Please note that this session was withdrawn and is no longer available in the respective programme. This withdrawal might have been the result of a merge with another session.

CR3.8

Bridging the gap between land-based cryosphere changes and local sea-level rise projections and impacts

Sea-level rise (SLR) is highly variable in space and time, as it results from a combination of many processes working at different temporal and spatial scales. In the 20th century, SLR was mainly caused by oceanic thermal expansion and the mass loss of glaciers. In recent decades, however, the two ice sheets of Antarctica and Greenland have increasingly contributed to SLR. As highlighted in the last Intergovernmental Panel on Climate Change assessment, the main uncertainty in projections of future SLR is our limited ability to model the dynamics of the Antarctic and Greenland ice sheets and robustly predict the potential emergence and rate of their collapse. Although the relative contribution of ice sheet mass loss to SLR will increase over the 21st Century, glaciers will continue to make a significant SLR contribution that must also be better quantified. Moreover, local SLR differs from global-mean change, so it is important to better understand and quantify the regional coastal implications in order to support relevant mitigation and adaptation strategies. This session aims at bridging the gap between scientific communities interested in projecting changes in the land-based cryosphere,
with fully quantified uncertainties, in order to produce robust global, regional and local projections of SLR on timescales from decades to multi-centennial and their implications.

Co-organized by
Convener: Gael Durand | Co-conveners: Tamsin Edwards, Robert Nicholls