000029441 001__ 29441
000029441 041__ $$aEnglish
000029441 100__ $$aVincent, C.
000029441 245__ $$aBalanced Conditions or Slight Mass Gain of Glaciers in the Lahaul and Spiti Region (Northern India, Himalaya) During the Nineties Preceded Recent Mass Loss
000029441 269__ $$cMarch 2014
000029441 260__ $$c2013
000029441 300__ $$a569-582
000029441 511__ $$aCrysparticle
000029441 511__ $$aCrysparticle
000029441 520__ $$aThe volume change of the Chhota Shigri Glacier (India, 32° 20 N, 77° 30' E) between 1988 and 2010 has been determined using in situ geodetic measurements. This glacier has experienced only a slight mass loss between 1988 and 2010 (−3.8 ± 2.0 m w.e. (water equivalent) corresponding to −0.17 ± 0.09 m w.e. yr−1). Using satellite digital elevation models (DEM) differencing and field measurements, we measure a negative mass balance (MB) between 1999 and 2010 (−4.8 ± 1.8 m w.e. corresponding to −0.44 ± 0.16 m w.e. yr−1). Thus, we deduce a slightly positive or near-zero MB between 1988 and 1999 (+1.0 ± 2.7 m w.e. corresponding to +0.09 ± 0.24 m w.e. yr−1). Furthermore, satellite DEM differencing reveals that the MB of the Chhota Shigri Glacier (−0.39 ± 0.15 m w.e. yr−1) has been only slightly less negative than the MB of a 2110 km2 glaciarized area in the Lahaul and Spiti region (−0.44 ± 0.09 m w.e. yr−1) during 1999−2011. Hence, we conclude that the ice wastage is probably moderate in this region over the last 22 yr, with near equilibrium conditions during the nineties, and an ice mass loss after. The turning point from balanced to negative mass budget is not known but lies probably in the late nineties and at the latest in 1999. This positive or near-zero MB for Chhota Shigri Glacier (and probably for the surrounding glaciers of the Lahaul and Spiti region) during at least part of the 1990s contrasts with a recent compilation of MB data in the Himalayan range that indicated ice wastage since 1975. However, in agreement with this compilation, we confirm more negative balances since the beginning of the 21st century.
000029441 650__ $$aGlaciers
000029441 700__ $$aRamanathan, A.
000029441 700__ $$aWagnon, P.
000029441 700__ $$aDobhal, D. P.
000029441 700__ $$aLinda, A.
000029441 700__ $$aBerthier, E.
000029441 700__ $$aSharma, P.
000029441 700__ $$aArnaud, Y.
000029441 700__ $$aAzam, M. F.
000029441 700__ $$aJose, P. G.
000029441 700__ $$aGardelle, J.
000029441 773__ $$pThe Cryosphere
000029441 773__ $$v7 (2)
000029441 773__ $$a10.5194/tc-7-569-2013
000029441 8564_ $$uhttp://www.the-cryosphere.net/7/569/2013/tc-7-569-2013.html$$ySource link (opan access)
000029441 8564_ $$uhttp://lib.icimod.org/record/29441/files/tc-7-569-2013.pdf
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000029441 980__ $$aARTICLE