Articles | Volume 15, issue 7
The Cryosphere, 15, 3329–3354, 2021
https://doi.org/10.5194/tc-15-3329-2021
The Cryosphere, 15, 3329–3354, 2021
https://doi.org/10.5194/tc-15-3329-2021

Research article 20 Jul 2021

Research article | 20 Jul 2021

Holocene thinning of Darwin and Hatherton glaciers, Antarctica, and implications for grounding-line retreat in the Ross Sea

Trevor R. Hillebrand et al.

Data sets

An ice sheet model ensemble of the last deglaciation in the Ross Sea, Antarctica Trevor R. Hillebrand https://doi.org/10.5281/zenodo.4734615

Flow-band model simulations of the Darwin-Hatherton Glacier System, Antarctica since the Last Glacial Maximum Trevor R. Hillebrand, Michelle Koutnik, and Howard Conway https://doi.org/10.5281/zenodo.4735623

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Short summary
We present chronologies from Darwin and Hatherton glaciers to better constrain ice sheet retreat during the last deglaciation in the Ross Sector of Antarctica. We use a glacier flowband model and an ensemble of 3D ice sheet model simulations to show that (i) the whole glacier system likely thinned steadily from about 9–3 ka, and (ii) the grounding line likely reached the Darwin–Hatherton Glacier System at about 3 ka, which is ≥3.8 kyr later than was suggested by previous reconstructions.