TY  - JOUR
A1  - Scherler, Dirk
A1  - Bookhagen, Bodo
A1  - Strecker, Manfred
T1  - Spatially variable response of Himalayan glaciers to climate change affected by debris cover
T2  - Nature geoscience
N2  - Controversy about the current state and future evolution of Himalayan glaciers has been stirred up by erroneous statements in the fourth report by the Intergovernmental Panel on Climate Change(1,2). Variable retreat rates(3-6) and a paucity of glacial mass-balance data(7,8) make it difficult to develop a coherent picture of regional climate-change impacts in the region. Here, we report remotely-sensed frontal changes and surface velocities from glaciers in the greater Himalaya between 2000 and 2008 that provide evidence for strong spatial variations in glacier behaviour which are linked to topography and climate. More than 65% of the monsoon-influenced glaciers that we observed are retreating, but heavily debris-covered glaciers with stagnant low-gradient terminus regions typically have stable fronts. Debris-covered glaciers are common in the rugged central Himalaya, but they are almost absent in subdued landscapes on the Tibetan Plateau, where retreat rates are higher. In contrast, more than 50% of observed glaciers in the westerlies-influenced Karakoram region in the northwestern Himalaya are advancing or stable. Our study shows that there is no uniform response of Himalayan glaciers to climate change and highlights the importance of debris cover for understanding glacier retreat, an effect that has so far been neglected in predictions of future water availability(9,10) or global sea level(11).
Y1  - 2011
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37010
SN  - 1752-0894
VL  - 4
IS  - 3
SP  - 156
EP  - 159
PB  - Nature Publ. Group
CY  - New York
ER  -