Outline of Japan-Russia joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains in 2000 and 2001
Outline of Japan-Russia joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains in 2000 and 2001
复制标题
2000年和2001年俄罗斯阿尔泰山索菲斯基冰川日俄联合冰川学研究概要
作者：
Y. Fujii;T. Kameda;F. Nishio;Keisuke Suzuki;M. Kohno;F. Nakazawa;J. Uetake;L. Savatyugin;S. Arkhipov;I. Ponomarev;N. Mikhailov;亀田 貴雄
本文重点介绍了日俄联合冰川研究于2000年7月15日至24日和2001年7月6日至17日在俄罗斯阿尔泰山索菲斯基冰川进行的野外活动。这次调查的目的是通过冰芯研究重建过去几十年的气候和环境记录。在Sofiyskiy冰川堆积区（北纬49°47'10，东经87°43'48；海拔3435 m），回收了3个深25.1 m、12.3 m和9 m的冰芯，并制作了2个深3和4.5 m的坑。最深 25.1 m 的核心将保存过去 10 至 20 年的环境记录。冰芯样本在研究地点被切割和融化，然后运往日本进行更详细的分析，如氧同位素、微粒、pH、阴离子、阳离子和细菌含量。核心由冷杉和冰层组成。结果发现，从地表到8m深度、16m到25m深度的钻孔温度均为0℃。 8 至 16 m 之间的温度为负值，最低温度为 10 m 深度（2000 钻孔为-0.1°C，2001 钻孔为-0.3°C）。还进行了气象观测。 2001年索菲斯基冰川考察后，对俄中蒙边境地区附近的冰川进行了勘察，并在两个地点采集了地表雪样本。
This paper focuses on field activity by the Japan-Russia Joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains carried out during 15-24 July 2000 and 6-17 July 2001. The purpose of this investigation was to reconstruct climate and environment records in the past few decades through ice core study. Three ice cores 25.1 m, 12.3 m and 9 m deep were recovered and two pits of 3 and 4.5 m deep were made on the accumulation area of Sofiyskiy Glacier (49°47'10N, 87°43' 48E; 3435 m a.s.l.). The deepest 25.1 m core will preserve the environmental record during the last 10 to 20 years. Ice core samples were cut and melted at the research site, and transported to Japan for more detailed analyses, such as oxygen isotopes, microparticles, pH, anions, cations and bacteria content. Cores consisted of firn and ice layers. It was found that the borehole temperature was 0°C from the surface to 8m depth and also from 16m to 25m depth. The temperature between 8 and 16 m was negative with the minimum at 10 m depth (-0.1°C for the 2000 borehole and -0.3°C for the 2001 borehole). Meteorological observations were also carried out. After the investigation on Sofiyskiy Glacier in 2001, reconnaissance survey of glaciers near the Russia-China-Mongolia border region was carried out and surface snow was sampled at two sites.
东北联邦大学（俄罗斯联邦）
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