Articles | Volume 7, issue 4
Research article 11 Oct 2011
Research article | 11 Oct 2011
Uncertainties in modelling CH4 emissions from northern wetlands in glacial climates: the role of vegetation parameters
C. Berrittella and J. van Huissteden
Related subject area
Subject: Climate Modelling | Archive: Modelling only | Timescale: PleistoceneLarge-scale features of Last Interglacial climate: results from evaluating the lig127k simulations for the Coupled Model Intercomparison Project (CMIP6)–Paleoclimate Modeling Intercomparison Project (PMIP4)Evaluation of Arctic warming in mid-Pliocene climate simulationsSimulating Marine Isotope Stage 7 with a coupled climate–ice sheet modelComparison of past and future simulations of ENSO in CMIP5/PMIP3 and CMIP6/PMIP4 modelsAn empirical evaluation of bias correction methods for palaeoclimate simulationsHypersensitivity of glacial summer temperatures in SiberiaDistorted Pacific–North American teleconnection at the Last Glacial MaximumUnderstanding the Australian Monsoon change during the Last Glacial Maximum with a multi-model ensembleEffect of high dust amount on surface temperature during the Last Glacial Maximum: a modelling study using MIROC-ESMThe role of regional feedbacks in glacial inception on Baffin Island: the interaction of ice flow and meteorologyQuantifying the influence of the terrestrial biosphere on glacial–interglacial climate dynamicsIntra-interglacial climate variability: model simulations of Marine Isotope Stages 1, 5, 11, 13, and 15A GCM comparison of Pleistocene super-interglacial periods in relation to Lake El'gygytgyn, NE Arctic RussiaGlobal sensitivity analysis of the Indian monsoon during the PleistoceneInteraction of ice sheets and climate during the past 800 000 yearsSimulating last interglacial climate with NorESM: role of insolation and greenhouse gases in the timing of peak warmthImpact of geomagnetic excursions on atmospheric chemistry and dynamicsAssessing the impact of Laurentide Ice Sheet topography on glacial climateInterdependence of the growth of the Northern Hemisphere ice sheets during the last glaciation: the role of atmospheric circulationDifferent ocean states and transient characteristics in Last Glacial Maximum simulations and implications for deglaciationWhy could ice ages be unpredictable?Assessing the impact of late Pleistocene megafaunal extinctions on global vegetation and climateThe last interglacial (Eemian) climate simulated by LOVECLIM and CCSM3LGM permafrost distribution: how well can the latest PMIP multi-model ensembles perform reconstruction?Tropical vegetation response to Heinrich Event 1 as simulated with the UVic ESCM and CCSM3Influence of Last Glacial Maximum boundary conditions on the global water isotope distribution in an atmospheric general circulation modelA new global reconstruction of temperature changes at the Last Glacial MaximumModelling snow accumulation on Greenland in Eemian, glacial inception, and modern climates in a GCMModelling large-scale ice-sheet–climate interactions following glacial inceptionSensitivity of the North Atlantic climate to Greenland Ice Sheet melting during the Last InterglacialThe impact of different glacial boundary conditions on atmospheric dynamics and precipitation in the North Atlantic regionPresent and LGM permafrost from climate simulations: contribution of statistical downscalingThe key role of topography in altering North Atlantic atmospheric circulation during the last glacial periodModeling Mediterranean Ocean climate of the Last Glacial MaximumA comparison of climate simulations for the last glacial maximum with three different versions of the ECHAM model and implications for summer-green tree refugiaChanges in atmospheric variability in a glacial climate and the impacts on proxy data: a model intercomparison
Bette L. Otto-Bliesner, Esther C. Brady, Anni Zhao, Chris M. Brierley, Yarrow Axford, Emilie Capron, Aline Govin, Jeremy S. Hoffman, Elizabeth Isaacs, Masa Kageyama, Paolo Scussolini, Polychronis C. Tzedakis, Charles J. R. Williams, Eric 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 A. Morozova, Kerim H. Nisancioglu, Ryouta O'ishi, David Salas y Mélia, Xiaoxu Shi, Marie Sicard, Louise Sime, Christian Stepanek, Robert Tomas, Evgeny Volodin, Nicholas K. H. Yeung, Qiong Zhang, Zhongshi Zhang, and Weipeng Zheng
Clim. Past, 17, 63–94,Short summary
The CMIP6–PMIP4 Tier 1 lig127k experiment was designed to address the climate responses to strong orbital forcing. We present a multi-model ensemble of 17 climate models, most of which have also completed the CMIP6 DECK experiments and are thus important for assessing future projections. The lig127ksimulations show strong summer warming over the NH continents. More than half of the models simulate a retreat of the Arctic minimum summer ice edge similar to the average for 2000–2018.
