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dc.contributor.authorBassis, J. N.
dc.contributor.authorBerg, B.
dc.contributor.authorCrawford, A. J.
dc.contributor.authorBenn, D. I.
dc.date.accessioned2021-06-25T13:30:12Z
dc.date.available2021-06-25T13:30:12Z
dc.date.issued2021-06-18
dc.identifier.citationBassis , J N , Berg , B , Crawford , A J & Benn , D I 2021 , ' Transition to marine ice cliff instability controlled by ice thickness gradients and velocity ' , Science , vol. 372 , no. 6548 , pp. 1342-1344 . https://doi.org/10.1126/science.abf6271en
dc.identifier.issn0036-8075
dc.identifier.otherPURE: 274710264
dc.identifier.otherPURE UUID: a3268da3-a3bb-4b86-930d-b4fa325f4ecf
dc.identifier.otherRIS: urn:FA94454AF7AB92881CB6EE7BFA8E81E3
dc.identifier.otherORCID: /0000-0002-3604-0886/work/95772347
dc.identifier.otherPubMed: 34140387
dc.identifier.otherScopus: 85108166079
dc.identifier.otherWOS: 000665616000035
dc.identifier.urihttps://hdl.handle.net/10023/23422
dc.descriptionFunding: This work is from the DOMINOS project, a component of the International Thwaites Glacier Collaboration (ITGC). Support came from NSF grant 1738896 and Natural Environment Research Council (NERC) grant NE/S006605/1. Logistics were provided by NSF–U.S. Antarctic Program and NERC–British Antarctic Survey. This study is ITGC contribution no. ITGC-044.en
dc.description.abstractPortions of ice sheets grounded deep beneath sea level can disintegrate if tall ice cliffs at the ice-ocean boundary start to collapse under their own weight. This process, called marine ice cliff instability, could lead to catastrophic retreat of sections of West Antarctica on decadal-to-century time scales. Here we use a model that resolves flow and failure of ice to show that dynamic thinning can slow or stabilize cliff retreat, but when ice thickness increases rapidly upstream from the ice cliff, there is a transition to catastrophic collapse. However, even if vulnerable locations like Thwaites Glacier start to collapse, small resistive forces from sea-ice and calved debris can slow down or arrest retreat, reducing the potential for sustained ice sheet collapse.
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofScienceen
dc.rightsCopyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1126/science.abf6271en
dc.subjectG Geography (General)en
dc.subjectNDASen
dc.subjectSDG 14 - Life Below Wateren
dc.subject.lccG1en
dc.titleTransition to marine ice cliff instability controlled by ice thickness gradients and velocityen
dc.typeJournal articleen
dc.contributor.sponsorNERCen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Geography & Sustainable Developmenten
dc.contributor.institutionUniversity of St Andrews. Environmental Change Research Groupen
dc.contributor.institutionUniversity of St Andrews. Bell-Edwards Geographic Data Instituteen
dc.identifier.doihttps://doi.org/10.1126/science.abf6271
dc.description.statusPeer revieweden
dc.identifier.grantnumberNE/S006605/1en


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