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  • 1
    Keywords: Environment. ; Paleontology . ; Physical geography. ; Geology. ; Environmental Sciences. ; Paleontology. ; Earth System Sciences. ; Geology.
    Description / Table of Contents: 1. The climate system: its functioning and history -- 2. The changing face of the Earth throughout the ages -- 3. Introduction to geochronology -- 4. Carbon-14.
    Abstract: This two-volume book provides a comprehensive, detailed understanding of paleoclimatology beginning by describing the “proxy data” from which quantitative climate parameters are reconstructed and finally by developing a comprehensive Earth system model able to simulate past climates of the Earth. It compiles contributions from specialists in each field who each have an in-depth knowledge of their particular area of expertise. The first volume is devoted to “Finding, dating and interpreting the evidence”. It describes the different geo-chronological technical methods used in paleoclimatology. Different fields of geosciences such as: stratigraphy, magnetism, dendrochronology, sedimentology, are drawn from and proxy reconstructions from ice sheets, terrestrial (speleothems, lakes, and vegetation) and oceanic data, are used to reconstruct the ancient climates of the Earth. The second volume, entitled “Investigation into ancient climates,” focuses on building comprehensive models of past climate evolution. The chapters are based on understanding the processes driving the evolution of each component of the Earth system (atmosphere, ocean, ice). This volume provides both an analytical understanding of each component using a hierarchy of models (from conceptual to very sophisticated 3D general circulation models) and a synthetic approach incorporating all of these components to explore the evolution of the Earth as a global system. As a whole this book provides the reader with a complete view of data reconstruction and modeling of the climate of the Earth from deep time to present day with even an excursion to include impacts on future climate.
    Type of Medium: Online Resource
    Pages: XXIV, 478 p. 262 illus., 121 illus. in color. , online resource.
    Edition: 1st ed. 2021.
    ISBN: 9783030249823
    Series Statement: Frontiers in Earth Sciences,
    DDC: 333.7
    Language: English
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  • 2
    Call number: 9783030249823 (e-book)
    Description / Table of Contents: This two-volume book provides a comprehensive, detailed understanding of paleoclimatology beginning by describing the “proxy data” from which quantitative climate parameters are reconstructed and finally by developing a comprehensive Earth system model able to simulate past climates of the Earth. It compiles contributions from specialists in each field who each have an in-depth knowledge of their particular area of expertise. The first volume is devoted to “Finding, dating and interpreting the evidence”. It describes the different geo-chronological technical methods used in paleoclimatology. Different fields of geosciences such as: stratigraphy, magnetism, dendrochronology, sedimentology, are drawn from and proxy reconstructions from ice sheets, terrestrial (speleothems, lakes, and vegetation) and oceanic data, are used to reconstruct the ancient climates of the Earth. The second volume, entitled “Investigation into ancient climates,” focuses on building comprehensive models of past climate evolution. The chapters are based on understanding the processes driving the evolution of each component of the Earth system (atmosphere, ocean, ice). This volume provides both an analytical understanding of each component using a hierarchy of models (from conceptual to very sophisticated 3D general circulation models) and a synthetic approach incorporating all of these components to explore the evolution of the Earth as a global system. As a whole this book provides the reader with a complete view of data reconstruction and modeling of the climate of the Earth from deep time to present day with even an excursion to include impacts on future climate.
