Journal ArticleDOI
Simulation of the Last 21 000 Years Using Accelerated Transient Boundary Conditions
TLDR
In this paper, the effect of using accelerated boundary conditions and of uncertainties in the initial state was investigated for long-term transient paleoclimate modeling, showing that the acceleration can have a significant impact on the local climate history.Abstract:
The earth system model of intermediate complexity ECBilt-CLIO has been used for transient simulations of the last deglaciation and the Holocene. The forcing effects of the ice sheets, greenhouse gas concentrations, and orbital configurations are prescribed as time-varying boundary conditions. In this study two key aspects of the transient simulations are investigated, which are of broader relevance for long-term transient paleoclimate modeling: the effect of using accelerated boundary conditions and of uncertainties in the initial state. Simulations with nonaccelerated boundary conditions and an acceleration factor 10 were integrated. These simulations show that the acceleration can have a significant impact on the local climate history. In the outcropping regions of the high southern latitudes and the convective regions in the North Atlantic, the acceleration leads to damped and delayed temperature response to the boundary conditions. Furthermore, uncertainties in the initial state can strongly ...read more
Citations
More filters
Journal ArticleDOI
A Reconstruction of Regional and Global Temperature for the Past 11,300 Years
TL;DR: Recon reconstructions of the past 1500 years suggest that recent warming is unprecedented in that time, and regional and global temperature anomalies for the past 11,300 years from 73 globally distributed records are provided.
Journal ArticleDOI
Transient Simulation of Last Deglaciation with a New Mechanism for Bølling-Allerød Warming
Zhengyu Liu,Bette L. Otto-Bliesner,Feng He,Esther C. Brady,Robert A. Tomas,Peter U. Clark,Anders E. Carlson,Jean Lynch-Stieglitz,William B Curry,Edward J. Brook,David J. Erickson,Robert Jacob,John E. Kutzbach,Jun Cheng,Jun Cheng +14 more
TL;DR: The first synchronously coupled atmosphere-ocean general circulation model simulation from the Last Glacial Maximum to the Bølling-Allerød (BA) warming reproduces several major features of the deglacial climate evolution, suggesting a good agreement in climate sensitivity between the model and observations.
Journal ArticleDOI
Predictability of biomass burning in response to climate changes
Anne-Laure Daniau,Patrick J. Bartlein,Sandy P. Harrison,Sandy P. Harrison,Iain Colin Prentice,Iain Colin Prentice,Iain Colin Prentice,Scott Brewer,Pierre Friedlingstein,Pierre Friedlingstein,T I Harrison-Prentice,Jun Inoue,Kenji Izumi,Jennifer R. Marlon,Scott Mooney,Mitchell J. Power,Janelle Stevenson,Willy Tinner,Maja Andrič,Juliana Atanassova,Hermann Behling,M.P. Black,Olivier Blarquez,K. J. Brown,K. J. Brown,Christopher Carcaillet,Eric A. Colhoun,Daniele Colombaroli,Basil A. S. Davis,Donna D'Costa,John Dodson,Lydie M Dupont,Zewdu Eshetu,Daniel G. Gavin,Aurélie Genries,Simon Haberle,Douglas J. Hallett,Geoffrey Hope,Sally P. Horn,T.G. Kassa,Fumitaka Katamura,Lisa M. Kennedy,Peter Kershaw,Sergey K. Krivonogov,Colin J. Long,Donatella Magri,Elena Marinova,Elena Marinova,G.M. Mckenzie,Patricio I. Moreno,Patrick Moss,Frank H. Neumann,Frank H. Neumann,Elin Norström,C. Paitre,Damien Rius,Damien Rius,Neil Roberts,Guy Robinson,Naoko Sasaki,Louis Scott,Hikaru Takahara,Valery T. Terwilliger,Valery T. Terwilliger,Florian Thevenon,Rebecca Turner,Verushka Valsecchi,Verushka Valsecchi,Boris Vannière,Megan K. Walsh,Megan K. Walsh,Natasha L. Williams,Yunlin Zhang +72 more
TL;DR: This article analyzed sedimentary charcoal records to show that the changes in fire regime over the past 21,000 yrs are predictable from changes in regional climates and showed that fire increases monotonically with changes in temperature and peaks at intermediate moisture levels.
Journal ArticleDOI
The Holocene temperature conundrum
Zhengyu Liu,Zhengyu Liu,Jiang Zhu,Yair Rosenthal,Xu Zhang,Bette L. Otto-Bliesner,Axel Timmermann,Robin S. Smith,Gerrit Lohmann,Weipeng Zheng,Oliver Elison Timm +10 more
TL;DR: It is shown that climate models simulate a robust global annual mean warming in the Holocene, mainly in response to rising CO2 and the retreat of ice sheets, and this model-data inconsistency demands a critical reexamination of both proxy data and models.
