Effects of temperature and grain type on time variation of snow specific surface area

HACHIKUBO, Akihiro; YAMAGUCHI, Satoru; ARAKAWA, Hayato; TANIKAWA, Tomonori; HORI, Masahiro; SUGIURA, Konosuke; MATOBA, Sumito; NIWANO, Masashi; KUCHIKI, Katsuyuki; AOKI, Teruo

Effects of temperature and grain type on time variation of snow specific surface area

HACHIKUBO, Akihiro; YAMAGUCHI, Satoru; ARAKAWA, Hayato et al.

Bulletin of Glaciological Research, 2014, 32, 47-53

Permalink : https://hdl.handle.net/2115/56973

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アクセス権	open access
URI	https://hdl.handle.net/2115/56973
タイトル	Effects of temperature and grain type on time variation of snow specific surface area
タイトル	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
著者	HACHIKUBO, Akihiro ; YAMAGUCHI, Satoru ; ARAKAWA, Hayato ; TANIKAWA, Tomonori ; HORI, Masahiro ; SUGIURA, Konosuke ; MATOBA, Sumito ; NIWANO, Masashi ; KUCHIKI, Katsuyuki ; AOKI, Teruo
e-Rad_Researcher 50312450 著者名 HACHIKUBO, Akihiro 八久保, 晶弘
e-Rad_Researcher 70425510 著者名 YAMAGUCHI, Satoru 山口, 悟
著者名 ARAKAWA, Hayato 荒川, 逸人
著者名 TANIKAWA, Tomonori 谷川, 朋範
著者名 HORI, Masahiro 堀, 雅裕
著者名 SUGIURA, Konosuke 杉浦, 幸之助
e-Rad_Researcher 30391163 著者名 MATOBA, Sumito 的場, 澄人
e-Rad_Researcher 10515026 著者名 NIWANO, Masashi 庭野, 匡思
e-Rad_Researcher 80442739 著者名 KUCHIKI, Katsuyuki 朽木, 勝幸
e-Rad_Researcher 30354492 著者名 AOKI, Teruo 青木, 輝夫
言語	英語
キーワード	SSA
	BET theory
	gas adsorption
	methane
	BET理論
	ガス吸着
	メタン
発行日	2014-08
出版者	The Japanese Society of Snow and Ice
出版者	日本雪氷学会
収録物名	Bulletin of Glaciological Research
巻(号)	32
ページ	47-53
抄録	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.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1345-3807
EISSN	1884-8044
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.5331/bgr.32.47