Regional distribution of chemical tracers in snow cover along the route from S16 to Dome Fuji Station, east Dronning Maud Land, Antarctica

• Suzuki Toshitaka

  Yamagata University

• Iizuka Yoshinori

  The Graduate University for Advanced Studies

• Furukawa Teruo

  National Institute of Polar Research

• Matsuoka Kenichi

  Institute of Low Temperature Science, Hokkaido University

• Kamiyama Kokichi

  National Institute of Polar Research

• Watanabe Okitsugu

  National Institute of Polar Research

抄録

We show and discuss the regional distributions of Cl^-, Na^+, SO_4^2,NO_3 and ^7Be concentrations in snow cover along the route from S16 to Dome Fuji Station in east Dronning Maud Land, Antarctica. The concentrations of Cl and Na^+ at the coast exponentially decreased with distance from the coast up to 200km inland. Between 200-1000km inland, the concentrations of Na^+ were nearly constant. On the other hand, the concentrations of Cl increased with distance beyond 750km inland. Furthermore, the contribution factors between Cl and Na^+ decreased and the Cl/Na^+ ratio and the nssCl^-/Cl^- ratio increased toward the interior of the continent. These results indicate that sea salt aerosols are transported from the coastal region toward the inland region of the Antarctic continent, and that a source of Cl other than sea salt exists in the inland plateau of Antarctica. The concentrations of SO_4^2,NO_3 and ^7Be in snow were relatively high in the coastal region and the inland plateau region compared with those in the katabatic-wind region.

収録刊行物

• Polar meteorology and glaciology

  Polar meteorology and glaciology 15 133-140, 2001-11

  国立極地研究所

詳細情報

• CRID: 1572824501759416320
• NII論文ID: 110001068184
• NII書誌ID: AA1129795X
• ISSN: 13443437
• 本文言語コード: en
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