Allie Coonin (Brown University, Providence, USA) and Tamara Pico (University of California, Santa Cruz, USA) will present: "Transient Earth Rheology Temporarily Slows West Antarctic Ice Retreat in Future Climate Projections" Projections of sea-level change and Antarctic Ice Sheet (AIS) stability under anthropogenic climate change hinge upon accurately describing physical feedbacks that link ice dynamics (marine […]

Achraf Koulali (Newcastle University, UK) and Matt King (University of Tasmania, Australia) will present: "Sensitivity of Antarctic GPS time series to varying surface mass balance loads, and implications for estimates of Glacial Isostatic Adjustment" Antarctic Global Positioning System (GPS) vertical time series exhibit non-linear signals across a wide range of temporal scales, complicating the interpretation […]

Here we show that GIA models with realistic 3-D mantle viscosity derived from seismic structures with an effective activation energy of 300–400 kJ/mol and a weak asthenosphere fit paleo-sea level data in North America better than several widely used 1-D GIA models.

Alexandre Couhert and Maxime Rousselet, both at Centre national d'études spatiales (CNES), Toulouse, France will present Part I (Alexandre): Satellite altimetry sea level rise estimates and ocean mass trends derived from satellite gravimetry both rely on solid Earth/pole tides and GIA models, to remove these signals from GRACE/-FO and altimeter based sea surface height observations, […]

Jacky Austermann and Ben Stoker, both at Columbia University, Palisades, USA, will present Proglacial Lakes as Windows into GIA and Drivers of Ice-Sheet and Climate Chang Part I (Jacky): Proglacial lakes are lakes that form around the margins of ice sheets. Both talks will focus on proglacial lakes around the Laurentide Ice Sheet. In the […]