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Aerogeophysical characterization of an active subglacial lake system in the David Glacier catchment, Antarctica

Cited 3 time in wos
Cited 3 time in scopus

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dc.contributor.authorLindzey, Laura E.-
dc.contributor.authorBeem, Lucas H.-
dc.contributor.authorYoung, Duncan A.-
dc.contributor.authorQuartini, Enrica-
dc.contributor.authorBlankenship, Donald D.-
dc.contributor.authorLee, Choon-Ki-
dc.contributor.authorLee, Won Sang-
dc.contributor.authorLee, Jong Ik-
dc.contributor.authorLee, Joohan-
dc.date.accessioned2021-12-06T05:26:56Z-
dc.date.available2021-12-06T05:26:56Z-
dc.date.issued2020-07-15-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/13061-
dc.description.abstractIn 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 surface-elevation-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.en_US
dc.languageEnglishen_US
dc.language.isoenen_US
dc.subjectPhysical Geographyen_US
dc.subjectGeologyen_US
dc.subject.classificationJang Bogo Stationen_US
dc.titleAerogeophysical characterization of an active subglacial lake system in the David Glacier catchment, Antarcticaen_US
dc.title.alternative남극 데이비드 빙하 분지 활동성 빙저호에 관한 항공지구물리학적 특성 규명en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationLindzey, Laura E., et al. 2020. "Aerogeophysical characterization of an active subglacial lake system in the David Glacier catchment, Antarctica". <em>CRYOSPHERE</em>, 14(7): 2217-2233.-
dc.citation.titleCRYOSPHEREen_US
dc.citation.volume14en_US
dc.citation.number7en_US
dc.identifier.doi10.5194/tc-14-2217-2020-
dc.citation.startPage2217en_US
dc.citation.endPage2233en_US
dc.description.articleClassificationSCIE-
dc.description.jcrRateJCR 2018:6.122en_US
dc.subject.keywordBENEATH THWAITES GLACIERen_US
dc.subject.keywordRADAR-SOUNDING DATAen_US
dc.subject.keywordWEST ANTARCTICAen_US
dc.subject.keywordICE STREAM;en_US
dc.subject.keywordBASAL CONDITIONSen_US
dc.subject.keywordGROUNDING-ZONEen_US
dc.subject.keywordBOUNDARY-CONDITIONSen_US
dc.subject.keywordEAST ANTARCTICAen_US
dc.subject.keywordWATER-SYSTEMen_US
dc.subject.keywordMASS-BALANCEen_US
dc.identifier.localId2020-0101-
dc.identifier.scopusid2-s2.0-85089602019-
dc.identifier.wosid000551393200001-
Appears in Collections  
2019-2020, Land-Ice/Ocean Network Exploration with Semiautonomous Systems: Thwaites Glacier (LIONESS/TG) - Toward understanding the fate of the Thwaites Glacier by abrupt collapse and its impact on global sea level changes - (19-20) / Lee, Won Sang (PM19020)
2020-2020, The Antarctic Korean Route Expedition and the support system construction for inland researches (20-20) / Lee, Khanghyun (PE20020)
2020-2020, Research on Antarctic ice bed topography (BEDMAP) through the development of aviation exploration systems (20-20) / Lee, Joohan (PE20050)
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