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 Sowers, Anders Svensson, Bo Vinther, Diana Vladimirova, Gisela Winckler, Mai Winstrup, Paul Vallelonga

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 languageEnglish (US)
Article number4494
JournalNature communications
Volume10
Issue number1
DOIs
StatePublished - Dec 1 2019

Fingerprint

Powder magnetic cores
Greenland
Ice Cover
Ice
Dust
ice
dust
time measurement
Climate
Oceans and Seas
Sea level
sea level
climate
margins
coasts
caps
Particles (particulate matter)
Coastal zones
Rocks
rocks

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Simonsen, M. F., Baccolo, G., Blunier, T., Borunda, A., Delmonte, B., Frei, R., ... Vallelonga, P. (2019). East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat. Nature communications, 10(1), [4494]. https://doi.org/10.1038/s41467-019-12546-2
Simonsen, Marius Folden ; Baccolo, Giovanni ; Blunier, Thomas ; Borunda, Alejandra ; Delmonte, Barbara ; Frei, Robert ; Goldstein, Steven ; Grinsted, Aslak ; Kjær, Helle Astrid ; Sowers, Todd ; Svensson, Anders ; Vinther, Bo ; Vladimirova, Diana ; Winckler, Gisela ; Winstrup, Mai ; Vallelonga, Paul. / East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat. In: Nature communications. 2019 ; Vol. 10, No. 1.
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Simonsen, MF, Baccolo, G, Blunier, T, Borunda, A, Delmonte, B, Frei, R, Goldstein, S, Grinsted, A, Kjær, HA, Sowers, T, Svensson, A, Vinther, B, Vladimirova, D, Winckler, G, Winstrup, M & Vallelonga, P 2019, 'East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat', Nature communications, vol. 10, no. 1, 4494. https://doi.org/10.1038/s41467-019-12546-2

East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat. / Simonsen, Marius Folden; Baccolo, Giovanni; Blunier, Thomas; Borunda, Alejandra; Delmonte, Barbara; Frei, Robert; Goldstein, Steven; Grinsted, Aslak; Kjær, Helle Astrid; Sowers, Todd; Svensson, Anders; Vinther, Bo; Vladimirova, Diana; Winckler, Gisela; Winstrup, Mai; Vallelonga, Paul.

In: Nature communications, Vol. 10, No. 1, 4494, 01.12.2019.

Research output: Contribution to journalArticle

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AU - Sowers, Todd

AU - Svensson, Anders

AU - Vinther, Bo

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