Journal ArticleDOI
Late Pleistocene climate drivers of early human migration
Axel Timmermann,Tobias Friedrich +1 more
TL;DR: Results from a numerical human dispersal model document that orbital-scale global climate swings played a key role in shaping Late Pleistocene global population distributions, whereas millennial-scale abrupt climate changes, associated with Dansgaard–Oeschger events, had a more limited regional effect.
References
More filters
Journal ArticleDOI
Climate change 2001: the scientific basis
John Theodore Houghton,Y. Ding,David John Griggs,M. Noguer,P. J. van der Linden,X. Dai,K. Maskell,C. A. Johnson +7 more
TL;DR: In this article, the authors present an overview of the climate system and its dynamics, including observed climate variability and change, the carbon cycle, atmospheric chemistry and greenhouse gases, and their direct and indirect effects.
Journal ArticleDOI
Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation
TL;DR: An evaluation of the atmospheric moisture budget reveals coherent large-scale changes since 1980 that are linked to recent dry conditions over southern Europe and the Mediterranean, whereas northern Europe and parts of Scandinavia have generally experienced wetter than normal conditions.
Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica
J. R. Petit,Jean Jouzel,Dominique Raynaud,J. M. Barnola,I. Basile,Michael L. Bender,Jérôme Chappellaz,Michael Davis,Gilles Delaygue,Marc Delmotte,V. M. Kotlyakov,Michel Legrand,Vladimir Ya. Lipenkov,C. Lorius,L. Pepin,Catherine Ritz,Eric S. Saltzman,Michel Stievenard +17 more
TL;DR: The recent completion of drilling at Vostok station in East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial-interglacial cycles.
Journal ArticleDOI
Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica
J. R. Petit,Jean Jouzel,Dominique Raynaud,Nartsiss I. Barkov,I. Basile,Michael L. Bender,Jérôme Chappellaz,M. Davisk,G. Delaygue,Marc Delmotte,V. M. Kotlyakov,Michel Legrand,Vladimir Ya. Lipenkov,C. Lorius,Catherine Ritz,E. Saltzmank,Michel Stievenard +16 more
TL;DR: The recent completion of drilling at Vostok station in East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial-interglacial cycles as discussed by the authors.
Journal ArticleDOI
A High-Resolution Absolute-Dated Late Pleistocene Monsoon Record from Hulu Cave, China
Yongjin Wang,Yongjin Wang,Hai Cheng,Richard Lawrence Edwards,Zhisheng An,Jiangying Wu,Chuan-Chou Shen,Jeffrey A. Dorale +7 more
TL;DR: The record links North Atlantic climate with the meridional transport of heat and moisture from the warmest part of the ocean where the summer East Asian Monsoon originates and generally agrees with the timing of temperature changes from the Greenland Ice Sheet Project Two (GISP2).
Related Papers (5)
Orbital and Millennial Antarctic Climate Variability over the Past 800,000 Years
Jean Jouzel,Valérie Masson-Delmotte,O. Cattani,Gabrielle Dreyfus,S. Falourd,G. P. Hoffmann,Bénédicte Minster,Julius Nouet,Jean-Marc Barnola,Jérôme Chappellaz,Hubertus Fischer,J. C. Gallet,Sigfus J Johnsen,Sigfus J Johnsen,Markus Leuenberger,L. Loulergue,D. Luethi,Hans Oerter,Frédéric Parrenin,Grant M. Raisbeck,Dominique Raynaud,Adrian Schilt,Jakob Schwander,Enricomaria Selmo,Roland Souchez,Renato Spahni,Bernhard Stauffer,Jørgen Peder Steffensen,Barbara Stenni,Thomas F. Stocker,Jean-Louis Tison,Martin Werner,Eric W. Wolff +32 more
Results of PMIP2 coupled simulations of the Mid-Holocene and Last Glacial Maximum - Part 1: experiments and large-scale features
Pascale Braconnot,Bette L. Otto-Bliesner,Sandy P. Harrison,Sylvie Joussaume,J.-Y. Peterchmitt,Ayako Abe-Ouchi,Michel Crucifix,Michel Crucifix,E. Driesschaert,Thierry Fichefet,Chris Hewitt,Masa Kageyama,A. Kitoh,Alexandre Laîné,Marie-France Loutre,Olivier Marti,Ute Merkel,Gilles Ramstein,Paul J. Valdes,S. L. Weber,Yongqiang Yu,Yan Zhao +21 more