(Article of periodic en Anglais - 2009)

Document title

Evaluating the growth characteristics of a glacial lake and its degree of danger of outburst flooding : Imja Glacier, Khumbu Himal, Nepal

Authors(s) and Affiliation(s)

WATANABE T. (1) ; LAMSAL D. (2) ; IVES J.D. (3) ;
(1) Fac. of Environmental Earth Science, Group of Geoecological Science, Hokkaido Univ., Sapporo, JAPON
(2) Graduate School of Environmental Science, Hokkaido Univ., Sapporo, JAPON
(3) Dep. of Geography and Environmental Studies, Carleton Univ., Ottawa, CANADA


The Imja Glacier Lake (Imja Tsho) (1.03 km2 in 2007) is repeatedly cited as one of the most dangerous glacial lakes in the Himalaya with a glacial lake outburst flood (GLOF) claimed to be imminent. This paper provides an assessment of the lake expansion rates from 1956 to 2007 and aims to evaluate the degree of danger of catastrophic drainage. The results show that there is no immediate danger of catastrophic outburst although the dynamics of up-glacier and down-valley lake expansion, fluctuation of lake water level, and dead-ice morphology changes should be continuously and comprehensively monitored. Alarmist prognostications based solely upon rapid areal expansion are counterproductive


Article of periodic

published at : Norsk geografisk tidsskrift / ISSN 0029-1951 / CODEN NGGTA2

Editor : Norske geografiske selskab, Oslo ; Universitetsforlaget, Oslo - NORVEGE (1926)

Millesime : 2009, vol. 63, no4 [pp. 255-267]

Bibliographic references : 1 p.

Collation : 13 fig., 1 tabl.




Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/00291950903368367

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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