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| DOI | 10.1017/jog.2024.9 |
| Sub-regional variability in the influence of ice-contact lakes on Himalayan glaciers | |
| Scoffield, Alex C.; Rowan, Ann V.; Quincey, Duncan J.; Carrivick, Jonathan L.; Sole, Andrew J.; Cook, Simon J. | |
| 发表日期 | 2024 |
| ISSN | 0022-1430 |
| EISSN | 1727-5652 |
| 英文摘要 | Ice-contact lakes modify glacier geometry and dynamics by shifting the majority of mass loss from the ice surface to the terminus. Lake-terminating glaciers are known to experience greater thinning rates and higher velocities than land-terminating glaciers, but the controls on variability in surface elevation change and ice flow between lake-terminating glaciers in different regions remain poorly explored. We combined existing datasets of glacier velocity, surface elevation change and glacial lake area to characterise the evolution of 352 lake-terminating and land-terminating glaciers within three Himalayan sub-regions between 2000 and 2019. These analyses show that the influence of ice-contact lakes propagates up-glacier across only the lowermost 30% of the hypsometric distribution, even where lakes are well established. We find that ice-contact lakes only affect glacier behaviour when the lakes reach an advanced evolutionary stage; most clearly manifested in the Eastern Himalaya by statistically robust differences in glacier-wide surface elevation change between lake-terminating (-0.68 +/- 0.05 m a-1) and land-terminating (-0.54 +/- 0.04 m a-1) glaciers. These differences are driven by the presence of a greater number of well-developed ice-contact lakes in the Eastern Himalaya compared to in the Western and Central Himalaya, resulting from greater mass loss rates to date. |
| 英文关键词 | glacier ablation phenomena; glacier calving; glacier flow |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001192254400001 |
| 来源期刊 | JOURNAL OF GLACIOLOGY
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/296781 |
| 作者单位 | University of Leeds; Bjerknes Centre for Climate Research; University of Sheffield; University of Dundee; University of Dundee |
| 推荐引用方式 GB/T 7714 | Scoffield, Alex C.,Rowan, Ann V.,Quincey, Duncan J.,et al. Sub-regional variability in the influence of ice-contact lakes on Himalayan glaciers[J],2024. |
| APA | Scoffield, Alex C.,Rowan, Ann V.,Quincey, Duncan J.,Carrivick, Jonathan L.,Sole, Andrew J.,&Cook, Simon J..(2024).Sub-regional variability in the influence of ice-contact lakes on Himalayan glaciers.JOURNAL OF GLACIOLOGY. |
| MLA | Scoffield, Alex C.,et al."Sub-regional variability in the influence of ice-contact lakes on Himalayan glaciers".JOURNAL OF GLACIOLOGY (2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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