A 320 k-year record of microparticles in the Dome Fuji, Antarctica ice core measured by laser-light scattering (scientific paper)

元データ 国立極地研究所

概要

A laser-light scattering method was evaluated from the viewpoint of the measurement ability of concentration and size distribution of microparticles in molten ice core samples. It was demonstrated that analysis can be performed with 10 % accuracy by diluting the sample with ultrapure water by 50 times to eliminate coincidence loss. Using this method, the concentration and size distribution of microparticles were determined on 2829 samples from a 2503 m deep ice core drilled at Dome Fuji, Antarctica. The present paper shows the profiles of number and volume concentrations through the whole depth and the changes in the size distribution through three glacial cycles in the past 320 k-years.

著者

藤井 理行 国立極地研究所
Watanabe Okitsugu National Institute of Polar Research, Research Organization of Information and Systems
Fujii Yoshiyuki National Institute of Polar Research, Research Organization of Information and Systems
KOHNO Mika National Institute of Polar Research
Watanabe O National Institute Of Polar Research Research Organization Of Information And Systems
Watanabe Okitsugu National Institute Of Polar Research
Kohno M National Inst. Polar Res. Tokyo Jpn
Motoyama Hideaki National Institute Of Polar Research
Matoba Sumito National Institute Of Polar Research
Matoba Sumito Institute Of Low Temperature Science Hokkaido University
Matoba Sumito The Graduate University For Advanced Studies
Fujii Yoshiyuki National Institute Of Polar Research
Watanabe Okitsusgu National Institute of Polar Research
Fujii Y National Inst. Polar Res. Tokyo
Motoyama Hideaki National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn

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