Spatially variable response of Himalayan glaciers to climate change affected by debris cover
Spatially variable response of Himalayan glaciers to climate change affected by debris cover
复制标题
喜马拉雅冰川对受碎片覆盖影响的气候变化的空间变化响应
DOI:
10.1038/ngeo1068
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发表时间:
2011
影响因子:
18.3
通讯作者:
Strecker
中科院分区:
文献类型:
--
作者:
Scherler;Bookhagen;Strecker
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,. Variable retreat rates,,,and a paucity of glacial mass-balance data,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,or global sea level.
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DOI:
10.1086/621194
发表时间:
1904
期刊:
The Journal of Geology
影响因子:
--
作者:
I. H. Ogilvie
通讯作者:
I. H. Ogilvie
影响因子:
56.9
作者:
J. Cogley;J. Kargel;Georg Kaser;C. J. V. D. Veen
通讯作者:
J. Cogley;J. Kargel;Georg Kaser;C. J. V. D. Veen
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
L. Owen;E. Derbyshire;C. Scott
通讯作者:
C. Scott
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
V. K. Raina
通讯作者:
V. K. Raina