Stratigraphy and ice grains of a 25.3m ice core from Sofiyskiy Glacier, Russian Altai Mountains, in 2001

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概要

• 論文の詳細を見る

• This paper focuses on results of visual stratigraphy and ice grain analysis of a 25.3m ice core from Sofiyskiy Glacier, Russian Altai Mountains, recovered in July 2001. It was found that the ice core consists of firn, icy granular firn, ice layer, infiltration-recrystalization ice and infiltration ice. Infiltration ice consisted of thick ice layer with large ice grains of 5 to 10 mm and sparse air bubbles, and infiltration-recrystalization ice consisted of small ice grains of 1 to 2mm. Volume percentages of the ice layer and infiltration ice are considered as an index of snow melting at the surface. It was also found that ice layer and infiltration ice are frequently observed at 7m, 13.5 to 16m, 18 to 19m and 21.5 to 23.5m in depths, suggesting warmer summers within several years when snow/ice at present depths was near the surface taking account of percolation of melt water.

• 日本雪氷学会の論文

著者

• Ponomarev I

  Altai State Univ. Barnaul Rus

関連論文

• ロシア・アルタイ山脈ソフィスキー氷河で2001年に掘削した25.3mコアの層位と粒径
• Seasonality of isotopic and chemical species and biomass burning signals remaining in wet snow in the accumulation area of Sofiyskiy Glacier, Russian Altai Mountains
• Stratigraphy and ice grains of a 25.3m ice core from Sofiyskiy Glacier, Russian Altai Mountains, in 2001

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