%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Wagnon, Patrick
%A Linda, A.
%A Arnaud, Yves
%A Kumar, R.
%A Sharma, P.
%A Vincent, C.
%A Pottakkal, J. G.
%A Berthier, E.
%A Ramanathan, A.
%A Hasnain, S. I.
%A Chevallier, Pierre
%T Four years of mass balance on Chhota Shigri Glacier, Himachal Pradesh, India, a new benchmark glacier in the western Himalaya
%D 2007
%L PAR00002177
%G ENG
%J Journal of Glaciology
%@ 0022-1430
%M CC:0002526264-0009
%N 183
%P 603-611
%R 10.3189/002214307784409306
%U https://www.documentation.ird.fr/hor/PAR00002177
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2021-10/010083471.pdf
%V 53
%W Horizon (IRD)
%X Little is known about the Himalayan glaciers, although they are of particular interest in terms of future water supply, regional climate change and sea-level rise. In 2002, a long-term monitoring programme was started on Chhota Shigri Glacier (32.2 degrees N, 77.5 degrees E; 15.7 km(2), 6263-4050 m a.s.l., 9 km long) located in Lahaul and Spiti Valley, Himachal Pradesh, India. This glacier lies in the monsoon-arid transition zone (western Himalaya) which is alternately influenced by Asian monsoon in summer and the mid-latitude westerlies in winter. Here we present the results of a 4 year study of mass balance and surface velocity. Overall specific mass balances are mostly negative during the study period and vary from a minimum value of -1.4 rn w.e. in 2002/03 and 2005/06 (equilibrium-line altitude (ELA) similar to 5180 m a.s.l.) to a maximum value of +0.1 rn w.e. in 2004/05 (ELA 4855 m a.s.l.). Chhota Shigri Glacier seems similar to mid-latitude glaciers, with an ablation season limited to the summer months and a mean vertical gradient of mass balance in the ablation zone (debris-free part) of 0.7 m w.e. (100 m)(-1), similar to those reported in the Alps. Mass balance is strongly dependent on debris cover, exposure and the shading effect of surrounding steep slopes.
%$ 021