globalchange  > 气候变化与战略
DOI: 10.5194/tc-14-2217-2020
论文题名:
Aerogeophysical characterization of an active subglacial lake system in the David Glacier catchment, Antarctica
作者: Lindzey L.E.; Beem L.H.; Young D.A.; Quartini E.; Blankenship D.D.; Lee C.-K.; Sang Lee W.; Ik Lee J.; Lee J.
刊名: Cryosphere
ISSN: 19940416
出版年: 2020
卷: 14, 期:7
起始页码: 2217
结束页码: 2233
语种: 英语
英文关键词: altimeter ; altimetry ; boundary condition ; catchment ; geophysical method ; glacier ; ICESat ; subglacial environment ; Antarctica
英文摘要: In the 2016 2017 austral summer, the University of Texas Institute for Geophysics (UTIG) and the Korea Polar Research Institute (KOPRI) collaborated to perform a helicopter-based radar and laser altimeter survey of lower David Glacier with the goals of characterizing the subglacial water distribution that supports a system of active subglacial lakes and informing the site selection for a potential subglacial access drilling project. This survey overlaps with and expands upon an earlier survey of the Drygalski Ice Tongue and the David Glacier grounding zone from 2011 and 2012 to create a 5 km resolution survey extending 200 km upstream from the grounding zone. The surveyed region covers two active subglacial lakes and includes reflights of ICESat ground tracks that extend the surface elevation record in the region. This is one of the most extensive aerogeophysical surveys of an active lake system and provides higher-resolution boundary conditions and basal characterizations that will enable process studies of these features. This paper introduces a new helicopter-mounted ice-penetrating radar and laser altimetry system, notes a discrepancy between the original surfaceelevation- derived lake outlines and locations of possible water collection based on basal geometry and hydraulic potential, and presents radar-based observations of basal conditions that are inconsistent with large collections of ponded water despite laser altimetry showing that the hypothesized active lakes are at a highstand. © 2020 EDP Sciences. All rights reserved.
Citation statistics:
被引频次[WOS]:7   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164525
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: University of Texas Institute for Geophysics, University of Texas at Austin, Austin, TX, United States; Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States; Montana State University, Bozeman, Montana, United States; Unit of Ice Sheet and Sea Level Changes, Korea Polar Research Institute, Incheon, 21990, South Korea; Division of Polar Earth-System Sciences, Korea Polar Research Institute, Incheon, 21990, South Korea; Division of Polar Technology, Korea Polar Research Institute, Incheon, 21990, South Korea; Department of Ocean Engineering, University of Washington Applied Physics Laboratory, Seattle, WA, United States

Recommended Citation:
Lindzey L.E.,Beem L.H.,Young D.A.,et al. Aerogeophysical characterization of an active subglacial lake system in the David Glacier catchment, Antarctica[J]. Cryosphere,2020-01-01,14(7)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Lindzey L.E.]'s Articles
[Beem L.H.]'s Articles
[Young D.A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Lindzey L.E.]'s Articles
[Beem L.H.]'s Articles
[Young D.A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Lindzey L.E.]‘s Articles
[Beem L.H.]‘s Articles
[Young D.A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.