Spatial variability of chemical tracers in surface snow along the traverse route from the coast to 1000 km inland at east Dronning Maud Land, Antarctica

作     者：Toshitaka Suzuki Yoshinori Iizuka Teruo Furukawa Kenichi Matsuoka Kokichi Kamiyama Okitsugu Watanabe 

作者机构：Yamagata University Kojirakawa cho 1-chomeNational Institute of Polar ResearchKaga 1-chomeNational Institute of Polar ResearchKaga 1-chomeInstitute of Low Temperature Science Hokkaido UniversityNational Institute of Polar ResearchKaga 1-chomeNational Institute of Polar ResearchKaga 1-chome Yamagata 990-8560 Itabashi kuTokyo 173-8515 Itabashi kuTokyo 173-8515 Kita-19 Nishi-8 Kita-ku Sapporo 060-0819Itabashi kuTokyo 173-8515 Itabashi kuTokyo 173-8515 

出 版 物：《Chinese Journal of Polar Science》 (极地研究（英文版）)

年 卷 期：2003年第14卷第1期

页      面：48-56页

学科分类：09[农学] 0903[农学-农业资源与环境] 

主　　题：Antarctica snow chemistry spatial variability atmospheric transport. 

摘      要：We measured the spatial variability of Cl -, Na +, SO 2- 4, NO - 3 and 7Be concentrations in snow cover along the traverse 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 200 km inland. Between 200 1000 km inland, the concentrations of Na + were nearly constant. On the other hand, the concentrations of Cl - increased with distance beyond 750 km 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 2- 4, 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.