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Title: 尾瀬地域におけるアカシボの発達過程
Other Titles: Developmental stages of spring red snow phenomenon “Akashibo” at the Ozegahara district, Central Japan
Authors: 福原, 晴夫1 Browse this author
木村, 直哉2 Browse this author
北村, 淳3 Browse this author
落合, 正宏4 Browse this author
山本, 鎔子5 Browse this author →KAKEN DB
林, 卓志6 Browse this author
大高, 明史7 Browse this author
小島, 久弥8 Browse this author →KAKEN DB
福井, 学9 Browse this author →KAKEN DB
菊地, 義昭10 Browse this author →KAKEN DB
野原, 精一11 Browse this author →KAKEN DB
Authors(alt): Fukuhara, Haruo1
Kimura, Naoya2
Kitamura, Jun3
Ochiai, Masahiro4
Yamamoto, Yoko5
Hayashi, Takashi6
Ohtaka, Akifumi7
Kojima, Hisaya8
Fukui, Manabu9
Kikuchi, Yoshiaki10
Nohara, Seiichi11
Keywords: アカシボ
Ozegahara Mire
Lake Ozenuma
red snow
soil-snow interface
Issue Date: 31-Mar-2012
Publisher: 北海道大学低温科学研究所
Journal Title: 低温科学
Journal Title(alt): Low Temperature Science
Volume: 70
Start Page: 37
End Page: 47
Abstract: 尾瀬地域では尾瀬ヶ原と尾瀬沼に大規模なアカシボが発生する. 尾瀬ヶ原では融雪の後期に雪原表面が赤褐色に彩色し, 次第に濃さを増していく. この発達段階を雪コアーの肉眼的観察から(1)アカシボ初期(Stage 1;雪原表面は白, アカシボ雪が積雪の半分以下), (2)アカシボ中期(Stage 2;雪原表面は白またはわずかに赤色, アカシボ雪は積雪の半分以上), (3)アカシボ最盛期(Stage 3;積雪全体がアカシボ雪, プール形成), (4)アカシボ終期(Stage 4;浮遊状態や植物体, 土壌表面(底泥)に付着する), (5)アカシボ残存期(Stage 4;アカシボ残存物が土壌表面に存在する)に分けて整理した. 尾瀬沼においては融雪水と湖水位の上昇により, アカシボを含んだ氷雪が湖面に浮上するため, stageは明確ではないが, 同様に発達をすると考えられる.
A large scale of red snow phenomena “Akashibo”appeared at Ozegahara Mire and Lake Ozenuma in Oze District during snow melting period. Five developmental stages of Akashibo are classified. (1)The first stage (Stage 1;white snow surface, the lower half of the snow depth colored reddish), (2) the middle stage (Stage 2; white snow surface or faintly colored,strongly red in the lower section (above about half of the snow accumulation), (3)the peak stage (Stage 3;entire snow patches are dark-red),(4)the end stage (Stage 4;accumulation of fresh Akashibo substances on soils or dead plants) and (5) the residual stage (Stage 5; Akashibo substances remaining on soils to fall). Development of Akashibo at Lake Ozenuma seemed to be essentially same as Ozegahara Mire, but showed unclear stages, because of rising lake water level.
Type: bulletin (article)
Appears in Collections:低温科学 = Low Temperature Science > 第70巻

Submitter: 低温科学研究所図書室

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