Predicting Ice Sheet and Climate Evolution at Extreme Scales (PISCEES)

Funding Program: 

Melting of the Greenland and Antarctic ice sheets is accelerating and the resulting fresh water input into the oceans will be the dominant contribution to future sea level rise as the Earth’s climate changes. The PISCEES project is developing better computer models of large ice sheets to improve future sea level rise projections. In particular, multi-scale formulations of ice sheet dynamics are being implemented to represent the wide range of spatial scales in a robust, accurate and scalable manner. In addition, PISCEES scientists are creating new tools and techniques for validating ice sheet simulation results against observations and providing estimates of the uncertainty surrounding future projections.

Project Term: 
Project Type: 
Laboratory Funded Research

Research Highlights:

A Comparison of 2D, First-Order and 3d, full-Stokes Modeling of Land Terminating Glaciers Highlight Presentation
A Matrix Dependent/Algebraic Multigrid Approach for Extruded Meshes With Applications to Ice Sheet Modeling Highlight Presentation
Albany/FELIX: A Parallel, Scalable and Robust, Finite Element, First-Order Stokes Approximation Ice Sheet Solver Highlight Presentation
Constraining Transient Ice Sheet Models with Sparse, Diverse Observations Highlight Presentation
Direct Observations of Evolving Subglacial Drainage Beneath the Greenland Ice Sheet Highlight Presentation
Inference & Prediction for the Antarctic Ice Sheet using Gaussian Approximations Highlight Presentation
Inversion of geothermal flux in a thermo-mechanically coupled nonlinear Stokes ice sheet model Highlight Presentation
Land Ice Verification and Validation (LIVV) Toolkit 1.0 Software Release Highlight Presentation
North Atlantic Warming and the Retreat of Greenland’s Outlet Glaciers Highlight Presentation
Scalability of the Albany/FELIX dynamical core for large-scale Greenland and Antarctica simulations Highlight Presentation
Stochastic Newton MCMC for an Inverse Ice Sheet Model Problem Highlight Presentation