气候变化领域集成服务门户(CCPortal): 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)

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DOI	10.5194/cp-17-63-2021
	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)
	Otto-Bliesner B.L.; Brady E.C.; Zhao A.; Brierley C.M.; Axford Y.; Capron E.; Govin A.; Hoffman J.S.; Isaacs E.; Kageyama M.; Scussolini P.; Tzedakis P.C.; Williams C.J.R.; Wolff E.; Abe-Ouchi A.; Braconnot P.; Ramos Buarque S.; Cao J.; De Vernal A.; Vittoria Guarino M.; Guo C.; Legrande A.N.; Lohmann G.; Meissner K.J.; Menviel L.; Morozova P.A.; Nisancioglu K.H.; O'Ishi R.; Mélia D.S.Y.; Shi X.; Sicard M.; Sime L.; Stepanek C.; Tomas R.; Volodin E.; Yeung N.K.H.; Zhang Q.; Zhang Z.; Zheng W.
发表日期	2021
ISSN	1814-9324
起始页码	79
结束页码	99
卷号	17 期号:1
英文摘要	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 mid- Holocene 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. © 2021 AVS Science and Technology Society. All rights reserved.
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183620
作者单位	Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, 80305, United States; Environmental Change Research Centre, Department of Geography, University College London, London, WC1E 6BT, United Kingdom; Department of Earth and Planetary Sciences, Northwestern University, Evanston, IL, United States; Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen, Copenhagen, 2200, Denmark; LSCE-IPSL, Laboratoire des Sciences du Climat et de l'Environnement (CEA-CNRS-UVSQ), University Paris-Saclay, Gif sur Yvette, 91190, France; Science Museum of Virginia, Richmond, VA 23220, United States; Center for Environmental Studies, Virginia Commonwealth University, Richmond, VA 23220, United States; Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, Netherlands; School of Geographical Sciences, University of Bristol, Bristol, United Kingdom; Department of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, United Kingdom; Atm...
推荐引用方式 GB/T 7714	Otto-Bliesner B.L.,Brady E.C.,Zhao A.,et al. 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)[J],2021,17(1).
APA	Otto-Bliesner B.L..,Brady E.C..,Zhao A..,Brierley C.M..,Axford Y..,...&Zheng W..(2021).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).Climate of the Past,17(1).
MLA	Otto-Bliesner B.L.,et al."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)".Climate of the Past 17.1(2021).