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Sensitivity of Pine Island Glacier to observed ocean forcing

Cited 55 time in wos
Cited 57 time in scopus

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dc.contributor.authorKnut, Christianson-
dc.contributor.authorBushuk, Mitchell-
dc.contributor.authorDutrieux, Pierre-
dc.contributor.authorParizek, Byron R.-
dc.contributor.authorJoughin, Ian R.-
dc.contributor.authorAlley, Richard B.-
dc.contributor.authorShean, David E.-
dc.contributor.authorAbrahamsen, E. Povl-
dc.contributor.authorAnandakrishnan, Sridhar-
dc.contributor.authorHeywood, Karen-
dc.contributor.authorKim, Tae-Wan-
dc.contributor.authorLee, SangHoon-
dc.contributor.authorNicholls, Keith-
dc.contributor.authorStanton, Tim-
dc.contributor.authorTruffer, Martin-
dc.contributor.authorWebber, Benjamin G. M.-
dc.contributor.authorJenkins, Adrian-
dc.contributor.authorJacobs, Stanley-
dc.contributor.authorBindschadler, Robert-
dc.contributor.authorHolland, David M.-
dc.coverage.spatialAmundsen Sea-
dc.date.accessioned2017-08-03T14:09:37Z-
dc.date.available2017-08-03T14:09:37Z-
dc.date.issued2016-
dc.description.abstractWe present subannual observations (2009?2014) of a major West Antarctic glacier (Pine Island Glacier) and the neighboring ocean. Ongoing glacier retreat and accelerated ice flow were likely triggered a few decades ago by increased ocean-induced thinning, which may have initiated marine ice sheet instability. Following a subsequent 60% drop in ocean heat content from early 2012 to late 2013, ice flow slowed, but by<4%, with flow recovering as the ocean warmed to prior temperatures. During this cold-ocean period, the evolving glacier-bed/ice shelf system was also in a geometry favorable to stabilization. However, despite a minor, temporary decrease in ice discharge, the basin-wide thinning signal did not change. Thus, as predicted by theory, once marine ice sheet instability is underway, a single transient high-amplitude ocean cooling has only a relatively minor effect on ice flow. The long-term effects of ocean temperature variability on ice flow, however, are not yet known.-
dc.languageEnglish-
dc.subjectGeology-
dc.subject.classificationAraon-
dc.titleSensitivity of Pine Island Glacier to observed ocean forcing-
dc.typeArticle-
dc.identifier.bibliographicCitationKnut, Christianson, et al. 2016. "Sensitivity of Pine Island Glacier to observed ocean forcing". <em>Geophysical Research Letters</em>, 43(20): 10817-10825.-
dc.citation.titleGeophysical Research Letters-
dc.citation.volume43-
dc.citation.number20-
dc.citation.page10817-10825.-
dc.identifier.doi10.1002/2016GL070500-
dc.coverage.x75°S-
dc.coverage.y102°W-
dc.subject.keywordAraon-
dc.coverage.degreeX-75-
dc.coverage.degreeY-102-
dc.identifier.scopusid2-s2.0-84995618138-
dc.identifier.wosid000388293800045-
Appears in Collections  
2014-2016, Physical and Bio-Geochemical Processes in the Amundsen Sea / Lee; Sang H. (PP15020; PP16020; PP14020)
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