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| DOI | 10.1029/2020GL088524 |
| Impact of Calving Dynamics on Kangilernata Sermia; Greenland | |
| Kane E.; Rignot E.; Mouginot J.; Millan R.; Li X.; Scheuchl B.; Fahnestock M. | |
| 发表日期 | 2020 |
| ISSN | 0094-8276 |
| 卷号 | 47期号:20 |
| 英文摘要 | Iceberg calving is a major component of glacier mass ablation that is not well understood due to a lack of detailed temporal and spatial observations. Here, we measure glacier speed and surface elevation at 3 min intervals using a portable radar interferometer at Kangilernata Sermia, West Greenland, for a period of 2 weeks in July 2016. We detect a 20% diurnal variation in glacier speed in phase with tidal height propagating kilometers inland. We find no speedup from ice shedding off the calving face or the detachment of floating ice blocks but a 30% speedup within a few hundred meters of the ice front that persists for days when calving removes full-thickness grounded ice blocks. Within one ice thickness from the calving front, we detect maximum strain rates 2 to 3 times larger than observable from satellite data, which has implications for studying iceberg calving as a fracturing process. ©2020. The Authors. |
| 英文关键词 | Sea ice; Diurnal variation; Fracturing process; Maximum strains; Portable radars; Satellite data; Surface elevations; Temporal and spatial; West Greenland; Strain rate; ablation; diurnal variation; floating ice; glacier mass balance; ice thickness; iceberg calving; radar interferometry; satellite data; Arctic; Greenland; West Greenland |
| 语种 | 英语 |
| 来源期刊 | Geophysical Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/169559 |
| 作者单位 | Department of Earth System Science, University of California, Irvine, CA, United States; Jet Propulsion Laboratory/Caltech, Pasadena, CA, United States; Universite Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, France; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United States |
| 推荐引用方式 GB/T 7714 | Kane E.,Rignot E.,Mouginot J.,et al. Impact of Calving Dynamics on Kangilernata Sermia; Greenland[J],2020,47(20). |
| APA | Kane E..,Rignot E..,Mouginot J..,Millan R..,Li X..,...&Fahnestock M..(2020).Impact of Calving Dynamics on Kangilernata Sermia; Greenland.Geophysical Research Letters,47(20). |
| MLA | Kane E.,et al."Impact of Calving Dynamics on Kangilernata Sermia; Greenland".Geophysical Research Letters 47.20(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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