Session

12.09.2017     10:00–12:00

Title:
MS25
Numerical methods towards next generation ice sheet modeling • Part I
Type:
Atmosphere / climate / weather models
Room:

Mass loss from the polar ice sheets is expected to have a significant contribution to future sea-level changes.  Scientifically meaningful projections of sea-level change in the 21st century and beyond require accurate and efficient computational modeling of the Greenland and Antarctic ice sheets.  This minisymposium will focus on numerical and computational methods for reliable, next-generation stand-alone and ice sheet models (ISMs).  A variety of topics in the areas of ice sheet modeling and simulation will be covered, including: improved modeling of critical physical processes, stable and efficient numerical methods for ISMs, performance-portability of ISMs to new and emerging computer architectures, model verification/validation, data assimilation, mesh generation/adaptation, ice sheet initialization, inverse problems arising in ice sheet modeling, uncertainty quantification, and coupling of ISMs to other climate components.

12.09.2017
10:00–12:00

Title:
MS25
Numerical methods towards next generation ice sheet modeling • Part I
Type:
Atmosphere / climate / weather models
Room:

Mass loss from the polar ice sheets is expected to have a significant contribution to future sea-level changes.  Scientifically meaningful projections of sea-level change in the 21st century and beyond require accurate and efficient computational modeling of the Greenland and Antarctic ice sheets.  This minisymposium will focus on numerical and computational methods for reliable, next-generation stand-alone and ice sheet models (ISMs).  A variety of topics in the areas of ice sheet modeling and simulation will be covered, including: improved modeling of critical physical processes, stable and efficient numerical methods for ISMs, performance-portability of ISMs to new and emerging computer architectures, model verification/validation, data assimilation, mesh generation/adaptation, ice sheet initialization, inverse problems arising in ice sheet modeling, uncertainty quantification, and coupling of ISMs to other climate components.


10:00–10:20
O124 Marine ice sheet retreat hastened by mechanical weakening of shear margins
Chris Borstad (Longyearbyen/NO)


10:20–10:40
O125 Anisotropic mesh adaptation for marine ice-sheet modelling
Fabien Gillet-Chaulet (Grenoble/FR)


10:40–11:00
O126 Improved discretization of grounding lines and calving fronts using an embedded-boundary approach in BISICLES
Daniel Martin (Berkeley/US)


11:20–11:40
O128 Efficient numerical ice-sheet simulations over long time spans
Gong Cheng (Uppsala/SE)


11:40–12:00
O129 Towards Stable Ice Sheet Simulations - Inf-sup Stabilization of the p-Stokes Equations on Anisotropic Meshes
Josefin Ahlkrona (Kiel/DE)