霜結晶による積雪表層の安定同位体分別過程

八久保, 晶弘; 橋本, 重将; 中尾, 正義; 本山, 秀明; 鈴木, 啓助; 西村, 浩一

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霜結晶による積雪表層の安定同位体分別過程

https://kitami-it.repo.nii.ac.jp/records/8596

	名前 / ファイル	ライセンス	アクション
	八久保ほか(2000)雪氷 (4.2 MB)

Item type

学術雑誌論文 / Journal Article(1)

公開日

2018-02-09

タイトル

言語

タイトル

霜結晶による積雪表層の安定同位体分別過程

タイトル

言語

タイトル

Isotopic mass fractionation of surface snow due to hoarfrost formation

言語

jpn

キーワード

主題Scheme

Other

主題

安定同位体

キーワード

主題Scheme

Other

主題

表層霜

キーワード

主題Scheme

Other

主題

しもざらめ雪

キーワード

言語

主題Scheme

Other

主題

stable isotope

キーワード

言語

主題Scheme

Other

主題

surface hoar

キーワード

言語

主題Scheme

Other

主題

depth hoar

資源タイプ

資源

http://purl.org/coar/resource_type/c_6501

タイプ

journal article

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

著者

八久保, 晶弘

WEKO 89765
KAKEN - 研究者検索 50312450

ja	八久保, 晶弘

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橋本, 重将
中尾, 正義
本山, 秀明
鈴木, 啓助
西村, 浩一

著者別名

姓名

HACHIKUBO, Akihiro

言語

著者別名

姓名

HASHIMOTO, Shigemasa

言語

著者別名

姓名

NAKAWO, Masayoshi

言語

著者別名

姓名

MOTOYAMA, Hideaki

言語

著者別名

姓名

SUZUKI, Keisuke

言語

著者別名

姓名

NISHIMURA, Kouichi

言語

抄録

内容記述タイプ

Abstract

内容記述

1996年3月, 北海道内にて積雪表層のサンプリングを行ない, 放射冷却時の酸素同位体比 (δ18O) とイオン濃度の変化を測定した.観測結果からは, 夜間は表面霜としもざらめ雪が発達して積雪表層のδ18Oが減少し, これに対して昇華蒸発の卓越する日中はδ18Oが増加する傾向がみられた.観測期間中のある晩のイオン濃度と昇華量の測定データから積雪表層での質量収支を計算した結果, 表面霜のδ18Oは積雪表層のそれより相対的に6‰ほど小さかったのに対し, しもざらめ雪のδ18Oは誤差の範囲で周囲とほとんど変わらなかった.一方, 積雪試料に約90℃m-1の温度勾配を11日間かけてしもざらめ雪を実験的に作り, その安定同位体比 (δDとδ18O) の変化量を求めた.その結果, 試料の高温側ではδ値が増加, 低温側では減少した.δD-δ18Oダイヤグラムの傾きは2.4から3.1と小さい値をとり, 氷の昇華現象においても動的同位体効果に支配されていることを示した.

書誌情報

ja : 雪氷
en : Journal of the Japanese Association of Snow and Ice

巻 62, 号 3, p. 265-277

ISSN

収録物識別子タイプ

ISSN

収録物識別子

03731006

書誌レコードID

収録物識別子タイプ

NCID

収録物識別子

AN00131221

出版者

The Japanese Society of Snow and Ice

著者版フラグ

値

publisher

出版タイプ

VoR

出版タイプResource

http://purl.org/coar/version/c_970fb48d4fbd8a85

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霜結晶による積雪表層の安定同位体分別過程

× 八久保, 晶弘

× 橋本, 重将

× 中尾, 正義

× 本山, 秀明

× 鈴木, 啓助

× 西村, 浩一

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