Climate and Environmental Evolution of the Last 5 Million Years

Buizert, Christo

PP009
Climate and Environmental Evolution of the Last 5 Million Years

Session ID#: 250519

Session Description:

Natural climate and environmental changes of the last 5 million years (the Plio-Pleistocene) provide prime opportunities to understand the dynamics of the Earth system and to answer societally important questions regarding the sensitivity of global temperature to greenhouse gas concentrations, and the sensitivity of sea level/ ice volume to global climate. Some of the key climatic intervals of this period include the warm Pliocene, the Pleistocene onset of northern hemisphere glaciations, and the intensification and lengthening of glacial cycles at the Mid-Pleistocene Transition. This session combines observational and modeling studies that seek to characterize the evolution and dynamics of Earth’s large-scale climate over the last 5 Ma. We encourage submissions that focus on long-term trends, the role of greenhouse gases, changes to glacial cycle dynamics, and the potential to increase understanding of past warm periods.

Co-Sponsor(s):

C - Cryosphere
OS - Ocean Sciences

Index Terms:

4910 Astronomical forcing [PALEOCEANOGRAPHY]
4928 Global climate models [PALEOCEANOGRAPHY]
4930 Greenhouse gases [PALEOCEANOGRAPHY]
4946 Milankovitch theory [PALEOCEANOGRAPHY]

Primary Convener: Christo Buizert, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States

Conveners: Ayako Abe-Ouchi, University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan, Peter U Clark, Oregon State University, Corvallis, OR, United States and James William Buchanan Rae, University of St Andrews, School of Earth & Environmental Sciences, St Andrews, United Kingdom

Student/Early Career Convener: Romilly Harris Stuart, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, United States

Palynological Constraints on the Pliocene–Pleistocene Boundary and Paleoenvironmental Change in the East Sea (1860646)

Sangheon Yi¹, Yongmi Kim², Dong-geun Yoo³, Seok-Hwi Hong³ and Gwang-Soo Lee³, (1)Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon, South Korea, (2)Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea, (3)Korea Institute of Geoscience and Mineral Resources (KIGAM), Marine Geology and Energy Division, Daejeon, South Korea

Increased and Varied Radiation during the Sun’s Encounters with Cold Clouds in the last 10 million years (1882528)

Merav Opher¹, Joe Giacalone², Abraham Loeb³, Evan P Economo⁴, Alan C Cummings⁵, Jennifer L Middleton⁶, Catherine Zucker⁷, Jesse Miller¹, Anna Nica⁸ and Dr. Maria Hatzaki⁹, (1)Boston University, Astronomy, Boston, MA, United States, (2)University of Arizona, Planetary Sciences, Tucson, AZ, United States, (3)Harvard University, Astronomy, Cambridge, MA, United States, (4)Okinawa Institute of Science and Technology, Onna-son, Japan, (5)CALTECH, Pasadena, CA, United States, (6)Harvard University, Earth and Planetary Sciences, Cambridge, United States, (7)Center for Astrophysics; Harvard & Smithsonian, Cambridge, United States, (8)Organization Not Listed, Washington, DC, United States, (9)National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, Greece

Records of Northern Hemisphere Glaciation and Warm Pool Expansion in Early Pleistocene Carbonate Sediments from the Magellan Seamounts (1882975)

Hyein KIM¹, Claire Routledge², Suhyun KIM¹, Yongmoon Lee³ and Kiho Yang⁴, (1)Pusan National University, Department of Oceanography, Busan, Korea, Republic of (South), (2)Christian-Albrechts-University of Kiel, Institute of Geosciences, Kiel, Germany, (3)Pusan National University, Department of Earth and Environmental Sciences, Busan, South Korea, (4)Pusan National University, Department of Oceanography, Busan, South Korea

Distinguishing Orbital-scale Parameters Impact on Temperature Variations through the Last 3.6 Ma (1889560)

Jeanne Millot-Weil, University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, Paul J Valdes, University of Bristol, Bristol, United Kingdom and Alexander Farnsworth, University of Bristol, BRIDGE, School of Geographical Sciences, Bristol, United Kingdom

Major Shift in Orbital-Scale Variability in the Western South Atlantic Thermocline (1891403)

Marcus Vinicius Lermen Kochhann¹, Karl Meier², Marília Campos³, Rodrigo Nascimento⁴, Thiago Santos⁵, Andre Bahr² and Cristiano M Chiessi⁶, (1)University of Sao Paulo, Institute of Geosciences, Sao Paulo, Brazil, (2)Heidelberg University, Institute of Earth Sciences, Heidelberg, Germany, (3)UNICAMP State University of Campinas, Institute of Geosciences, Campinas, Brazil, (4)UFPR Federal University of Parana, Center for Marine Studies, Pontal do Paraná, Brazil, (5)University of Sao Paulo, School of Arts, Sciences and Humanities, Sao Paulo, Brazil, (6)University of São Paulo, School of Arts, Sciences and Humanities, São Paulo, Brazil

