Co-organized by CL4/OS1, co-sponsored by CliC
Convener: Frank Pattyn | Co-conveners: Konstanze HaubnerECSECS, Guðfinna Aðalgeirsdóttir, Helene Seroussi, Donald SlaterECSECS
| Attendance Thu, 07 May, 14:00–15:45 (CEST)

This session explores improvements in our understanding and quantification of past, present and future ice sheet and sea-level changes. We invite contributions about the following topics:

How to improve the reliability of the projections using observations (paleo and present), models and model intercomparison exercises (ISMIP6, and others); assessment of uncertainties and probability distributions of the ice sheets' contribution to sea level change; emerging processes; feedbacks coming from interactions between components (ice sheets, ocean, atmosphere, solid earth). We focus on the present and future (multi-centennial) Greenland and Antarctic ice sheets, but paleo-studies are encouraged if they shed a light on the mentioned topics.

This session is related to both ISMASS ( and ISMIP6 (

Public information:
There will be a chat during our session giving each presenter about 5 min. to answer questions.
The schedule is divided into more ISMASS and ISMIP6 related topics and will follow the following time line (which is fluently adapted if presenters are not present):
14:00 - 14:05 Introduction to the chat
14:05 - 14:10 D2555 Ben Galton-Fenzi - Progress towards coupling ice sheet and ocean models
14:10 - 14:15 D2566 Petra Langebroek - Tipping Points in Antarctic Climate Components (TiPACCs)
14:15 - 14:20 D2572 Nadine Wieters - Modular AWI-CM: An Earth System Model (ESM) prototype using the esm-interface library for a modular ESM coupling approach
14:20 - 14:25 D2558 Jon Bamber - Interpretation and Analysis of Projected Ice Sheet Contributions from a Structured Expert Judgement
14:25 - 14:30 D2557 Andrew Shepherd - Trends and projections in ice sheet mass balance
14:30 - 14:35 D2562 Yijing Lin - Antarctic Ice Sheet mass balance over the past decade from 2005 to 2016
14:35 - 14:40 D2569 Johanna Beckmann - How will the Greenland Ice Sheet develop under Extreme Melt Events?
14:40 - 14:45 D2565 Leo van Kampenhout - A regional atmospheric warming threshold for irreversible Greenland ice sheet mass loss
14:45 - 14:50 D2561 Christiaan van Dalum - Evaluation of a new snow albedo scheme in RACMO2 for the Greenland ice sheet
14:50 - 14:55 D2553 Charlotte Lang - Comparison of the surface mass and energy balance of CESM and MAR forced by CESM over Greenland: present and future
14:55 - 15:00 D2554 Nanna Bjørnholt Karlsson - Basal Melt of the Greenland Ice Sheet: The Invisible Mass Budget Term
15:00 - 15:05 D2551 Heiko Goelzer - The future sea-level contribution of the Greenland ice sheet: a multi-model ensemble study of ISMIP6
15:05 - 15:10 D2560 Tony Payne - Contrasting contributions to future sea level under CMIP5 and CMIP6 scenarios from the Greenland and Antarctic ice sheets
15:10 - 15:15 D2552 Tamsin Edwards - Quantifying uncertainties in the land ice contribution to sea level from ISMIP6 and GlacierMIP
15:15 - 15:20 D2568 Helene Seroussi - ISMIP6 Antarctica: a multi-model ensemble of the Antarctic ice sheet evolution over the 21st century
15:20 - 15:25 D2571 Martin Rückamp - Sensitivity of Greenland ice sheet projections to spatial resolution in higher-order simulations: the AWI contribution to ISMIP6-Greenland using ISSM
15:25 - 15:30 D2573 Thomas Kleiner - ISMIP6 Future Projections for Antarctica performed using the AWI PISM ice sheet model
15:30 - 15:35 D2570 Konstanze Haubner - Changes on Totten glacier dependent on oceanic forcing based on ISMIP6
15:35 - 15:40 D2556 Ronja Reese - The role of history and strength of the oceanic forcing in sea-level projections from Antarctica with the Parallel Ice Sheet Model

note: ISMASS and ISMIP6 homepages have been moved and are now available here:

Session assets

Session materials Download all presentations (111MB)