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2003 Fiscal Year Final Research Report Summary

Monitoring of supra glacial lakes and risk assessment of their outburst in the Greet Himalayas.

Research Project

Project/Area Number 14380198
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Natural disaster science
Research InstitutionHokkaido University

Principal Investigator

YAMADA Tomomi  Hokkaido Univ., Inst.of Low Temp.Science, Asso.Prof., 低温科学研究所, 助教授 (50002100)

Co-Investigator(Kenkyū-buntansha) SAITO Mitsuyoshi  Mitsui Metal Rasources Development Co., Ltd., Dep.of Environment Research, Sub-Manager, 環境事業部, 副部長(研究職)
SHIRAIWA Takayuki  Hokkaido Univ., Inst.of Low Temp.Science, Asso.Prof., 低温化学研究所, 助教授 (90235739)
ISOGAI Koichi  Mitsui Metal Rasources Development Co., Ltd., Dep.of Environment Research, Assistant Manager, 環境事業部, 部長補佐
Project Period (FY) 2002 – 2003
Keywordssatellite imagery / Great Himalayas / supra-covered glacier / moraine / glacier lake outburst flood / debris-covered glacier / temporal variation of a glacier lake / moraine-dammed glacier lake
Research Abstract

The inventory of present moraine dammed glacier lakes with the area more than 0.01km^2 in the northern and southern slopes of the Great Himalayas in the longitude between 85°15′ and 91°00′E, i.e., eastern Nepal, Sikkim, India, Bhutan and Tibet, China was made by using the latest Landsat ETM imageries taken in 2000, 2001 and 2002. Totally 539 lakes with the whole ares of 122.46km^2 are compiled in this area. The lakes were also compiled using Landast MSS imageries taken in 1976 and compared with the lakes found in the 2000-2002 imageries to clarify their temporal variations during 24-26 years. The results indicate that all lakes in 1976 expanded and many lakes are newly formed in the period. As a result of examining the causes of the development of the lakes in terms of the inclination of topography, where glaciers are situated, it is found that the gentler an inclination of topography is, the more the glacial lakes develop.
The risk of a glacial lake outburst flood (GLOF) should he evaluated by lake size, the possibility of sudden huge mass input into the lake from the lake surroundings and the extent of a moraine-dam deterioration due to cored ice melting or piping. The measures of the risk assessment were studied by means of topographic interpretation such as mass movement landform and slope failure around the lake, using optical data of ASTER and Landsat and DEM stereoscopy constructed by SAR data pair. But the relationship between these information obtained by the analysis of satellite data sod the actual risk of GLOF should be continuously studied in future, because further collection of grand truth data is still necessary to GLOF risk assessment.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 佐藤成行, 山田知充, 白岩孝行, 成瀬廉二, 矢吹裕伯, 斉藤光義: "人工衛星によるヒマラヤ山脈の氷河湖台帳作成と氷河湖変動の地域特性の研究"雪氷. 66(印刷中). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nariyuki SATO, Takayuki SHIRAIWA, Tomomi YAMADA: "Temporal variation of glacial lakes since 1976 in the Great Himalayas revealed by satellite imageries"Proceedings of the 19th Himalaya-Karakoram-Tibet Workshop. (Proceedings)(abstract already submitted). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤成行, 山田知充, 白岩孝行, 成瀬廉二, 矢吹裕伯, 斉藤光義: "ヒマラヤ山脈における氷河湖の台帳と変動地域特性"平成15年度北海道大学低温科学研究所共同研究集会-氷河湖に関する研究集会-報告書. 平成15年度共同研究報告書. 52-61 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sato, N., Shiraiwa T., Yamada T.: "Inventory of moraine-dammed supra-glacial lakes and their temporal variation in the Great Himalayas by using satellite imageries."Seppyo (in Japanese). (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato N, Shiraiwa, T., Yamada, T.: "Temporal variation of glacier lakes since 1976 in the Great himalayas revealed by satellite imageries."Proceedings of the 19th Himalaya-Karkoram-Tibet Workshop, abstract. (submitted). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, N., Shiraiwa, T., Yamada, T, Naruse, R.: "Glacier lake inventory and temporal variation of glacier lakes in the Himarayas. (in Japanese)"Report of the Glacier Lake Workshop in ILTS 2003. 52-61 (2004)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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