Several PMIP participants were in favour of using a new ice-sheet reconstruction for PMIP3/CMIP5 that better matches the geomorphologic and glaciological constraints than the ICE-5G reconstruction used in PMIP2.

Therefor we have decided to have

• a) A reference ice-sheet for the core CMIP5 simulations
• b) alternatives ice-sheets propositions for groups interested to run sensitivity experiments in order to discuss the sensitivity of the model results to the uncertainties in boundary conditions. If you are interested by participating to these coordinated sensitivity experiments, please contact Ayako Abe-Ouchi (abeouchi@ccsr.u-tokyo.ac.jp)

Several documents and figures, as well as discussion and comments from the community can be found on the PMIP ice-sheet discussion page Ice Sheet discussion

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