Publications by authors named "G J PAXMAN"
The East Antarctic Ice Sheet (EAIS) has its origins ca. 34 million years ago. Since then, the impact of climate change and past fluctuations in the EAIS margin has been reflected in periods of extensive vs.
View Article and Find Full Text PDFArticle Synopsis
- The East Antarctic Ice Sheet holds about 52 meters of sea-level equivalent glacier ice and is generally considered less vulnerable to climate change than its counterparts in West Antarctica and Greenland.
- Recent observations indicate some regions of the East Antarctic Ice Sheet are losing mass, compelling a reassessment of its response to climate change.
- While projections suggest that the ice sheet may maintain a balance with increased accumulation in the 21st century, high-emission scenarios could lead to significant ice loss and sea-level rise after 2100, with efforts to limit warming to below 2 degrees Celsius potentially mitigating this risk.
The land surface beneath the Greenland and Antarctic Ice Sheets is isostatically suppressed by the mass of the overlying ice. Accurate computation of the land elevation in the absence of ice is important when considering, for example, regional geodynamics, geomorphology, and ice sheet behaviour. Here, we use contemporary compilations of ice thickness and lithospheric effective elastic thickness to calculate the fully re-equilibrated isostatic response of the solid Earth to the complete removal of the Greenland and Antarctic Ice Sheets.
View Article and Find Full Text PDF