Articles | Volume 19, issue 3
https://doi.org/10.5194/tc-19-1373-2025
https://doi.org/10.5194/tc-19-1373-2025
Research article
 | 
27 Mar 2025
Research article |  | 27 Mar 2025

What does the impurity variability at the microscale represent in ice cores? Insights from a conceptual approach

Piers Larkman, Rachael H. Rhodes, Nicolas Stoll, Carlo Barbante, and Pascal Bohleber

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Cited articles

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Barnes, P., Wolff, E., Mader, H., Udisti, R., Castellano, E., and Röthlisberger, R.: Evolution of chemical peak shapes in the Dome C, Antarctica, ice core, J. Geophys. Res., 108, 4126, https://doi.org/10.1029/2002JD002538, 2003. a
Bendel, V., Ueltzhöffer, K., Freitag, J., Kipfstuhl, S., Kuhs, W., Garbe, C., and Faria, S.: High-resolution variations in size, number and arrangement of air bubbles in the EPICA DML (Antarctica) ice core, J. Glaciol., 59, 972–980, https://doi.org/10.3189/2013JoG12J245, 2013. a
Bohleber, P., Roman, M., Šala, M., and Barbante, C.: Imaging the impurity distribution in glacier ice cores with LA-ICP-MS, J. Anal. At. Spectrom., 35, 2204–2212, https://doi.org/10.1039/D0JA00170H, 2020. a, b, c
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Short summary
Impurities in ice cores can be preferentially located at the boundaries between crystals of ice, impacting the interpretation of high-resolution data collected from ice core samples. Through use of a modelling framework, we demonstrate that one-dimensional signals can be significantly affected by this association, meaning high-resolution measurements must be carefully designed. Accounting for this effect is important for interpreting ice core data, especially for deep ice samples.
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