The configuration of Northern Hemisphere ice sheets through the Quaternary
Batchelor, Christine L.
Murton, Della K.
Gibbard, Philip L.
Murton, Julian B.
Nature Publishing Group UK
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Batchelor, C. L., Margold, M., Krapp, M., Murton, D. K., Dalton, A. S., Gibbard, P. L., Stokes, C. R., et al. (2019). The configuration of Northern Hemisphere ice sheets through the Quaternary. Nature Communications, 10 (1)https://doi.org/10.1038/s41467-019-11601-2
Abstract: Our understanding of how global climatic changes are translated into ice-sheet fluctuations and sea-level change is currently limited by a lack of knowledge of the configuration of ice sheets prior to the Last Glacial Maximum (LGM). Here, we compile a synthesis of empirical data and numerical modelling results related to pre-LGM ice sheets to produce new hypotheses regarding their extent in the Northern Hemisphere (NH) at 17 time-slices that span the Quaternary. Our reconstructions illustrate pronounced ice-sheet asymmetry within the last glacial cycle and significant variations in ice-marginal positions between older glacial cycles. We find support for a significant reduction in the extent of the Laurentide Ice Sheet (LIS) during MIS 3, implying that global sea levels may have been 30–40 m higher than most previous estimates. Our ice-sheet reconstructions illustrate the current state-of-the-art knowledge of pre-LGM ice sheets and provide a conceptual framework to interpret NH landscape evolution.
Article, /704/106/125, /704/106/413, article
External DOI: https://doi.org/10.1038/s41467-019-11601-2
This record's URL: https://www.repository.cam.ac.uk/handle/1810/309263