Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-018-06107-2 |
Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations | |
Jeofry, Hafeez1,2,3; Ross, Neil4; Le Brocq, Anne5; Graham, Alastair G. C.5; Li, Jilu6; Gogineni, Prasad7,8; Morlighem, Mathieu9; Jordan, Thomas10,11; Siegert, Martin J.1,2 | |
2018-11-01 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Malaysia; USA |
英文摘要 | Satellite imagery reveals flowstripes on Foundation Ice Stream parallel to ice flow, and meandering features on the ice-shelf that cross-cut ice flow and are thought to be formed by water exiting a well-organised subglacial system. Here, ice-penetrating radar data show flow-parallel hard-bed landforms beneath the grounded ice, and channels incised upwards into the ice shelf beneath meandering surface channels. As the ice transitions to flotation, the ice shelf incorporates a corrugation resulting from the landforms. Radar reveals the presence of subglacial water alongside the landforms, indicating a well-organised drainage system in which water exits the ice sheet as a point source, mixes with cavity water and incises upwards into a corrugation peak, accentuating the corrugation downstream. Hard-bedded landforms influence both subglacial hydrology and ice-shelf structure and, as they are known to be widespread on formerly glaciated terrain, their influence on the ice-sheet-shelf transition could be more widespread than thought previously. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448941200006 |
WOS关键词 | WEDDELL SEA SECTOR ; WEST ANTARCTICA ; SUBGLACIAL BEDFORMS ; STREAMLINED HARD ; GROUNDING LINE ; SHEET ; BED ; BENEATH ; MODEL ; ZONE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/203991 |
专题 | 资源环境科学 |
作者单位 | 1.Imperial Coll London, Grantham Inst, London SW7 2AZ, England; 2.Imperial Coll London, Dept Earth Sci & Engn, London SW7 2AZ, England; 3.Univ Malaysia Terengganu, Sch Marine Sci & Environm, Kuala Terengganu 21300, Terengganu, Malaysia; 4.Newcastle Univ, Sch Geog Polit & Sociol, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England; 5.Univ Exeter, Geog, Coll Life & Environm Sci, Exeter EX4 4RJ, Devon, England; 6.Univ Kansas, Ctr Remote Sensing Ice Sheets, Lawrence, KS 66045 USA; 7.Univ Alabama, ECE Dept, Tuscaloosa, AL 35487 USA; 8.Univ Alabama, AEM Dept, Tuscaloosa, AL 35487 USA; 9.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 10.Stanford Univ, Dept Geophys, Stanford, CA 94305 USA; 11.Univ Bristol, Sch Geog Sci, Bristol BS8 1SS, Avon, England |
推荐引用方式 GB/T 7714 | Jeofry, Hafeez,Ross, Neil,Le Brocq, Anne,et al. Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations[J]. NATURE COMMUNICATIONS,2018,9. |
APA | Jeofry, Hafeez.,Ross, Neil.,Le Brocq, Anne.,Graham, Alastair G. C..,Li, Jilu.,...&Siegert, Martin J..(2018).Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations.NATURE COMMUNICATIONS,9. |
MLA | Jeofry, Hafeez,et al."Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations".NATURE COMMUNICATIONS 9(2018). |
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