Articles | Volume 14, issue 5
Clim. Past, 14, 601–608, 2018
https://doi.org/10.5194/cp-14-601-2018
Clim. Past, 14, 601–608, 2018
https://doi.org/10.5194/cp-14-601-2018

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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Latest update: 03 Mar 2021
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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.