Antarctic surface hydrology and impacts on ice-sheet mass balance
Antarctic surface hydrology and impacts on ice-sheet mass balance
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DOI：
10.1038/s41558-018-0326-3
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发表时间：
2018-12-01
影响因子：
30.7
通讯作者：
Kingslake, Jonathan
中科院分区：
文献类型：
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作者：
Bell, Robin E.;Banwell, Alison F.;Kingslake, Jonathan
南极洲周围的冰沿着到处都是融化。在地面冰盖和浮冰架的表面，广泛的湖泊、溪流和河流网络既储存又运输水。随着气候变暖，融化加剧，南极洲某些地区的地表水文可能类似于格陵兰岛当今的消融和渗透区。根据对南极洲广泛地表水的观测和格陵兰岛数十年的研究，我们考虑了融水可能影响南极质量平衡的三种模式：径流增加，融水注入床和融水引起的冰架断裂-所有这些都可能导致南极洲未来冰盖质量损失。
Melting is pervasive along the ice surrounding Antarctica. On the surface of the grounded ice sheet and floating ice shelves, extensive networks of lakes, streams and rivers both store and transport water. As melting increases with a warming climate, the surface hydrology of Antarctica in some regions could resemble Greenland's present-day ablation and percolation zones. Drawing on observations of widespread surface water in Antarctica and decades of study in Greenland, we consider three modes by which meltwater could impact Antarctic mass balance: increased runoff, meltwater injection to the bed and meltwater-induced ice-shelf fracture - all of which may contribute to future ice-sheet mass loss from Antarctica.