    Type of Medium: 12
    Pages: 1 Online-Ressource (xxiv, 478 Seiten) , Illustrationen, Diagramme
    ISBN: 9783030249823 , 978-3-030-24982-3
    ISSN: 1863-4621 , 1863-463X
    Series Statement: Frontiers in earth sciences
    Language: English
    Note: Contents Volume 1 1 The Climate System: Its Functioning and History / Sylvie Joussaume and Jean-Claude Duplessy 2 The Changing Face of the Earth Throughout the Ages / Frédéric Fluteau and Pierre Sepulchre 3 Introduction to Geochronology / Hervé Guillou 4 Carbon-14 / Martine Paterne, Élisabeth Michel, and Christine Hatté et Jean-Claude Dutay 5 The 40 K/ 40 Ar and 40 Ar/ 39 Ar Methods / Hervé Guillou, Sébastien Nomade, and Vincent Scao 6 Dating of Corals and Other Geological Samples via the Radioactive Disequilibrium of Uranium and Thorium Isotopes / Norbert Frank and Freya Hemsing 7 Magnetostratigraphy: From a Million to a Thousand Years / Carlo Laj, James E. T. Channell, and Catherine Kissel 8 Dendrochronology / Frédéric Guibal and Joël Guiot 9 The Dating of Ice-Core Archives / Frédéric Parrenin 10 Reconstructing the Physics and Circulation of the Atmosphere / Valérie Masson-Delmotte and Joël Guiot 11 Air-Ice Interface: Polar Ice / Valérie Masson-Delmotte and Jean Jouzel 12 Air-Vegetation Interface: Pollen / Joël Guiot 13 Ground-Air Interface: The Loess Sequences, Markers of Atmospheric Circulation / Denis-Didier Rousseau and Christine Hatté 14 Air-Ground Interface: Reconstruction of Paleoclimates Using Speleothems / Dominique Genty and Ana Moreno 15 Air-Interface: d18O Records of Past Meteoric Water Using Benthic Ostracods from Deep Lakes / Ulrich von Grafenstein and Inga Labuhn 16 Vegetation-Atmosphere Interface: Tree Rings / Joël Guiot and Valérie Daux 17 Air-Vegetation Interface: An Example of the Use of Historical Data on Grape Harvests / Valérie Daux 18 Air-Ground Interface: Sediment Tracers in Tropical Lakes / David Williamson 19 Air-water Interface: Tropical Lake Diatoms and Isotope Hydrology Modeling / Florence Sylvestre, Françoise Gasse, Françoise Vimeux, and Benjamin Quesada 20 Air-Ice Interface: Tropical Glaciers / Françoise Vimeux 21 Climate and the Evolution of the Ocean: The Paleoceanographic Data / Thibaut Caley, Natalia Vázquez Riveiros, Laurent Labeyrie, Elsa Cortijo, and Jean-Claude Duplessy Volume 2 22 Climate Evolution on the Geological Timescale and the Role of Paleogeographic Changes / Frédéric Fluteau and Pierre Sepulchre 23 Biogeochemical Cycles and Aerosols Over the Last Million Years / Nathaelle Bouttes, Laurent Bopp, Samuel Albani, Gilles Ramstein, Tristan Vadsaria, and Emilie Capron 24 The Cryosphere and Sea Level / Catherine Ritz, Vincent Peyaud, Claire Waelbroeck, and Florence Colleoni 25 Modeling and Paleoclimatology / Masa Kageyama and Didier Paillard 26 The Precambrian Climate / Yves Goddéris, Gilles Ramstein, and Guillaume Le Hir 27 The Phanerozoic Climate / Yves Goddéris, Yannick Donnadieu, and Alexandre Pohl 28 Climate and Astronomical Cycles / Didier Paillard 29 Rapid Climate Variability: Description and Mechanisms / Masa Kageyama, Didier M. Roche, Nathalie Combourieu Nebout, and Jorge Alvarez-Solas 30 An Introduction to the Holocene and Anthropic Disturbance / Pascale Braconnot and Pascal Yiou 31 From the Climates of the Past to the Climates of the Future / Sylvie Charbit, Nathaelle Bouttes, Aurélien Quiquet, Laurent Bopp, Gilles Ramstein, Jean-Louis Dufresne, and Julien Cattiaux
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  • 3
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Geological and palaeomagnetic studies indicate that ice sheets may have reached the Equator at the end of the Proterozoic eon, 800 to 550 million years ago, leading to the suggestion of a fully ice-covered ‘snowball Earth’. Climate model simulations indicate that such a snowball ...
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Eurasian climates of today, 10 million and 3O million years ago are simulated using an atmospheric general circulation model that incorporates realistic continental geography and epicontinental sea distributions. The resulting climates compare well with various palaeoclimate records. The ...
