DOI: 10.1002/2016GL071360
论文题名: Accelerated ice shelf rifting and retreat at Pine Island Glacier, West Antarctica
作者: Jeong S. ; Howat I.M. ; Bassis J.N.
刊名: Geophysical Research Letters
ISSN: 0094-8410
EISSN: 1944-8141
出版年: 2016
卷: 43, 期: 22 起始页码: 11720
结束页码: 11725
语种: 英语
英文关键词: basal crevasse
; calving
; Landsat
; Pine Island Glacier
; rifting
Scopus关键词: Sea ice
; basal crevasse
; calving
; LANDSAT
; Pine island glaciers
; rifting
; Ice
英文摘要: Pine Island Glacier has undergone several major iceberg calving events over the past decades. These typically occurred when a rift at the heavily fractured shear margin propagated across the width of the ice shelf. This type of calving is common on polar ice shelves, with no clear connection to ocean-ice dynamic forcing. In contrast, we report on the recent development of multiple rifts initiating from basal crevasses in the center of the ice shelf, resulted in calving further upglacier than previously observed. Coincident with rift formation was the sudden disintegration of the ice mélange that filled the northern shear margin, resulting in ice sheet detachment from this margin. Examination of ice velocity suggests that this internal rifting resulted from the combination of a change in ice shelf stress regime caused by disintegration of the mélange and intensified melting within basal crevasses, both of which may be linked to ocean forcing. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004045160&doi=10.1002%2f2016GL071360&partnerID=40&md5=24e10b46b5afdfcfd30e1396728463d5
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9373
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: Byrd Polar and Climate Research Center, Ohio State University, Columbus, OH, United States
Recommended Citation:
Jeong S.,Howat I.M.,Bassis J.N.. Accelerated ice shelf rifting and retreat at Pine Island Glacier, West Antarctica[J]. Geophysical Research Letters,2016-01-01,43(22).