000028369 001__ 28369
000028369 041__ $$aEnglish
000028369 100__ $$aVincent, C.
000028369 245__ $$aBalanced Conditions or Slight Mass Gain of Glaciers in the Lahaul and Spiti Region (Northern India, Himalaya) During the Nineties Preceded Recent Mass Loss
000028369 260__ $$c2013
000028369 300__ $$a569-582
000028369 507__ $$aICIMOD Staff, peerreviewed
000028369 511__ $$aCrysparticle
000028369 511__ $$aCryosphere
000028369 520__ $$aThe volume change of the Chhota Shigri Glacier (India, 32° 20 N, 77° 30' E) between 1988 and 2010 has been determined using in situ geodetic measurements. This glacier has experienced only a slight mass loss between 1988 and 2010 (−3.8 ± 2.0 m w.e. (water equivalent) corresponding to −0.17 ± 0.09 m w.e. yr−1). Using satellite digital elevation models (DEM) differencing and field measurements, we measure a negative mass balance (MB) between 1999 and 2010 (−4.8 ± 1.8 m w.e. corresponding to −0.44 ± 0.16 m w.e. yr−1). Thus, we deduce a slightly positive or near-zero MB between 1988 and 1999 (+1.0 ± 2.7 m w.e. corresponding to +0.09 ± 0.24 m w.e. yr−1). Furthermore, satellite DEM differencing reveals that the MB of the Chhota Shigri Glacier (−0.39 ± 0.15 m w.e. yr−1) has been only slightly less negative than the MB of a 2110 km2 glaciarized area in the Lahaul and Spiti region (−0.44 ± 0.09 m w.e. yr−1) during 1999−2011. Hence, we conclude that the ice wastage is probably moderate in this region over the last 22 yr, with near equilibrium conditions during the nineties, and an ice mass loss after. The turning point from balanced to negative mass budget is not known but lies probably in the late nineties and at the latest in 1999. This positive or near-zero MB for Chhota Shigri Glacier (and probably for the surrounding glaciers of the Lahaul and Spiti region) during at least part of the 1990s contrasts with a recent compilation of MB data in the Himalayan range that indicated ice wastage since 1975. However, in agreement with this compilation, we confirm more negative balances since the beginning of the 21st century.
000028369 700__ $$aRamanathan, A.
000028369 700__ $$aWagnon, P.
000028369 700__ $$aDobhal, D. P.
000028369 700__ $$aLinda, A.
000028369 700__ $$aBerthier, E.
000028369 700__ $$aSharma, P.
000028369 700__ $$aArnaud, Y.
000028369 700__ $$aAzam, M. F.
000028369 700__ $$aJose, P. G.
000028369 700__ $$aGardelle, J.
000028369 773__ $$pThe Cryosphere
000028369 773__ $$v7 (2)
000028369 773__ $$a10.5194/tc-7-569-2013
000028369 8564_ $$uhttp://www.the-cryosphere.net/7/569/2013/$$yExternal link
000028369 980__ $$aARTICLE