The penultimate deglaciation: Protocol for Paleoclimate Modelling Intercomparison Project (PMIP) phase 4 transient numerical simulations between 140 and 127 ka, version 1.0

• Published in: Geoscientific Model Development
• Other Authors: Menviel, Laurie (author), Capron, Emilie (author), Govin, Aline (author), Dutton, Andrea (author), Tarasov, Lev (author), Abe-Ouchi, Ayako (author), Drysdale, Russell N. (author), Gibbard, Philip L. (author), Gregoire, Lauren (author), He, Feng (author), Ivanovic, Ruza F. (author), Kageyama, Masa (author), Kawamura, Kenji (author), Landais, Amaelle (author), Otto-Bliesner, Bette L. (author), Oyabu, Ikumi (author), Tzedakis, Polychronis C. (author), Wolff, Eric (author), Zhang, Xu (author)
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2019
• Subjects: Ice Sheet
• Online Access: https://doi.org/10.5194/gmd-12-3649-2019

The penultimate deglaciation (PDG, similar to 138-128 thousand years before present, hereafter ka) is the transition from the penultimate glacial maximum (PGM) to the Last Interglacial (LIG, similar to 129-116 ka). The LIG stands out as one of the warmest interglacials of the last 800 000 years (hereafter kyr), with high-latitude temperature warmer than today and global sea level likely higher by at least 6 m. Considering the transient nature of the Earth system, the LIG climate and ice-sheet evolution were certainly influenced by the changes occurring during the penultimate deglaciation. It is thus important to investigate, with coupled atmosphere-ocean general circulation models (AOGCMs), the climate and environmental response to the large changes in boundary conditions (i.e. orbital configuration, atmospheric greenhouse gas concentrations, ice-sheet geometry and associated meltwater fluxes) occurring during the penultimate deglaciation. 1852977 AGS-1401803