Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aat2217 |
Friction at the bed does not control fast glacier flow | |
Stearns, L. A.1,2; van der Veen, C. J.3 | |
2018-07-20 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 361期号:6399页码:273-277 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The largest uncertainty in the ice sheet models used to predict future sea level rise originates from our limited understanding of processes at the ice/bed interface. Near glacier termini, where basal sliding controls ice flow, most predictive ice sheet models use a parameterization of sliding that has been theoretically derived for glacier flow over a hard bed. We find that this sliding relation does not apply to the 140 Greenland glaciers that we analyzed. There is no relationship between basal sliding and frictional stress at the glacier bed, contrary to theoretical predictions. There is a strong relationship between sliding speed and net pressure at the glacier bed. This latter finding is in agreement with earlier observations of mountain glaciers that have been largely overlooked by the glaciological community. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439145800042 |
WOS关键词 | GREENLAND ICE-SHEET ; SEA-LEVEL RISE ; SUBGLACIAL WATER-PRESSURE ; WEST GREENLAND ; RUSSELL GLACIER ; OUTLET GLACIERS ; STREAM-B ; BENEATH ; ANTARCTICA ; SEDIMENT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/199193 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA; 2.Univ Kansas, Ctr Remote Sensing Ice Sheets, Lawrence, KS 66045 USA; 3.Univ Kansas, Dept Geog & Atmospher Sci, Lawrence, KS 66045 USA |
推荐引用方式 GB/T 7714 | Stearns, L. A.,van der Veen, C. J.. Friction at the bed does not control fast glacier flow[J]. SCIENCE,2018,361(6399):273-277. |
APA | Stearns, L. A.,&van der Veen, C. J..(2018).Friction at the bed does not control fast glacier flow.SCIENCE,361(6399),273-277. |
MLA | Stearns, L. A.,et al."Friction at the bed does not control fast glacier flow".SCIENCE 361.6399(2018):273-277. |
条目包含的文件 | 条目无相关文件。 |
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