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

• Main Authors: Menviel, Laurie, Capron, Emilie, Govin, Aline, Dutton, Andrea, Tarasov, Lev, Abe-Ouchi, Ayako, Drysdale, Russell N, Gibbard, Philip L, Gregoire, Lauren, He, Feng, Ivanovic, Ruza F, Kageyama, Masa, Kawamura, Kenji, Landais, Amaelle, Otto-Bliesner, Bette L, Oyabu, Ikumi, Tzedakis, Polychronis C, Wolff, Eric, Zhang, Xu
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus GmbH 2019
• Subjects: 37 Earth Sciences; 3709 Physical Geography and Environmental Geoscience; 3705 Geology; 13 Climate Action; Ice Sheet
• Online Access: https://dx.doi.org/10.17863/cam.43224; https://www.repository.cam.ac.uk/handle/1810/296179

The penultimate deglaciation (PDG, ∼138–128 thousand years before present, hereafter ka) is the transition from the penultimate glacial maximum (PGM) to the Last Interglacial (LIG, ∼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. A deglaciation working group has recently been set up as part of the Paleoclimate ...