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dc.contributor.authorYoon, Seung-Tae
dc.contributor.authorLee, Won Sang
dc.contributor.authorNam, Sung Hyun
dc.contributor.authorLee, Choon-Ki
dc.contributor.authorYun, Sukyoung
dc.contributor.authorHeywood, Karen
dc.contributor.authorBoehme, Lars
dc.contributor.authorZheng, Yixi
dc.contributor.authorLee, Inhee
dc.contributor.authorChoi, Yeon
dc.contributor.authorJenkins, Adrian
dc.contributor.authorJin, Emilia
dc.contributor.authorLarter, Robert
dc.contributor.authorWellner, Julia
dc.contributor.authorDutrieux, Pierre
dc.contributor.authorBradley, Alexander
dc.identifier.citationYoon , S-T , Lee , W S , Nam , S H , Lee , C-K , Yun , S , Heywood , K , Boehme , L , Zheng , Y , Lee , I , Choi , Y , Jenkins , A , Jin , E , Larter , R , Wellner , J , Dutrieux , P & Bradley , A 2022 , ' Ice front retreat reconfigures meltwater-driven gyres modulating ocean heat delivery to an Antarctic ice shelf ' , Nature Communications , vol. 13 , 306 .
dc.descriptionThis study was sponsored by a research grant from the Korean Ministry of Oceans and Fisheries (KIMST20190361; PM21020) and supported by the National Science Foundation and Natural Environment Research Council (NERC: Grants NE/S006419/1 and NE/S006591/1) for the TARSAN and the THOR projects, components of the International Thwaites Glacier Collaboration (ITGC). ITGC Contribution No. ITGC-061.en
dc.description.abstractPine Island Ice Shelf (PIIS) buttresses the Pine Island Glacier, the key contributor to sea-level rise. PIIS has thinned owing to ocean-driven melting, and its calving front has retreated, leading to buttressing loss. PIIS melting depends primarily on the thermocline variability in its front. Furthermore, local ocean circulation shifts adjust heat transport within Pine Island Bay (PIB), yet oceanic processes underlying the ice front retreat remain unclear. Here, we report a PIB double-gyre that moves with the PIIS calving front and hypothesise that it controls ocean heat input towards PIIS. Glacial melt generates cyclonic and anticyclonic gyres near and off PIIS, and meltwater outflows converge into the anticyclonic gyre with a deep-convex-downward thermocline. The double-gyre migrated eastward as the calving front retreated, placing the anticyclonic gyre over a shallow seafloor ridge, reducing the ocean heat input towards PIIS. Reconfigurations of meltwater-driven gyres associated with moving ice boundaries might be crucial in modulating ocean heat delivery to glacial ice.
dc.relation.ispartofNature Communicationsen
dc.subjectGE Environmental Sciencesen
dc.subjectQE Geologyen
dc.titleIce front retreat reconfigures meltwater-driven gyres modulating ocean heat delivery to an Antarctic ice shelfen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.description.statusPeer revieweden

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