Effects of temperature and grain type on time variation of snow specific surface area
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- HACHIKUBO Akihiro
- Environmental and Energy Resources Research Center, Kitami Institute of Technology
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- YAMAGUCHI Satoru
- Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Prevention
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- ARAKAWA Hayato
- YAGAI-KAGAKU Co., Ltd.
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- TANIKAWA Tomonori
- Earth Observation Research Center, Japan Aerospace Exploration Agency
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- HORI Masahiro
- Earth Observation Research Center, Japan Aerospace Exploration Agency
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- SUGIURA Konosuke
- Center for Far Eastern Studies, University of Toyama
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- MATOBA Sumito
- Institute of Low Temperature Science, Hokkaido University
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- NIWANO Masashi
- Meteorological Research Institute
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- KUCHIKI Katsuyuki
- Meteorological Research Institute
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- AOKI Teruo
- Meteorological Research Institute
Bibliographic Information
- Other Title
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- Effects of temperature and grain type on time variation of snow specific surface area（積雪比表面積の時間変化に及ぼす温度および雪質の影響）
Abstract
The specific surface area (SSA) of snow is of particular interest to researchers because SSA is strongly related to snow albedo and is a comparatively better indicator of snow’s complexity than grain size. The time variation of SSA for fresh snow samples was observed in the laboratory under isothermal conditions at 226 K and 254 K using the gas adsorption method and Brunauer-Emmett-Teller theory. The SSA of the snow samples decreased with time under isothermal metamorphism. The decrease in SSA was fitted with the logarithmic equation proposed by Legagneux et al. (2003), and adjustable parameters were obtained. The rate of decrease in SSA depended on the shape of the initial snow type and temperature. Dendritic snow samples exhibited large initial SSAs, and their SSAs decreased faster compared with those of fragmented (collected from drifting snow) and plate-like precipitation particles with relatively small initial SSAs. The rate of decrease in SSA was lower at 226 K than that at 254 K.
Journal
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- Bulletin of Glaciological Research
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Bulletin of Glaciological Research 32 (0), 47-53, 2014
THE JAPANESE SOCIETY OF SNOW AND ICE
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Keywords
Details 詳細情報について
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- CRID
- 1390001204664945792
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- NII Article ID
- 130004679720
- 120005472232
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- ISSN
- 18848044
- 13453807
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- HANDLE
- 2115/56973
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed