globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2018.08.049
Scopus记录号: 2-s2.0-85053396533
论文题名:
Massive destabilization of an Arctic ice cap
作者: Willis M.J.; Zheng W.; Durkin W.J.; IV; Pritchard M.E.; Ramage J.M.; Dowdeswell J.A.; Benham T.J.; Bassford R.P.; Stearns L.A.; Glazovsky A.F.; Macheret Y.Y.; Porter C.C.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 502
起始页码: 146
结束页码: 155
语种: 英语
英文关键词: Arctic ; glaciers ; glaciology ; remote sensing
Scopus关键词: Glaciers ; Remote sensing ; Snow ; Submarine geology ; Arctic ; glaciology ; Ice mass loss ; Long term stability ; Marine sediments ; Polar ice caps ; Polar Regions ; Polythermal glaciers ; Ice ; bedrock ; boundary condition ; climate change ; glacier ; glaciology ; ice cap ; interface ; marine sediment ; remote sensing
英文摘要: Ice caps that are mostly frozen at the bedrock-ice interface are thought to be stable and respond slowly to changes in climate. We use remote sensing to measure velocity and thickness changes that occur when the margin of the largely cold-based Vavilov Ice Cap in the Russian High Arctic advances over weak marine sediments. We show that cold-based to polythermal glacier systems with no previous history of surging may evolve with unexpected and unprecedented speed when their basal boundary conditions change, resulting in very large dynamic ice mass losses (an increase in annual mass loss by a factor of ∼100) over a few years. We question the future long-term stability of cold and polythermal polar ice caps, many of which terminate in marine waters as the climate becomes warmer and wetter in the polar regions. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109639
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309, United States; Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY 14853, United States; Department of Earth and Environmental Sciences, Lehigh University, Bethlehem, PA 18015, United States; Scott Polar Research Institute, University of Cambridge, Cambridge, CB2 1ER, United Kingdom; Hardenhuish School, Chippenham, Wiltshire SN14 6RJ, United Kingdom; Department of Geology, University of Kansas, Lawrence, KS 66045, United States; Institute of Geography, Russian Academy of Sciences, Staromonetny 29, Moscow, 119107, Russian Federation; Polar Geospatial Center, University of Minnesota, Saint Paul, MN 55108, United States

Recommended Citation:
Willis M.J.,Zheng W.,Durkin W.J.,et al. Massive destabilization of an Arctic ice cap[J]. Earth and Planetary Science Letters,2018-01-01,502
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