Particle Size Distribution Analysis of Mineral Dust in Polar Snow Using a Coulter Counter
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- Particle Size Distribution Analysis of Mineral Dust in Polar Snow Using a Coulter Counter
- Kang, Jung-Ho
Hur, Soon Do
- Mineral dust; Snow; Coulter counter; Antarctica; Greenland
- Issue Date
- Kang, Jung-Ho., et al. 2014. Particle Size Distribution Analysis of Mineral Dust in Polar Snow Using a Coulter Counter. Ocean and Polar Reseach, 34(4): 319-326.
- Mineral dust in the polar snow plays an important role both in the climate system of the Earth and
in global biogeochemical cycles. Analysis of the concentration and the particle size distribution of mineral
dust has been carried out in the snow from the Antarctic surface snow and the Greenland snowpit. Among the
various particle size determination techniques, a Multisizer 3 Coulter Counter in a class 100 clean bench
counted all particles between 1.1 and 30.0 μm with a 50 μm aperture tube. The aperture tube size, the
concentration of electrolytes and the accuracy of the particle size distribution were determined in this study.
The number concentrations from the Antarctic surface snow were 81,843 particles mL1, but those from the
Greenland snowpit were 10,666 particles mL1. In the volume distribution, the distributions of mineral dust
in both the Antarctic surface snow and the Greenland snowpit showed lognormal distribution in the size
interval 1.1 to 6.0 μm with the mode, 3.562 and 3.836 μm, respectively. The analysis technique using a
coulter counter for mineral dust could be used for reconstructing paleoclimates from polar ice cores.
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