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Millennial scale feedbacks determine the shape and rapidity of glacial termination

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  • Stephen Barker

    (Cardiff University)

  • Gregor Knorr

    (Alfred Wegener Institute)

Abstract

Within the Late Pleistocene, terminations describe the major transitions marking the end of glacial cycles. While it is established that abrupt shifts in the ocean/atmosphere system are a ubiquitous component of deglaciation, significant uncertainties remain concerning their specific role and the likelihood that terminations may be interrupted by large-amplitude abrupt oscillations. In this perspective we address these uncertainties in the light of recent developments in the understanding of glacial terminations as the ultimate interaction between millennial and orbital timescale variability. Innovations in numerical climate simulation and new geologic records allow us to highlight new avenues of research and identify key remaining uncertainties such as sea-level variability.

Suggested Citation

  • Stephen Barker & Gregor Knorr, 2021. "Millennial scale feedbacks determine the shape and rapidity of glacial termination," Nature Communications, Nature, vol. 12(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22388-6
    DOI: 10.1038/s41467-021-22388-6
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    Cited by:

    1. Heather M. Stoll & Isabel Cacho & Edward Gasson & Jakub Sliwinski & Oliver Kost & Ana Moreno & Miguel Iglesias & Judit Torner & Carlos Perez-Mejias & Negar Haghipour & Hai Cheng & R. Lawrence Edwards, 2022. "Rapid northern hemisphere ice sheet melting during the penultimate deglaciation," Nature Communications, Nature, vol. 13(1), pages 1-16, December.
    2. Gavin Piccione & Terrence Blackburn & Slawek Tulaczyk & E. Troy Rasbury & Mathis P. Hain & Daniel E. Ibarra & Katharina Methner & Chloe Tinglof & Brandon Cheney & Paul Northrup & Kathy Licht, 2022. "Subglacial precipitates record Antarctic ice sheet response to late Pleistocene millennial climate cycles," Nature Communications, Nature, vol. 13(1), pages 1-14, December.

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