Limited Retreat of the Wilkes Basin Ice Sheet During the Last Interglacial

Sutter, J.; Eisen, O.; Werner, M.; Grosfeld, K.; Kleiner, T.; Fischer, H. (2020). Limited Retreat of the Wilkes Basin Ice Sheet During the Last Interglacial. Geophysical Research Letters, 47(13) American Geophysical Union 10.1029/2020GL088131

Preview

Text sutter20grl_wilkesicestreamtalosdome.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (16MB) | Preview

The response of the East Antarctic Ice Sheet to global warming represents a major source of uncertainty in sea‐level projections. Thinning of the East Antarctic George V and Sabrina Coast ice cover is currently taking place, and regional ice‐sheet instability episodes might have been triggered in past warm climates. However, the magnitude of ice retreat in the past cannot yet be quantitatively derived from paleo‐proxy records alone. We propose that a runaway retreat of the George V coast grounding line and subsequent instability of the Wilkes Basin ice sheet would either leave a clear imprint on the water isotope composition in the Talos Dome region or prohibit a Talos Dome ice‐core record from the Last Interglacial altogether. Testing this hypothesis, our ice‐sheet model simulations suggest that Wilkes Basin ice‐sheet retreat remained relatively limited during the Last Interglacial and provide a constraint on Last Interglacial East Antarctic grounding line stability.

Interest & Impact

Downloads

153 since deposited on 16 Jul 2020
20 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item