An investigation on changes in glacier mass balance and hypsometry for a small mountainous glacier in the northeastern Tibetan Plateau
An investigation on changes in glacier mass balance and hypsometry for a small mountainous glacier in the northeastern Tibetan Plateau
复制标题
青藏高原东北部小山地冰川冰川质量平衡和测高变化研究
DOI：
10.1007/s11629-016-4064-6
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发表时间：
2017-08
影响因子：
2.5
通讯作者：
Pan BT
中科院分区：
文献类型：
--
作者：
Cao Bo;Pan Bao-tian;Wang Jie;Cai Ming-yong;Pan BT
物质平衡是冰川对气候变化敏感性的一个关键指标。野外测量是研究冰川物质平衡的重要手段之一。根据祁连山水关4号冰川消融带物质平衡观测资料，结合冰川消融与积累的平衡比，建立了物质平衡与海拔高度的线性关系。结果表明，该冰川年平均物质平衡约为510 mm w.e.从2010年到2013年。平衡比值的不确定性不会导致质量平衡的显著差异。从1972年到2013年，平衡线海拔上升了180米，而累积面积比从0.68下降到0.25。这些变化可能是由气温变化引起的。与此同时，冰川目前并不处于稳定状态，即使没有进一步的气候变暖，它也可能继续缩小约900米。在冷龙岭西部，假设冰川处于稳定状态，平衡线高度（ELAs）保持不变，冰川将只剩下46条，总面积为19.2km2，仅为1972年冰川面积的22.3%。
Mass balance is a key indicator of the sensitivity of glaciers to climate change. Field measurement is one of the most important ways to study the mass balance of glaciers. Based on observations of mass balance in the ablation zone of Shuiguan Glacier No.4, Qilian Mountains, China, combined with the balance ratio between accumulation and ablation, we established a linear relation between mass balance and altitude. The results show that the mean annual mass balance of this glacier was ~510 mm w.e. from 2010 to 2013. The uncertainty in the balance ratio value does not lead to a significant difference in the mass balance. The equilibrium-line altitude rose by 180 m from 1972 to 2013, while the accumulation—area ratio decreased from 0.68 to 0.25. These variations may be caused by changes in air temperature. Meanwhile, the glacier is at present not in a steady state, and it may continue to shrink by a further ~900 m, even without further climate warming. In the western Lenglongling Mountains, assuming that the glaciers are in a steady state and the Equilibrium-line altitudes (ELAs) remain similar, there will be only 46 glaciers left, covering a total area of 19.2 km2, in other words, only 22.3% of the glaciers area in 1972.
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影响因子：
3.4
作者：
Dyurgerov, Mark;Meier, Mark F.;Bahr, David B.
通讯作者：
Bahr, David B.
DOI：
--
发表时间：
2009
期刊：
Journal of Glaciology and Geocryology
影响因子：
--
作者：
Chen Liang
通讯作者：
Chen Liang
影响因子：
3.4
作者：
Shiyin Liu;Wenxin Sun;Yongping Shen;L. Gang
通讯作者：
Shiyin Liu;Wenxin Sun;Yongping Shen;L. Gang
DOI：
10.2307/1551118
发表时间：
1981-01
期刊：
Arctic and alpine research
影响因子：
--
作者：
R. Armstrong;W. Paterson
通讯作者：
R. Armstrong;W. Paterson
影响因子：
3.9
作者：
Liyun Zhao;R. Ding;J. Moore
通讯作者：
Liyun Zhao;R. Ding;J. Moore