KOPRI Repository

Disintegration and acceleration of Thwaites Ice Shelf on the Amundsen Sea revealed from remote sensing measurements

Cited 2 time in scopus
Metadata Downloads

Full metadata record

DC FieldValueLanguage
dc.contributor.authorJin-Woo Kim-
dc.contributor.authorLee, Sang H.-
dc.contributor.authorHo Kyung Ha-
dc.contributor.authorSeung Hee Kim-
dc.contributor.authorDuk-jin Kim-
dc.description.abstractThwaites Ice Shelf in the Amundsen Sea is one of the biggest ice shelves in West Antarctica and is well known for significant mass changes. In the shear zone between Thwaites Glacier Tongue and its eastern ice shelf, shear stress forced by different flow rates of the ice shelves is causing the ice to break apart. A time series analysis of remote sensing data obtained by Landsat 7 Enhanced Thematic Mapper Plus (ETM+), TerraSAR-X, and airborne synthetic aperture radar (SAR) revealed that the shear zone has extended since 2006 and eventually disintegrated in 2008. We quantified the acceleration of Thwaites Ice Shelf with time by using the feature tracking method. The buttressing loss induced by the extension of the shear zone and progressive disintegration accelerated the flow of Thwaites Glacier Tongue, which in turn increased the shear stress on its eastern ice shelf. We determine causes of disintegration in the newly formed shear zone to be oceanic basal melting and structural weakening induced by Circumpolar Deep Water intrusion beneath the eastern ice shelf since 2000. The structural weakening was examined by using the density distribution of rifts and crevasses on the ice shelf, which were well identified from high-resolution SAR and optical satellite images.-
dc.titleDisintegration and acceleration of Thwaites Ice Shelf on the Amundsen Sea revealed from remote sensing measurements-
dc.title.alternative위성관측에 의한 아문젠해 쓰웨이트 빙붕의 감소에 관한 연구-
dc.identifier.bibliographicCitationJin-Woo Kim, et al. 2015. "Disintegration and acceleration of Thwaites Ice Shelf on the Amundsen Sea revealed from remote sensing measurements". <em>GISCIENCE & REMOTE SENSING</em>, 52(4): 498-509.-
dc.citation.titleGISCIENCE & REMOTE SENSING-
dc.description.jcrRateJCR 2013:60.86956521739131-
dc.subject.keywordThwaites Ice Shelf-
dc.subject.keywordairborne SAR-
dc.subject.keywordhidden crevasses-
Appears in Collections  
2014-2016, Physical and Bio-Geochemical Processes in the Amundsen Sea / Lee; Sang H.
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported


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