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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 5
Clim. Past, 14, 601–608, 2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Clim. Past, 14, 601–608, 2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 03 May 2018

Research article | 03 May 2018

Particle shape accounts for instrumental discrepancy in ice core dust size distributions

Marius Folden Simonsen et al.

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Cited articles

Bigler, M., Svensson, A., Kettner, E., Vallelonga, P., Nielsen, M. E., and Steffensen, J. P.: Optimization of high-resolution continuous flow analysis for transient climate signals in ice cores, Environ. Sci. Technol., 45, 4483–4489, 2011.
Biscaye, P., Grousset, F., Revel, M., Van der Gaast, S., Zielinski, G., Vaars, A., and Kukla, G.: Asian provenance of glacial dust (stage 2) in the Greenland Ice Sheet Project 2 ice core, Summit, Greenland, J. Geophys. Res.-Ocean., 102, 26765–26781, 1997.
Bory, A. J.-M., Biscaye, P. E., Piotrowski, A. M., and Steffensen, J. P.: Regional variability of ice core dust composition and provenance in Greenland, Geochem. Geophy. Geosy., 4, 1107,, 2003.
Brazitikos, S., Giannopoulos, A., Valettas, P., and Vritsiou, B.: Geometry of Isotropic Convex Bodies: Mathematical Surveys and Monographs, Am. Math. Soc., 2014.
Centre for Ice and Climate: Data, icesamples and software,, 2018.
Publications Copernicus
Short summary
Ice core dust size distributions are more often measured today by an Abakus laser sensor than by the more technically demanding but also very accurate Coulter counter. However, Abakus measurements consistently give larger particle sizes. We show here that this bias exists because the particles are flat and elongated. Correcting for this gives more accurate Abakus measurements. Furthermore, the shape of the particles can be extracted from a combination of Coulter counter and Abakus measurements.
Ice core dust size distributions are more often measured today by an Abakus laser sensor than by...