...
| Page Properties | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Abstract
...
Sea-level rise from shrinking glaciers and ice sheets is increasing. Observed acceleration in the contribution from Greenland and Antarctica is a concern, particularly for West Antarctica where the ice sheet’s geometric configuration is unstable to small perturbations.
ProSPect addresses DOE ice sheet model and Earth system model limitations that prevent accurate sea-level projections. Focus areas include (1) missing or inadequate model physics, (2) missing ISM and ESM coupling, (3) coupled ISM and ESM initialization methods, and (4) probabilistic sea-level projections.
In this poster we present recent efforts in 1) model initialization performed solving an optimization problem constrained by the ice sheet flow model and observations, 2) Verification and Validation through the development of the Land Ice V&V toolkit (LIVVkit), 3) Uncertainty Quantification study obtained performing an approximated Bayesian inference problem followed by forward simulations of posterior samples.