Large-scale features of Last Interglacial climate : Results from evaluating the lig127k simulations for the Coupled Model Intercomparison Project (CMIP6)-Paleoclimate Modeling Intercomparison Project (PMIP4)
Bette L. Otto-Bliesner,Esther C. Brady,Anni Zhao,Chris Brierley,Yarrow Axford,Emilie Capron,Aline Govin,Jeremy S. Hoffman,Jeremy S. Hoffman,Elizabeth B. Isaacs,Masa Kageyama,Paolo Scussolini,Polychronis C Tzedakis,Charles Williams,Eric W. Wolff,Ayako Abe-Ouchi,Pascale Braconnot,Silvana Ramos Buarque,Jian Cao,Anne de Vernal,Maria-Vittoria Guarino,Chuncheng Guo,Allegra N. LeGrande,Gerrit Lohmann,Katrin J. Meissner,Laurie Menviel,Polina Morozova,Kerim H. Nisancioglu,Kerim H. Nisancioglu,Ryouta O'ishi,David Salas y Mélia,Xaoxu Shi,Marie Sicard,Louise C. Sime,Christian Stepanek,Robert A. Tomas,Evgeny Volodin,Nicholas K. H. Yeung,Qiong Zhang,Zhongshi Zhang,Zhongshi Zhang,Weipeng Zheng +41 more
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TLDR
In this paper, a multi-model ensemble of 17 climate models, all of which have completed the Coupled Model Intercomparison Project (CMIP6) DECK (Diagnostic, Evaluation and Characterization of Klima) experiments, is presented.Abstract:
The modeling of paleoclimate, using physically based tools, is increasingly seen as a strong out-of-sample test of the models that are used for the projection of future climate changes. New to the Coupled Model Intercomparison Project (CMIP6) is the Tier 1 Last Interglacial experiment for 127 000 years ago (lig127k), designed to address the climate responses to stronger orbital forcing than the midHolocene experiment, using the same state-of-the-art models as for the future and following a common experimental protocol. Here we present a first analysis of a multi-model ensemble of 17 climate models, all of which have completed the CMIP6 DECK (Diagnostic, Evaluation and Characterization of Klima) experiments. The equilibrium climate sensitivity (ECS) of these models varies from 1.8 to 5.6 ∘C. The seasonal character of the insolation anomalies results in strong summer warming over the Northern Hemisphere continents in the lig127k ensemble as compared to the CMIP6 piControl and much-reduced minimum sea ice in the Arctic. The multi-model results indicate enhanced summer monsoonal precipitation in the Northern Hemisphere and reductions in the Southern Hemisphere. These responses are greater in the lig127k than the CMIP6 midHolocene simulations as expected from the larger insolation anomalies at 127 than 6 ka.
New synthesis for surface temperature and precipitation, targeted for 127 ka, have been developed for comparison to the multi-model ensemble. The lig127k model ensemble and data reconstructions are in good agreement for summer temperature anomalies over Canada, Scandinavia, and the North Atlantic and for precipitation over the Northern Hemisphere continents. The model–data comparisons and mismatches point to further study of the sensitivity of the simulations to uncertainties in the boundary conditions and of the uncertainties and sparse coverage in current proxy reconstructions.
The CMIP6–Paleoclimate Modeling Intercomparison Project (PMIP4) lig127k simulations, in combination with the proxy record, improve our confidence in future projections of monsoons, surface temperature, and Arctic sea ice, thus providing a key target for model evaluation and optimization.read more
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The contribution of melt ponds to enhanced Arctic sea-ice melt during the Last Interglacial
Rachel Diamond,Rachel Diamond,Louise C. Sime,David Schroeder,Maria-Vittoria Guarino,Maria-Vittoria Guarino +5 more
TL;DR: The Hadley Centre Global Environment Model version 3 (HadGEM3) is the first coupled climate model to simulate an ice-free Arctic during the Last Interglacial (LIG), 127 000 years ago as mentioned in this paper.
Journal ArticleDOI
Impact of paleoclimate on present and future evolution of the Greenland Ice Sheet
Hu Lin Yang,Uta Krebs-Kanzow,Thomas Kleiner,Dmitry Sidorenko,Christian Rodehacke,Xiaoxu Shi,Paul Gierz,Lu Niu,Evan J. Gowan,Sebastian Hinck,Xingxing Liu,Lennert B. Stap,G. Lohmann +12 more
TL;DR: It is proposed that the GrIS was not in equilibrium throughout the entire Holocene and that the slow response to Holocene climate needs to be represented in ice sheet simulations in order to predict ice mass loss, and therefore sea level rise, accurately.
Journal ArticleDOI
Effect of Climatic Precession on Dansgaard‐Oeschger‐Like Oscillations
Yuta Kuniyoshi,Sótér Andrea +1 more
TL;DR: In this paper , the authors simulate self-sustained oscillations of millennial-scale periodicity in the climate and Atlantic meridional overturning circulation under glacial conditions.
Journal ArticleDOI
Range expansion of tropical shallow-water marine molluscs in the NE Atlantic during the last interglacial (MIS 5e): Causes, consequences and utility of ecostratigraphic indicators for the Macaronesian archipelagos
Carlos S. Melo,E Martı́n-González,Carlos Marques da Silva,Inés Galindo,Alberto González-Rodríguez,Lara Baptista,Ana C. Rebelo,Patrícia Madeira,Antje H L Voelker,Mark Johnson,Samuel A. Arruda,Sérgio P. Ávila +11 more
TL;DR: In this article , a thorough revision and update of marine molluscs' checklist from the Macaronesian archipelagos for the Last Interglacial (LIG) is presented.
Posted ContentDOI
Variability and extremes: Statistical validation of the AWI-ESM
TL;DR: A method for model validation in terms of extreme values based on classical extreme value theory is presented and a clustering algorithm to detect spacial dependencies and tendencies for concurrent extremes is discussed.
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