Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075589 |
Antarctic Grounding Line Mapping From CryoSat-2 Radar Altimetry | |
Dawson, G. J.; Bamber, J. L. | |
2017-12-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | We present a new technique for mapping the grounding line of Antarctic ice shelves using a combination of CryoSat-2 standard and swath elevation data. Our method is based on detecting the tidal signal in pseudo crossovers and is tested on the Siple Coast region of West Antarctica. The mapped grounding line is in good agreement with previous observations from differential SAR interferometry and from ICESat repeat tracks, with a standard deviation of 1.1 km and 1.0 km, respectively, between these methods and ours. There is, however, an average seaward bias of 0.6 km, which is due to the poorer precision of CryoSat-2. We have improved coverage particularly near the Echelmeyer Ice Stream where we have shown that the grounding zone is approximately 25 km inland from previous estimates. This new method is computationally efficient and can be applied to the rest of Antarctica. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419102400024 |
WOS关键词 | ICESAT LASER ALTIMETRY ; SATELLITE-RADAR ; WEST ANTARCTICA ; KOHLER GLACIERS ; SHELF ; INTERFEROMETRY ; GREENLAND ; RETREAT ; ZONE ; ROSS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/26671 |
专题 | 气候变化 |
作者单位 | Univ Bristol, Bristol Glaciol Ctr, Sch Geog Sci, Bristol, Avon, England |
推荐引用方式 GB/T 7714 | Dawson, G. J.,Bamber, J. L.. Antarctic Grounding Line Mapping From CryoSat-2 Radar Altimetry[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(23). |
APA | Dawson, G. J.,&Bamber, J. L..(2017).Antarctic Grounding Line Mapping From CryoSat-2 Radar Altimetry.GEOPHYSICAL RESEARCH LETTERS,44(23). |
MLA | Dawson, G. J.,et al."Antarctic Grounding Line Mapping From CryoSat-2 Radar Altimetry".GEOPHYSICAL RESEARCH LETTERS 44.23(2017). |
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