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DOI | 10.1029/2019GL085802 |
Hagen Br ae: A Surging Glacier in North Greenland-35 Years of Observations | |
Solgaard, A. M.1; Simonsen, S. B.2; Grinsted, A.3; Mottram, R.4; Karlsson, N. B.1; Hansen, K.1; Kusk, A.2; Sorensen, L. S.2 | |
2020-03-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark |
英文摘要 | We use remotely sensed ice velocities in combination with observations of surface elevation and glacier area change to investigate the dynamics of Hagen Br ae, North Greenland in high detail over the last 35 years. From our data, we can establish for the first time that Hagen Br ae is a surge-type glacier with characteristics of both Alaskan- and Svalbard-type surging glaciers. We argue that the observed surge was preconditioned by the glacier geometry and triggered by englacially stored meltwater. At present, the glacier is in a transitional state between active and quiescence phases and is not building up to its pre-surge geometry. We suggest that the glacier is adjusting to the loss of its floating section, general thinning, and changes in fjord conditions that occurred over the study period which are unrelated to the surge behavior. The high temporal resolution of the ice velocity data gives insight to the sub-annual glacier flow. |
英文关键词 | glacier surge ice dynamics ice flow North Greenland remote sensing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529097700009 |
WOS关键词 | MASS-BALANCE ; ICE ; MECHANISM ; DYNAMICS ; SVALBARD ; RETREAT ; SURGES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279825 |
专题 | 气候变化 |
作者单位 | 1.Geol Survey Denmark & Greenland GEUS, Dept Glaciol & Climate, Copenhagen, Denmark; 2.Tech Univ Denmark, Natl Space Inst, Lyngby, Denmark; 3.Univ Copenhagen, Niels Bohr Inst, Phys Ice Climate & Earth, Copenhagen, Denmark; 4.DMI, Copenhagen, Denmark |
推荐引用方式 GB/T 7714 | Solgaard, A. M.,Simonsen, S. B.,Grinsted, A.,et al. Hagen Br ae: A Surging Glacier in North Greenland-35 Years of Observations[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(6). |
APA | Solgaard, A. M..,Simonsen, S. B..,Grinsted, A..,Mottram, R..,Karlsson, N. B..,...&Sorensen, L. S..(2020).Hagen Br ae: A Surging Glacier in North Greenland-35 Years of Observations.GEOPHYSICAL RESEARCH LETTERS,47(6). |
MLA | Solgaard, A. M.,et al."Hagen Br ae: A Surging Glacier in North Greenland-35 Years of Observations".GEOPHYSICAL RESEARCH LETTERS 47.6(2020). |
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