Superimposed ice in a cold glacier on the Tibetan Plateau

Koji FUJITA

doi:10.5331/seppyo.60.379

チベット高原の寒冷氷河における上積氷の研究

藤田耕史

著者情報

キーワード: チベット高原, 寒冷氷河, 再凍結, 上積氷, 質量収支

ジャーナルフリー

1998 年 60 巻 5 号 p. 379-385

DOI https://doi.org/10.5331/seppyo.60.379

詳細

発行日: 1998/09/15 受付日: 1998/06/30 J-STAGE公開日: 2009/08/07 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2009/08/07 訂正理由: - 訂正箇所: 引用文献情報訂正内容: Wrong : Ageta,Y.and Fujita,K.,1996:Characteristics of mass balance of summer-accumulation type glaciers in the Himalayas and Tibetan Plateau.Zeitschrift für Gletscherkunde und Glazialgeologie,32,61-65.
Ageta,Y.and Higuchi,K.,1984:Estimation of mass balance components of a summer-accumulation type glacier in the Nepal Himalaya, Geografiska Annaler,66A,249-255.
Ageta,Y.,Seko,K.,Fujita,K.,Pu,J.and Yao,T.,in press: Some aspects of mass balance of Xiao Dongkemadi Glacier in the Tanggula Mountains on Qingzang Plateau,1989-94.Cryosphere,3.
Baird,P.D.,Ward,W.H.and Orvig, S.,1952: The glaciological studies of the Baffin Island Expedition,1950,I,II. Journal of Glaciology,2,2-23.
Bazhev,A.B.,1973.Infiltration and run-off of melt water on glaciers.International Association of Scientific Hydrology Publication,95(Symposium at Cambridge - Hydrology of Glaciers),245-250.
Braithwaite,R.J.,Laternser,M.and Pfeffer,W.T.,1994: Variation of near-surface firn density in the lower accumulation area of the Greenland ice sheet, Pakitsoq, West Greenland. Journal of Glaciology,40,477-485.
Fujita,K.,Seko,K.,Ageta,Y,Pu,J.and Yao,T.,1996: Superimposed ice in glacier mass balance on the Tibetan Plateau.Journal of Glaciology,42,454-460.
Huang,M.,1990:On the temperature distribution of glaciers in China. Journal of Glaciology,36,210-216.
Huang,M.,Wang,Z. and Ren,J.,1982:On the temperature regime of continental-type glaciers in China.Journal of Glaciology, 28, 117-128.
IPCC, 1996: Climate Change 1995, The Science of Climate Change. Houghton, J. T., Meira Filho, L. G., Callander, B. A., Harris, N., Kattenberg, A. and Maskell, K. (eds.). Cambridge University Press, Cambridge, UK, 572p.
Koerner, R. M., 1970: Some observations of superimposition of ice on the Devon Island ice cap, N. W. T. Canada. Geografiska Annaler, 52A, 57-67.
Meier, M. F., 1984: Contribution of small glaciers to global sea level. Science, 226, 1418-1421.
Seko,K.,Pu,J.,Fujita,K.,Ageta,Y,Ohata,T.and Yao,T.,1994:Glaciological observation in the Tanggula Mts.,Tibetan Plateau. Bulletin of Glacier Research,12,57-67.
Trabant,D.C.and Mayo,L.R.,1985:Estimation and effects of meltwater refreezing on five glaciers in Alaska.Annals of Glaciology,6,113-117.
Ueno,K.,Endoh,T.,Ohata,T.,Yabuki,H.,Koike,T.,Koike,M.,Ohta,T.and Zhang,Y,1994:Characteristics of precipitation distribution in Tanggula, Monsoon,1993. Bulletin of Glacier Research,12,39-47.
Wakahama, G., Kuroiwa, D., Hasemi, T. and Benson, C. S.,1976: Field observations and experimental and theoretical studies on the superimposed ice of McCall Glacier, Alaska. Journal of Glaciology,16,135-150.

