Journal ArticleDOI
Comparing proxies for the reconstruction of LGM sea-surface conditions in the northern North Atlantic
A. de Vernal,Antoni Rosell-Melé,Michal Kucera,Claude Hillaire-Marcel,Frédérique Eynaud,M. Weinelt,Trond Dokken,Masa Kageyama +7 more
TLDR
In this article, sea-surface conditions of the Last Glacial Maximum (LGM, 23-19-ka) were reconstructed using different proxies, which were calibrated to a standardized modern hydrography.About:
This article is published in Quaternary Science Reviews.The article was published on 2006-11-01. It has received 127 citations till now. The article focuses on the topics: North Atlantic Deep Water & Last Glacial Maximum.read more
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Journal ArticleDOI
Last Glacial Maximum and Holocene Climate in CCSM3
Bette L. Otto-Bliesner,Esther C. Brady,Gabriel Clauzet,Robert A. Tomas,Samuel Levis,Zav Kothavala +5 more
TL;DR: In this paper, the climate sensitivity of the Community Climate System Model version 3 (CCSM3) is studied for two past climate forcings, the Last Glacial Maximum (LGM) and the mid-Holocene.
Journal ArticleDOI
Constraints on the magnitude and patterns of ocean cooling at the Last Glacial Maximum
Claire Waelbroeck,André Paul,Michal Kucera,Antoni Rosell-Melé,Mara Weinelt,Ralph R Schneider,Alan C. Mix,Andrea Abelmann,Leanne K. Armand,Edouard Bard,Stephen Barker,Timothy T. Barrows,Heather M. Benway,Isabel Cacho,Min-Te Chen,Elsa Cortijo,Xavier Crosta,A. de Vernal,Trond Dokken,Josette Duprat,Henry Elderfield,Frédérique Eynaud,Rainer Gersonde,A. Hayes,Maryse Henry,Claude Hillaire-Marcel,C.-C. Huang,Eystein Jansen,Steve Juggins,Nejib Kallel,Thorsten Kiefer,Markus Kienast,L. Labeyrie,Héloïse Leclaire,Laurent Londeix,Sylvie Mangin,Jens Matthiessen,Fabienne Marret,Marius Y. Meland,Ann E Morey,Stefan Mulitza,Uwe Pflaumann,Nicklas G Pisias,T. Radi,André Rochon,Eelco J. Rohling,Laura Sbaffi,C. Schäfer-Neth,Sandrine Solignac,Howard J. Spero,Kazuyo Tachikawa,Jean-Louis Turon +51 more
TL;DR: This article presented an updated synthesis of sea surface temperatures during the Last Glacial Maximum, rigorously defined as the period between 23 and 19 thousand years before present, from the Multiproxy Approach for the Reconstruction of the Glacial Ocean Surface (MARGO) project.
Journal ArticleDOI
Interglacials of the last 800,000 years
André Berger,Michel Crucifix,David A. Hodell,C. Mangili,Jerry F. McManus,Bette L. Otto-Bliesner,K. Pol,Dominique Raynaud,Luke C Skinner,Polychronis C Tzedakis,Eric W. Wolff,Qiuzhen Yin,Ayako Abe-Ouchi,Carlo Barbante,Victor Brovkin,Isabel Cacho,Emilie Capron,Patrizia Ferretti,A. Ganopolski,Joan O. Grimalt,Bärbel Hönisch,Kenji Kawamura,Amaelle Landais,Vasiliki Margari,Belen Martrat,Valérie Masson-Delmotte,Zohra Mokeddem,Zohra Mokeddem,Frédéric Parrenin,A.A. Prokopenko,Harunur Rashid,Michael Schulz,N. Vazquez Riveiros +32 more
TL;DR: In this article, the authors identify eleven interglacials in the last 800,000 years, a result that is robust to alternative definitions, such as the onset of an interglacial (glacial termination) seems to require a reducing precession parameter (increasing Northern Hemisphere summer insolation), but this condition alone is insufficient.
Journal ArticleDOI
Links between iron supply, marine productivity, sea surface temperature, and CO2 over the last 1.1 Ma
Alfredo Martínez-García,Antoni Rosell-Melé,Antoni Rosell-Melé,Walter Geibert,Walter Geibert,Walter Geibert,Rainer Gersonde,Pere Masqué,Vania Gaspari,Carlo Barbante +9 more
TL;DR: In this article, the authors present a new multiproxy data set of sea surface temperatures (SST), dust and iron supply, and marine export productivity from the marine sediment core PS2489-2/ODP Site 1090 located in the subantarctic Atlantic, that allow them to evaluate various hypotheses on the role of the Southern Ocean (SO) in modulating atmospheric CO2 concentrations back to 11 Ma.
Journal ArticleDOI
Position of the Polar Front along the western Iberian margin during key cold episodes of the last 45 ka
Frédérique Eynaud,Lucia de Abreu,Antje H L Voelker,Joachim Schönfeld,Emilia Salgueiro,Jean-Louis Turon,Aurélie Penaud,Samuel Toucanne,Filipa Naughton,Maria Fernanda Sanchez Goñi,Bruno Malaizé,Isabel Cacho +11 more
TL;DR: In this paper, a compilation of robust and coherent paleohydrological proxies obtained from eleven cores distributed between 36 and 42°N was used to track the migration of the Polar Front (PF) over the Iberian margin during some of the cold climatic extremes of the last 45 ka.
References
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Journal ArticleDOI
GLOBAL GLACIAL ISOSTASY AND THE SURFACE OF THE ICE-AGE EARTH: The ICE-5G (VM2) Model and GRACE
TL;DR: The impact of the changing surface ice load upon both Earth's shape and gravitational field, as well as upon sea-level history, have come to be measurable using a variety of geological and geophysical techniques.
Book ChapterDOI
The Scientific Basis
TL;DR: In this paper, the topology of the tetrahedral linkage and the efficiency of space filling are compared for the various polymorphs of SiO2, and the displacive transformations from a more open high-temperature form (e.g., "high" or "h") to a denser form stable at lower temperatures (α quartz or cristobalite) are discussed.
Journal ArticleDOI
Collapse and rapid resumption of Atlantic meridional circulation linked to deglacial climate changes
TL;DR: It is found that the meridional overturning was nearly, or completely, eliminated during the coldest deglacial interval in the North Atlantic region, beginning with the catastrophic iceberg discharge Heinrich event H1, 17,500’yr ago, and declined sharply but briefly into the Younger Dryas cold event, about 12,700 yr ago.
Journal ArticleDOI
Evidence for massive discharges of icebergs into the North Atlantic ocean during the last glacial period
Gerard C. Bond,Hartmut Heinrich,Wallace S. Broecker,Laurent Labeyrie,Jerry F. McManus,John T. Andrews,Sylvain Huon,Ruediger Jantschik,Silke Clasen,Christine Simet,Kathy Tedesco,Mieczyslawa Klas,Georges Bonani,Susan Ivy +13 more
TL;DR: In this article, the authors present evidence that the most recent six Heinrich layers, deposited between 14,000 and 70,000 years ago, record marked decreases in sea surface temperature and salinity, decreases in the flux of planktonic foraminifera to the sediments, and short-lived, massive discharges of icebergs originating in eastern Canada.