the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
The influence of the synoptic regime on stable water isotopes in precipitation at Dome C, East Antarctica
Elisabeth Schlosser
Anna Dittmann
Barbara Stenni
Jordan G. Powers
Kevin W. Manning
Valérie Masson-Delmotte
Mauro Valt
Anselmo Cagnati
Paolo Grigioni
Claudio Scarchilli
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Little Dome C Patchand
North Patch.
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In Antarctica, supraglacial lakes often form near grounding lines due to surface melting. We model viscoelastic tidal flexure in these regions to assess its contribution to lake drainage via hydrofracturing. Results show that tidal flexure and lake-water pressure jointly control drainage near unconfined grounding lines. Sensitivity analysis indicates the importance of the Maxwell time of ice in modulating the tidal response.
We investigated the influence of several regional climate models on the Antarctic Ice Sheet when applied as forcing for the Parallel Ice Sheet Model (PISM). Our study shows that the choice of regional climate model forcing results in uncertainties of around a tenth of those in future sea level rise projections and also affects the extent of grounding line retreat in West Antarctica.