar, J. K., Lucas, M. I., Macey, A. I., Marsay, C. M., and Ryan-Keogh, T. J.: Natural iron fertilization by the Eyjafjallajökull volcanic eruption, Geophys. Res. Lett., 40, 921–926, https://doi.org/10.1002/grl.50221, 2013. 
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AMAP: AMAP Arctic Climate Change Update 2021: Key Trends and Impacts, Arctic Monitoring and Assessment Programme (AMAP), Tromso, Norway, viii + 148 pp., ISBN 978-82-7971-201-5, 2021. 
Ardyna, M., Hamilton, D. S., Harmel, T., Lacour, L., Bernstein, D. N., Laliberté, J., Horvat, C., Laxenaire, R., Mills, M. M., van Dijken, G., Polyakov, I., Claustre, H., Mahowald, N., and Arrigo, K. R.: Wildfire aerosol deposition likely amplified a summertime Arctic phytoplankton bloom, Commun. Earth Environ., 3, 201, https://doi.org/10.1038/s43247-022-00511-9, 2022. 
Baker, A. R. and Croot, P. L.: Atmospheric and marine controls on aerosol iron solubility in seawater, Mar. Chem., 120, 4–13, https://doi.org/10.1016/j.marchem.2008.09.003, 2010. 
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Short summary
Solubility of the micronutrient, iron, was measured in Arctic aerosols collected during the GEOTRACES GN01 section (summer 2015). Solubility is compared across three different methods and used to estimate the atmospheric input of bioavailable iron to the Arctic Ocean. Variations in solubility are described in terms of air mass characteristics. Combining this dataset with winter/spring aerosol iron data from another project, we assess the seasonality of aerosol iron solubility in the Arctic.
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