Wesley de Nooijer, Qiong Zhang, Qiang Li, Qiang Zhang, Xiangyu Li, Zhongshi Zhang, Chuncheng Guo, Kerim H. Nisancioglu, Alan M. Haywood, Julia C. Tindall, Stephen J. Hunter, Harry J. Dowsett, Christian Stepanek, Gerrit Lohmann, Bette L. Otto-Bliesner, Ran Feng, Linda E. Sohl, Mark A. Chandler, Ning Tan, Camille Contoux, Gilles Ramstein, Michiel L. J. Baatsen, Anna S. von der Heydt, Deepak Chandan, W. Richard Peltier, Ayako Abe-Ouchi, Wing-Le Chan, Youichi Kamae, and Chris M. Brierley
Clim. Past, 16, 2325–2341,Short summary
The simulations for the past climate can inform us about the performance of climate models in different climate scenarios. Here, we analyse Arctic warming in an ensemble of 16 simulations of the mid-Pliocene Warm Period (mPWP), when the CO2 level was comparable to today. The results highlight the importance of slow feedbacks in the model simulations and imply that we must be careful when using simulations of the mPWP as an analogue for future climate change.
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Clim. Past, 16, 2183–2201,Short summary
Our study is the first study to conduct transient simulations over MIS 7, using a 3-D coupled climate–ice sheet model with interactive ice sheets in both hemispheres. We find glacial inceptions to be more sensitive to orbital variations, whereas glacial terminations need the concerted action of both orbital and CO2 forcings. We highlight the issue of multiple equilibria and an instability due to stationary-wave–topography feedback that can trigger unrealistic North American ice sheet growth.
Josephine R. Brown, Chris M. Brierley, Soon-Il An, Maria-Vittoria Guarino, Samantha Stevenson, Charles J. R. Williams, Qiong Zhang, Anni Zhao, Ayako Abe-Ouchi, Pascale Braconnot, Esther C. Brady, Deepak Chandan, Roberta D'Agostino, Chuncheng Guo, Allegra N. LeGrande, Gerrit Lohmann, Polina A. Morozova, Rumi Ohgaito, Ryouta O'ishi, Bette L. Otto-Bliesner, W. Richard Peltier, Xiaoxu Shi, Louise Sime, Evgeny M. Volodin, Zhongshi Zhang, and Weipeng Zheng
Clim. Past, 16, 1777–1805,Short summary
El Niño–Southern Oscillation (ENSO) is the largest source of year-to-year variability in the current climate, but the response of ENSO to past or future changes in climate is uncertain. This study compares the strength and spatial pattern of ENSO in a set of climate model simulations in order to explore how ENSO changes in different climates, including past cold glacial climates and past climates with different seasonal cycles, as well as gradual and abrupt future warming cases.
Robert Beyer, Mario Krapp, and Andrea Manica
Clim. Past, 16, 1493–1508,Short summary
Even the most sophisticated global climate models are known to have significant biases in the way they simulate the climate system. Correcting model biases is therefore essential for creating realistic reconstructions of past climate that can be used, for example, to study long-term ecological dynamics. Here, we evaluated three widely used bias correction methods by means of a global dataset of empirical temperature and precipitation records from the last 125 000 years.
Pepijn Bakker, Irina Rogozhina, Ute Merkel, and Matthias Prange
Clim. Past, 16, 371–386,Short summary
Northeastern Siberia is currently known for its harsh cold climate, but remarkably it did not experience large-scale glaciation during the last ice age. We show that the region is also exceptional in climate models. As a result of subtle changes in model setup, climate models show a strong divergence in simulated glacial summer temperatures that is ultimately driven by changes in the circumpolar atmospheric stationary wave pattern and associated northward heat transport to northeastern Siberia.
Yongyun Hu, Yan Xia, Zhengyu Liu, Yuchen Wang, Zhengyao Lu, and Tao Wang
Clim. Past, 16, 199–209,Short summary
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Clim. Past, 11, 45–61,Short summary
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