DOI: 10.1002/2016GL069511
论文题名: Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier
作者: Langley E.S. ; Leeson A.A. ; Stokes C.R. ; Jamieson S.S.R.
刊名: Geophysical Research Letters
ISSN: 0094-8732
EISSN: 1944-8463
出版年: 2016
卷: 43, 期: 16 起始页码: 8563
结束页码: 8571
语种: 英语
英文关键词: drainage
; East Antarctic glaciology
; supraglacial channels
; supraglacial lakes
Scopus关键词: Drainage
; Glaciers
; Lakes
; Sea level
; Antarctic Peninsula
; East Antarctic glaciology
; East antarctica
; Greenland Ice Sheet
; Lake evolutions
; Meteorological records
; Optical satellite images
; Supraglacial channels
; Ice
英文摘要: Supraglacial lakes are known to influence ice melt and ice flow on the Greenland ice sheet and potentially cause ice shelf disintegration on the Antarctic Peninsula. In East Antarctica, however, our understanding of their behavior and impact is more limited. Using >150 optical satellite images and meteorological records from 2000 to 2013, we provide the first multiyear analysis of lake evolution on Langhovde Glacier, Dronning Maud Land (69°11′S, 39°32′E). We mapped 7990 lakes and 855 surface channels up to 18.1 km inland (~670 m above sea level) from the grounding line and document three pathways of lake demise: (i) refreezing, (ii) drainage to the englacial/subglacial environment (on the floating ice), and (iii) overflow into surface channels (on both the floating and grounded ice). The parallels between these mechanisms, and those observed on Greenland and the Antarctic Peninsula, suggest that lakes may similarly affect rates and patterns of ice melt, ice flow, and ice shelf disintegration in East Antarctica. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983288535&doi=10.1002%2f2016GL069511&partnerID=40&md5=c5ce5396372affc70961f45de2300423
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9695
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 Geography, Durham University, Durham, United Kingdom
Recommended Citation:
Langley E.S.,Leeson A.A.,Stokes C.R.,et al. Seasonal evolution of supraglacial lakes on an East Antarctic outlet glacier[J]. Geophysical Research Letters,2016-01-01,43(16).