DOI: 10.1002/2016GL069287
论文题名: Grounding line retreat of Pope, Smith, and Kohler Glaciers, West Antarctica, measured with Sentinel-1a radar interferometry data
作者: Scheuchl B. ; Mouginot J. ; Rignot E. ; Morlighem M. ; Khazendar A.
刊名: Geophysical Research Letters
ISSN: 0094-8759
EISSN: 1944-8490
出版年: 2016
卷: 43, 期: 16 起始页码: 8572
结束页码: 8579
语种: 英语
英文关键词: Grounding Line
; Sentinel-1
; Synthetic Aperture Radar
Scopus关键词: Geodetic satellites
; Interferometry
; Radar
; Radar measurement
; Remote sensing
; Space-based radar
; Synthetic aperture radar
; Earth remote sensing
; Glacier retreat
; Grounding line
; Pinning points
; Radar interferometry
; Satellite radar interferometry data
; Sentinel-1
; West antarctica
; Ice
英文摘要: We employ Sentinel-1a C band satellite radar interferometry data in Terrain Observation with Progressive Scans mode to map the grounding line and ice velocity of Pope, Smith, and Kohler glaciers, in West Antarctica, for the years 2014–2016 and compare the results with those obtained using Earth Remote Sensing Satellites (ERS-1/2) in 1992, 1996, and 2011. We observe an ongoing, rapid grounding line retreat of Smith at 2 km/yr (40 km since 1996), an 11 km retreat of Pope (0.5 km/yr), and a 2 km readvance of Kohler since 2011. The variability in glacier retreat is consistent with the distribution of basal slopes, i.e., fast along retrograde beds and slow along prograde beds. We find that several pinning points holding Dotson and Crosson ice shelves disappeared since 1996 due to ice shelf thinning, which signal the ongoing weakening of these ice shelves. Overall, the results indicate that ice shelf and glacier retreat in this sector remain unabated. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983681742&doi=10.1002%2f2016GL069287&partnerID=40&md5=3e023c18ed9b1dbdcc496724a93c2819
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9722
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Earth System Science, University of California, Irvine, CA, United States
Recommended Citation:
Scheuchl B.,Mouginot J.,Rignot E.,et al. Grounding line retreat of Pope, Smith, and Kohler Glaciers, West Antarctica, measured with Sentinel-1a radar interferometry data[J]. Geophysical Research Letters,2016-01-01,43(16).