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2017-06-05
    Description: The acceleration of ice sheet melting has been observed over the last few decades. Recent observations and modeling studies have suggested that the ice sheet contribution to future sea level rise could have been underestimated in the latest Intergovernmental Panel on Climate Change report. The ensuing freshwater discharge coming from ice sheets could have significant impacts on global climate, and especially on the vulnerable tropical areas. During the last glacial/deglacial period, megadrought episodes were observed in the Sahel region at the time of massive iceberg surges, leading to large freshwater discharges. In the future, such episodes have the potential to induce a drastic destabilization of the Sahelian agroecosystem. Using a climate modeling approach, we investigate this issue by superimposing on the Representative Concentration Pathways 8.5 (RCP8.5) baseline experiment a Greenland flash melting scenario corresponding to an additional sea level rise ranging from 0.5 m to 3 m. Our model response to freshwater discharge coming from Greenland melting reveals a significant decrease of the West African monsoon rainfall, leading to changes in agricultural practices. Combined with a strong population increase, described by different demography projections, important human migration flows could be potentially induced. We estimate that, without any adaptation measures, tens to hundreds million people could be forced to leave the Sahel by the end of this century. On top of this quantification, the sea level rise impact over coastal areas has to be superimposed, implying that the Sahel population could be strongly at threat in case of rapid Greenland melting.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 6
    Publication Date: 2020-05-19
    Description: Recently, major progress has been made in the simulation of the ocean dynamics of the Mediterranean using atmospheric and oceanic models with high spatial resolution. High resolution is essential to accurately capture the synoptic variability required to initiate intermediate- and deep-water formation, the engine of the Mediterranean thermohaline circulation (MTC). In paleoclimate studies, one major problem with the simulation of regional climate changes is that boundary conditions are not available from observations or data reconstruction to drive high-resolution regional models. One consistent way to advance paleoclimate modelling is to use a comprehensive global-to-regional approach. However, this approach needs long-term integration to reach equilibrium (hundreds of years), implying enormous computational resources. To tackle this issue, a sequential architecture of a global–regional modelling platform has been developed for the first time and is described in detail in this paper. First of all, the platform is validated for the historical period. It is then used to investigate the climate and in particular, the oceanic circulation, during the Early Holocene. This period was characterised by a large reorganisation of the MTC that strongly affected oxygen supply to the intermediate and deep waters, which ultimately led to an anoxic crisis (called sapropel). Beyond the case study shown here, this platform may be applied to a large number of paleoclimate contexts from the Quaternary to the Pliocene, as long as regional tectonics remain mostly unchanged. For example, the climate responses of the Mediterranean basin during the last interglacial period (LIG), the Last Glacial Maximum (LGM) and the Late Pliocene all present interesting scientific challenges which may be addressed using this numerical platform.
    Print ISSN: 1991-959X
    Electronic ISSN: 1991-9603
    Topics: Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 7
    Publication Date: 2021-04-29
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
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  • 8
    Publication Date: 2020-09-04
    Description: Warm periods in Earth’s history offer opportunities to understand the dynamics of the Earth system under conditions that are similar to those expected in the near future. The Middle Pliocene warm period (MPWP), from 3.3 to 3.0 My B.P, is the most recent time when atmospheric CO2levels were as high as today. However, climate model simulations of the Pliocene underestimate high-latitude warming that has been reconstructed from fossil pollen samples and other geological archives. One possible reason for this is that enhanced non-CO2trace gas radiative forcing during the Pliocene, including from methane (CH4), has not been included in modeling. We use a suite of terrestrial biogeochemistry models forced with MPWP climate model simulations from four different climate models to produce a comprehensive reconstruction of the MPWP CH4cycle, including uncertainty. We simulate an atmospheric CH4mixing ratio of 1,000 to 1,200 ppbv, which in combination with estimates of radiative forcing from N2O and O3, contributes a non-CO2radiative forcing of 0.9W⋅m−2(range 0.6 to 1.1), which is 43% (range 36 to 56%) of the CO2radiative forcing used in MPWP climate simulations. This additional forcing would cause a global surface temperature increase of 0.6 to 1.0 °C, with amplified changes at high latitudes, improving agreement with geological evidence of Middle Pliocene climate. We conclude that natural trace gas feedbacks are critical for interpreting climate warmth during the Pliocene and potentially many other warm phases of the Cenezoic. These results also imply that using Pliocene CO2and temperature reconstructions alone may lead to overestimates of the fast or Charney climate sensitivity.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 9
    Publication Date: 2004-03-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 10
    Publication Date: 2002-01-01
    Print ISSN: 0277-3791
    Electronic ISSN: 1873-457X
    Topics: Geography , Geosciences
    Published by Elsevier
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