MINOR CHEMICAL CONSTITUENTS IN SNOW COVER ON MIZUHO PLATEAU, ANTARCTICA

元データ 国立極地研究所

概要

A good correlation between chemical compositions of falling snow and atmospheric aerosols is needed to obtain information on the ancient global and atmospheric environment from chemical study of polar ice. For this purpose, atmospheric aerosols and snow were sampled by members of JARE-29 (1988-1989). The samples were analyzed for MSA (methane sulfonic acid), CI, NO_3,SO_4,Na, K, Ca, Mg, and heavy metals (Al, Fe, Zn, Cu). The results showed a positive correlation between atmospheric aerosols and surface snow. The results of pit snow samples from Pt. A (altitude : 3000m, distance from sea coast : nearly 350km) showed that Na and Cl are high in winter and low in summer, while Zn is high in early winter and Al and Fe in late summer. Although Al and Fe are usually considered indicators of crustal materials, significant amounts of them and also Zn are contained as organic compounds and explain their high enrichment factors reported previously.

著者

Watanabe Okitsugu National Institute of Polar Research, Research Organization of Information and Systems
Watanabe Okitsugu National Institute Of Polar Research
Kawaguchi Sadao Nagaoka National College Of Technology
Shimohara Kimiko Kitami Institute of Technology
Kanamori Satoru Water Research Institute, Nagoya University
Kanamori Nobuko Water Research Institute, Nagoya University
Nishikawa Masataka National Institute for Environmental Studies
Kanamori Satoru Institute For Hydrospheric And Atmospheric Sciences Nagoya University
Kanamori Nobuko Atmospheric And Hydrospheric Research Institute Nagoya University
Kanamori Satoru Water Research Institute Nagoya University
Kanamori Nobuko National Institute Of Polar Research
Kanamori Satoru National Institute of Polar Research
Satow Kazuhide Nagoya Technical College
Shinbori K Hokkaido Univ. Sapporo
Nishikawa Masataka National Institute For Environment Studies
Kanamori Nobuko Water Research Institute Nagoya Univerisity

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