East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat.

Marius Folden Simonsen; Giovanni Baccolo; Thomas Blunier; Alejandra Borunda; Barbara Delmonte; Robert Frei; Steven  Goldstein; Aslak Grinsted; Helle Astrid Kjær; Todd A. Sowers; Anders Svensson; Bo Møllesøe Vinther; Diana Vladimirova; Gisela Winckler; Mai Winstrup; Paul Travis Vallelonga

doi:10.1038/s41467-019-12546-2

East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat.

Marius Folden Simonsen, Giovanni Baccolo, Thomas Blunier, Alejandra Borunda, Barbara Delmonte, Robert Frei, Steven Goldstein, Aslak Grinsted, Helle Astrid Kjær, Todd A. Sowers, Anders Svensson, Bo Møllesøe Vinther, Diana Vladimirova, Gisela Winckler, Mai Winstrup, Paul Travis Vallelonga

Climate and Geophysics

17 Citations (Scopus)

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Abstract

Accurate estimates of the past extent of the Greenland ice sheet provide critical constraints for ice sheet models used to determine Greenland’s response to climate forcing and contribution to global sea level. Here we use a continuous ice core dust record from the Renland ice cap on the east coast of Greenland to constrain the timing of changes to the ice sheet margin and relative sea level over the last glacial cycle. During the Holocene and the previous interglacial period (Eemian) the dust record was dominated by coarse particles consistent with rock samples from central East Greenland. From the coarse particle concentration record we infer the East Greenland ice sheet margin advanced from 113.4 ± 0.4 to 111.0 ± 0.4 ka BP during the glacial onset and retreated from 12.1 ± 0.1 to 9.0 ± 0.1 ka BP during the last deglaciation. These findings constrain the possible response of the Greenland ice sheet to climate forcings.

Original language	English
Article number	4494
Journal	Nature Communications
Volume	10
Number of pages	8
ISSN	2041-1723
DOIs	https://doi.org/10.1038/s41467-019-12546-2
Publication status	Published - 1 Dec 2019

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Simonsen, M. F., Baccolo, G., Blunier, T., Borunda, A., Delmonte, B., Frei, R., Goldstein, S., Grinsted, A., Kjær, H. A., Sowers, T. A., Svensson, A., Vinther, B. M., Vladimirova, D., Winckler, G., Winstrup, M., & Vallelonga, P. T. (2019). East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat. Nature Communications, 10, [4494]. https://doi.org/10.1038/s41467-019-12546-2

Simonsen, MF, Baccolo, G, Blunier, T, Borunda, A, Delmonte, B, Frei, R, Goldstein, S, Grinsted, A , Kjær, HA, Sowers, TA, Svensson, A , Vinther, BM, Vladimirova, D, Winckler, G, Winstrup, M & Vallelonga, PT 2019, 'East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat.', Nature Communications, vol. 10, 4494. https://doi.org/10.1038/s41467-019-12546-2

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title = "East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat.",

abstract = "Accurate estimates of the past extent of the Greenland ice sheet provide critical constraints for ice sheet models used to determine Greenland{\textquoteright}s response to climate forcing and contribution to global sea level. Here we use a continuous ice core dust record from the Renland ice cap on the east coast of Greenland to constrain the timing of changes to the ice sheet margin and relative sea level over the last glacial cycle. During the Holocene and the previous interglacial period (Eemian) the dust record was dominated by coarse particles consistent with rock samples from central East Greenland. From the coarse particle concentration record we infer the East Greenland ice sheet margin advanced from 113.4 ± 0.4 to 111.0 ± 0.4 ka BP during the glacial onset and retreated from 12.1 ± 0.1 to 9.0 ± 0.1 ka BP during the last deglaciation. These findings constrain the possible response of the Greenland ice sheet to climate forcings.",

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AU - Simonsen, Marius Folden

AU - Baccolo, Giovanni

AU - Blunier, Thomas

AU - Borunda, Alejandra

AU - Delmonte, Barbara

AU - Frei, Robert

AU - Goldstein, Steven

AU - Grinsted, Aslak

AU - Kjær, Helle Astrid

AU - Sowers, Todd A.

AU - Svensson, Anders

AU - Vinther, Bo Møllesøe

AU - Vladimirova, Diana

AU - Winckler, Gisela

AU - Winstrup, Mai

AU - Vallelonga, Paul Travis

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N2 - Accurate estimates of the past extent of the Greenland ice sheet provide critical constraints for ice sheet models used to determine Greenland’s response to climate forcing and contribution to global sea level. Here we use a continuous ice core dust record from the Renland ice cap on the east coast of Greenland to constrain the timing of changes to the ice sheet margin and relative sea level over the last glacial cycle. During the Holocene and the previous interglacial period (Eemian) the dust record was dominated by coarse particles consistent with rock samples from central East Greenland. From the coarse particle concentration record we infer the East Greenland ice sheet margin advanced from 113.4 ± 0.4 to 111.0 ± 0.4 ka BP during the glacial onset and retreated from 12.1 ± 0.1 to 9.0 ± 0.1 ka BP during the last deglaciation. These findings constrain the possible response of the Greenland ice sheet to climate forcings.

AB - Accurate estimates of the past extent of the Greenland ice sheet provide critical constraints for ice sheet models used to determine Greenland’s response to climate forcing and contribution to global sea level. Here we use a continuous ice core dust record from the Renland ice cap on the east coast of Greenland to constrain the timing of changes to the ice sheet margin and relative sea level over the last glacial cycle. During the Holocene and the previous interglacial period (Eemian) the dust record was dominated by coarse particles consistent with rock samples from central East Greenland. From the coarse particle concentration record we infer the East Greenland ice sheet margin advanced from 113.4 ± 0.4 to 111.0 ± 0.4 ka BP during the glacial onset and retreated from 12.1 ± 0.1 to 9.0 ± 0.1 ka BP during the last deglaciation. These findings constrain the possible response of the Greenland ice sheet to climate forcings.

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DO - 10.1038/s41467-019-12546-2

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VL - 10

JO - Nature Communications

JF - Nature Communications

M1 - 4494

ER -

East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat.

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