Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094743 |
Roughness of ice shelves is correlated with basal melt rates | |
Ray H. Watkins; Jeremy N. Bassis; M. D. Thouless | |
2021-10-19 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2021 |
英文摘要 | Ice shelf collapse could trigger widespread retreat of marine-based portions of the Antarctic ice sheet. However, little is known about the processes that control the stability of ice shelves. Recent observations have revealed that ice shelves have topographic features that span a spectrum of wavelengths, including basal channels and crevasses. Here we use ground-penetrating radar data to quantify patterns of roughness within and between ice shelves. We find that roughness follows a power law with the scaling exponent approximately constant between ice shelves. However, the level of roughness varies by nearly an order of magnitude between ice shelves. Critically, we find that roughness strongly correlates with basal melt, suggesting that increased melt not only leads to larger melt channels, but also to increased fracturing, rifting and decreased ice shelf stability. This hints that the mechanical stability of ice shelves may be more tightly controlled by ocean forcing than previously thought. |
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/340842 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Ray H. Watkins,Jeremy N. Bassis,M. D. Thouless. Roughness of ice shelves is correlated with basal melt rates[J]. Geophysical Research Letters,2021. |
APA | Ray H. Watkins,Jeremy N. Bassis,&M. D. Thouless.(2021).Roughness of ice shelves is correlated with basal melt rates.Geophysical Research Letters. |
MLA | Ray H. Watkins,et al."Roughness of ice shelves is correlated with basal melt rates".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