Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090978 |
Basal crevasse formation on Byrd Glacier, East Antarctica, as proxy for past subglacial flooding events | |
Sarah F. Child; Leigh A. Stearns; C. J. vander Veen; Pedro Eló; segui | |
2021-07-21 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Linear elastic fracture mechanics (LEFM) suggests that short-lived flow accelerations, such as the one initiated by a flooding event beneath Byrd Glacier in 2006, can form abnormally large basal crevasses at the grounding line. Airborne radar measurements acquired in 2011 reveal hundreds of basal crevasses ranging in height from 40 – 335 m. Particle tracking results show that formation of the largest basal crevasse occurred at the grounding line during the 2006 flooding event. Very large basal crevasses form distinctive surface depressions directly overhead, which are observed along the Byrd Glacier flowline to the terminus of the Ross Ice Shelf. By using these surface depressions as proxies for abnormally large basal crevasses, we create a timeline of past subglacial flooding events on Byrd Glacier. Understanding the frequency of flooding events and their effect on glacier dynamics will help inform models of ice sheet stability and subglacial hydrology. |
领域 | 气候变化 |
URL | 查看原文 |
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/334125 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Sarah F. Child,Leigh A. Stearns,C. J. vander Veen,et al. Basal crevasse formation on Byrd Glacier, East Antarctica, as proxy for past subglacial flooding events[J]. Geophysical Research Letters,2021. |
APA | Sarah F. Child,Leigh A. Stearns,C. J. vander Veen,Pedro Eló,&segui.(2021).Basal crevasse formation on Byrd Glacier, East Antarctica, as proxy for past subglacial flooding events.Geophysical Research Letters. |
MLA | Sarah F. Child,et al."Basal crevasse formation on Byrd Glacier, East Antarctica, as proxy for past subglacial flooding events".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论