FLUCTUATION OF δ^<18>O OF SURFACE SNOW WITH SURFACE HOAR AND DEPTH HOAR FORMATION UNDER RADIATIVE COOLING

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概要

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• δ^<18>O and major ions of the snow surface layer were measured during hoarfrost formation. In the nighttime, δ^<18>O decreased when surface hoar and depth hoar crystals formed above and beneath the snow surface, respectively, while δ^<18>O increased due to evaporation in the daytime. These results suggested that H_2^<16>O was enriched by condensation of the hoar crystals, whereas H_2^<18>O was concentrated on the snow surface by the evaporation of light H_2O to the atmosphere. Concentrations of major ions were observed to change as well according to condensation and evaporation of water vapor. δ^<18>O of hoar crystals condensed on March 5 to 6 was estimated to be approximately 5‰ lower than that of the original surface layer.

• 国立極地研究所の論文

著者

• 八久保 晶弘

  北見工業大学未利用エネルギー研究センター

• 八久保 晶弘

  北大低温研

• Motoyama Hideaki

  National Institute Of Polar Research

• Suzuki Keisuke

  Department of Environmental Sciences, Shinshu University

• 八久保 晶弘

  北見工業大学

• HACHIKUBO Akihiro

  Institute of Low Temperature Science, Hokkaido University

• AKITAYA Eizi

  Institute of Low Temperature Science, Hokkaido University

• Akitaya Eizi

  Institute Of Low Temperature Science Hokkaido University

• Suzuki Keisuke

  Department Of Electrical And Electronic Engineering Niigata University

• Suzuki Keisuke

  Department Of Chemistry Tokyo Institute Of Technology

• Suzuki K

  Institute For Hydrospheric-atmospheric Sciences Nagoya University

• Motoyama Hideaki

  National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn

• Suzuki Keisuke

  Department Of Chemistry Keio University

• Suzuki Keisuke

  Department Of Environmental Sciences Faculty Of Science Shinshu University

• Suzuki Keisuke

  Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University

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