Contrasting glacier responses to recent climate change in high-mountain Asia.
Contrasting glacier responses to recent climate change in high-mountain Asia.
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DOI：
10.1038/s41598-017-14256-5
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发表时间：
2017-10-20
影响因子：
4.6
通讯作者：
Fujita K
中科院分区：
文献类型：
--
作者：
Sakai A;Fujita K
最近对亚洲冰川的研究表明，东喀喇昆仑和西昆仑的冰川质量略有增加，而附近的查谟克什米尔和喜马拉雅山脉的冰川质量正在减少，分别超过0.5 m w.e.yr-1和约0.3 m w.e.yr-1。对冰川行为的这种差异提出了两种可能的解释：气候变化的空间异质性（气候强迫）或冰川对气候变化的不同反应（冰川反应）。然而，这两种解释都没有强有力的支持证据。在这里，我们研究冰川的反应，通过计算质量平衡的温度变化的敏感性在高山亚洲。在支持冰川响应的解释，我们发现观测到的冰川表面海拔变化和冰川的质量平衡敏感性之间有很强的相关性。高的决定系数（R2 = 0.61）表明，空间异质性的质量平衡的敏感性有更多的解释能力比区域不同的气候变化，最近在高山亚洲冰川波动的对比。
Recent studies of Asian glaciers have shown that glaciers in eastern Karakoram and West Kunlun have been slightly gaining mass while those in nearby Jammu Kashmir and Himalayas are losing mass, at rates of more than 0.5 m w.e.yr−1 and about 0.3 m w.e.yr−1, respectively. Two possible explanations have been proposed for this difference in glacier behaviour: spatial heterogeneity in climate change (climatic forcing) or differing glacier responses to climate change (glacier response). However, neither explanation has strong supporting evidence. Here, we examine the glacial response by calculating the mass-balance sensitivity to temperature change in high-mountain Asia. In support of the glacier-response explanation, we find a strong correlation between observed glacier surface-elevation changes and mass-balance sensitivity of glaciers. The high coefficient of determination (R2 = 0.61) suggests that spatially heterogeneous mass-balance sensitivity has more explanatory power than regionally different climate change for the recent contrasting glacier fluctuations in the high mountain Asia.
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影响因子：
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