Right : Ageta,Y.and Fujita,K.,1996:Characteristics of mass balance of summer-accumulation type glaciers in the Himalayas and Tibetan Plateau.Zeitschrift für Gletscherkunde und Glazialgeologie,32,61-65.
Ageta,Y.and Higuchi,K.,1984:Estimation of mass balance components of a summer-accumulation type glacier in the Nepal Himalaya, Geografiska Annaler,66A,249-255.
Ageta,Y.,Seko,K.,Fujita,K.,Pu,J.and Yao,T.,in press: Some aspects of mass balance of Xiao Dongkemadi Glacier in the Tanggula Mountains on Qingzang Plateau,1989-94.Cryosphere,3.
Baird,P.D.,Ward,W.H.and Orvig, S.,1952: The glaciological studies of the Baffin Island Expedition,1950,I,II. Journal of Glaciology,2,2-23.
Bazhev,A.B.,1973.Infiltration and run-off of melt water on glaciers.International Association of Scientific Hydrology Publication,95(Symposium at Cambridge - Hydrology of Glaciers),245-250.
Braithwaite,R.J.,Laternser,M.and Pfeffer,W.T.,1994: Variation of near-surface firn density in the lower accumulation area of the Greenland ice sheet, Pakitsoq, West Greenland. Journal of Glaciology,40,477-485.
Fujita,K.,Seko,K.,Ageta,Y,Pu,J.and Yao,T.,1996: Superimposed ice in glacier mass balance on the Tibetan Plateau.Journal of Glaciology,42,454-460.
Huang,M.,1990:On the temperature distribution of glaciers in China. Journal of Glaciology,36,210-216.
Huang,M.,Wang,Z. and Ren,J.,1982:On the temperature regime of continental-type glaciers in China.Journal of Glaciology, 28, 117-128.
IPCC, 1996: Climate Change 1995, The Science of Climate Change. Houghton, J. T., Meira Filho, L. G., Callander, B. A., Harris, N., Kattenberg, A. and Maskell, K. (eds.). Cambridge University Press, Cambridge, UK, 572p.
Koerner, R. M., 1970: Some observations of superimposition of ice on the Devon Island ice cap, N. W. T. Canada. Geografiska Annaler, 52A, 57-67.
Meier, M. F., 1984: Contribution of small glaciers to global sea level. Science, 226, 1418-1421.
Seko,K.,Pu,J.,Fujita,K.,Ageta,Y,Ohata,T.and Yao,T.,1994:Glaciological observation in the Tanggula Mts.,Tibetan Plateau. Bulletin of Glacier Research,12,57-67.
Trabant,D.C.and Mayo,L.R.,1985:Estimation and effects of meltwater refreezing on five glaciers in Alaska.Annals of Glaciology,6,113-117.
Ueno,K.,Endoh,T.,Ohata,T.,Yabuki,H.,Koike,T.,Koike,M.,Ohta,T.and Zhang,Y,1994:Characteristics of precipitation distribution in Tanggula, Monsoon,1993. Bulletin of Glacier Research,12,39-47.
Wakahama, G., Kuroiwa, D., Hasemi, T. and Benson, C. S.,1976: Field observations and experimental and theoretical studies on the superimposed ice of McCall Glacier, Alaska. Journal of Glaciology,16,135-150.

抄録

チベット高原上の寒冷氷河の質量収支過程を明らかにするために,タングラ山域小ドンケマディ氷河にて,1993年のモンスーン期に観測をおこなった.この氷河では氷河表面が融解によって低下する際にも,積雪下の氷面で浸透水の再凍結が生じ,実際には消耗とならないことを明らかにした.この過程を定量的に評価するために,凍結量,氷体の温度,浸透水との関係を時間的・空間的に比較した.実際に積雪下で凍結する水の量は,氷体の温度とそこに供給される浸透水の量によって決まることがわかった.質量収支が正となる涵養域では,温暖氷河なら流出してしまう浸透水の約6割が再凍結によって流出せず,再び氷河に固体として取り込まれることを明らかにした.

責任著者(Corresponding author)

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