Ratios of Mg²⁺/Na⁺ in the snow cover at Murododaira, Mt. Tateyama, Japan: On the possibility of an indicator of chemical leaching（立山・室堂平における積雪中のMg²⁺/Na⁺比：化学溶脱の指標の可能性について）

• WATANABE Koichi（渡辺幸一）

  Toyama Prefectural University

• HIRAI Taiki（平井泰貴）

  Toyama Prefectural University

• KAWADA Kunio（川田邦夫）

  University of Toyama

書誌事項

タイトル別名

• Ratios of Mg²⁺/Na⁺ in the snow cover at Murododaira, Mt. Tateyama, Japan: On the possibility of an indicator of chemical leaching

抄録

Measurements of the concentrations of major ions in the snow pits at Murododaira (altitude, 2,450m), Mt. Tateyama, near the coast of the Japan Sea in Central Japan, have been taken each April.　Snowmelt usually occurs after May near the summit of Mt. Tateyama.　However, the snow wall in the 2004 pit was mainly composed of melt forms (granular snow), and snow temperature was 0°C in all layers;therefore, the chemical components in the snow were affected by leaching.　Many samples taken from the 2004 pit showed that the ratio of Mg²⁺/Na⁺ was lower than that in sea salt, whereas the loss of Mg²⁺ has hardly been observed in the snow cover at Murododaira in other years.　The results suggest that the Mg²⁺/Na⁺ ratio can be used as an indicator of the leaching of chemical compositions in a snowpack, such as a boring core, at an Alpine site in Japan.

収録刊行物

• 氷河情報センター

  氷河情報センター 33 (0), 1-5, 2015

  公益社団法人 日本雪氷学会

キーワード

• Mt. Tateyama（立山）
• snow pit（積雪断面）
• leaching（溶脱）
• Mg²⁺/Na⁺（Mg²⁺/Na⁺）
• loss of Mg²⁺（Mg²⁺の消失）

詳細情報

• CRID: 1390282679643788928
• NII論文ID: 130005094027
• DOI: 10.5331/bgr.33.1
• ISSN: 18848044
• ISSN: 13453807
• Web Site: https://www.jstage.jst.go.jp/article/bgr/33/0/33_1/_pdf
• 本文言語コード: en
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