If you are interested in participating or organizing an ISMASS event, please contact Catherine Ritz, the ISMASS Chair.
Churchill College, Cambridge, UK
16 August 2015
7-10 July 2015
The major contribution to future sea level change is likely to come from melting of the polar ice sheets. Considerable uncertainty exists as to how Antarctica and Greenland will change in the coming decades, however, limiting our ability to predict sea level rise with certainty. In this session established information and new knowledge of global sea-level, based on measurements of both the Antarctic and Greenland ice sheets, and quantification of uncertainty, will be discussed to provide a state-of-art account of future sea level change, and the cryospheric response to climate and ocean warming.
Conveners: Martin Siegert, Sylvie Charbit, Tony Payne, Catherine Ritz, Don Blankenship, Frank Pattyn and Sun Bo.
This session will be on Tuesday 7th July and will comprise four invited talks on sea level and its projection, and ice sheet contributions and uncertainties. There will also be a poster session for which abstract submission is currently open.
This session is supported by ISMASS. The call for contribution is open until March 10. More information can be found here: http://www.commonfuture-paris2015.org/How-to-Contribute/Parallel-Sessions/Parallel-Sessions-Themes.htm
Contact Catherine Ritz
Monday, 25 August 2014
Auckland, New Zealand
The objective was to stimulate the ice-sheet community to improve methods and agree on common framework when producing ice-sheet mass balance model projections for the next 100 years.
This meeting included a report by Ryan Walker on the outputs of the "Ice sheet MIP for CMIP6" workshop that was in July 2014.
Projections of ice sheets mass balance over the next centuries strongly depend on the atmospheric and oceanic forcings. During the previous IPCC assessment (AR5), several groups produced projections but the methods to force the ice sheets models differed substantially. One difficulty comes from the fact that, in the framework of IPCC, atmospheric and oceanic fields from coupled AOGCMs are necessary but are available only by the end of an IPCC Assessment, too late to be used by ice sheet modelers for their own simulations in the corresponding report. For the last IPCC (AR5) report, this reduced for instance the number of ice sheet simulations done with an RCP8.5 scenario. Methods used to initialize ice sheet models, to downscale AOGCM fields, to take into account surface mass balance-elevation feedbacks and to use ocean characteristics to initiate dynamic response of the ice sheets (calving and grounding line retreat) are other examples that have been treated very differently by the various groups. We should now take advantage of the variety of methods applied during IPCC AR5 to compare them and evaluate their impact on the results. The objective is to improve the methods and agree on common framework when producing ice-sheet mass balance model projections for the next 100 years. This should help to derive realistic ranges of uncertainties in ice sheet projections.
September 2014 arranged by Andy Shepherd.
27-29 October 2014
New York University Campus in Abu Dhabi, United Arab Emirates.
[Website and meeting notes]
7 October 2013
Presented at the International Glaciological Society Conference
July 27-31, 2009
5-7 July 2008
St Petersburg, Russia