Environmental Change in the Zarqa Valley (Jordan) During the Plio-Pleistocene Climate Shift (1895584)

João Carlos Cerqueira, UNESP Sao Paulo State University, Rio Claro, Brazil, Giancarlo Scardia, UNESP Sao Paulo State University, Instituto de Geociências e Ciências Exatas, Rio Claro, Brazil, Charlotte Prud'homme, CRPG Centre de Recherches Pétrographiques et Géochimiques, Vandoeuvre-Les-Nancy, France, Francisco Ladeira, UNICAMP State University of Campinas, Campinas, Brazil, Fabio Parenti, UFPR Federal University of Parana, Paraná, Brazil and Angela Lamb, British Geological Survey Keyworth, Nottinghamshire, United Kingdom

A Multivariate Gaussian Process State-space Model for a Simultaneous Reconstruction of the Global Ice Volume and Regional Sea Surface Temperatures in the Early Pleistocene (1902742)

Taehee Lee¹, Weimin Si¹, Timothy Herbert¹, Steven C Clemens² and Charles Lawrence³, (1)Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States, (2)Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, United States, (3)Brown University, Division of Applied Mathematics, Providence, United States

Stochastic Resonance Explains Why Ice Ages Appear and Disappear in a Changing Climate (1902907)

Tian Xu, Duke University, Durham, NC, United States, Gabriel George Katul, Duke University, Department of Civil and Environmental Engineering, Durham, United States and Shineng Hu, Duke University, Division of Earth and Climate Sciences, Nicholas School of the Environment, Durham, NC, United States

State Dependence of Millennial-scale Climate Variability from Multiple Datasets (1915506)

Taichi Shimokobe, Massachusetts Institute of Technology, Cambridge, MA, United States and Ayako Abe-Ouchi, University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan

Tracking Antarctic Ice Sheet Variability During the Mid-Pleistocene Transition Using Ice-Rafted Debris (IRD) (1919391)

Nina Athanasopoulos, University of Illinois at Urbana-Champaign, Urbana-Champaign, United States, Kayla Goode, West Chester University of Pennsylvania, West Chester, United States, Louisa Bradtmiller, Macalester College, St. Paul, MN, United States and Katharina Billups, University of Delaware, School of Marine Science and Policy, Lewes, United States

Using CESM2 Wind Simulations and Paleowind Direction Proxy Data to Examine the Consistency of Large-Scale Atmospheric Circulation in Different Climate States (1922884)

Allison Wallin¹, Jessica L Conroy², Samantha Levenhagen¹ and Christina Karamperidou³, (1)University of Illinois Urbana-Champaign, Department of Earth Science & Environmental Change, Urbana, United States, (2)University of Illinois at Urbana Champaign, Department of Earth Science & Environmental Change, Urbana, United States, (3)University of Hawai’i at Mānoa, Department of Atmospheric Sciences, Honolulu, United States

Potential of 10Be to trace the heliosphere’s encounters with dense interstellar clouds in the last 10 Myr (1924729)

Anna Nica¹, Merav Opher¹, Jesse Miller¹, Jennifer L Middleton², Catherine Zucker³ and Caleb Levy⁴, (1)Boston University, Astronomy, Boston, MA, United States, (2)Lamont-Doherty Earth Observatory, Columbia University, Palisades, United States, (3)Center for Astrophysics; Harvard & Smithsonian, Cambridge, United States, (4)Harvard University, Center for Astrophysics, Cambridge, United States

Terrestrial Atmospheric and Climatological Responses to Recent (within 10 Mya) Encounters with Dense Interstellar Clouds (1926396)

Jesse Miller¹, Merav Opher¹, Dr. Maria Hatzaki², Nicholas M Pedatella³, Stergios Misios⁴ and Anna Nica⁵, (1)Boston University, Astronomy, Boston, MA, United States, (2)National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, Greece, (3)NSF National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, (4)Academy of Athens, Research Centre for Atmospheric Physics and Climatology, Athens, Greece, (5)Organization Not Listed, Washington, DC, United States

Triple isotopes of atmospheric oxygen as a proxy for carbon dioxide in altered Early Pleistocene ice core samples (1928018)

Asmita Banerjee¹, Edward J Brook², Christo Buizert³, Tao Sun⁴, Jacob Morgan⁵, Jeffrey P Severinghaus⁵, Ross Beaudette⁶, Etienne Legrain⁷, John A Higgins⁸, Sarah Shackleton⁹ and Julia Marks Peterson², (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)Oregon State University, Corvallis, United States, (3)Oregon State University, Corvallis, OR, United States, (4)Rice University, Department of Earth, Environmental and Planetary Sciences, Houston, United States, (5)Scripps Institution of Oceanography, La Jolla, United States, (6)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Université Libre de Bruxelles, Brussel, Belgium, (8)Princeton University, Princeton, United States, (9)Woods Hole Oceanographic Institution, Woods Hole, United States

Pleistocene to late Miocene ice core records of climate and atmospheric composition from Allan Hills, Antarctica (Invited) (1940132)

Edward J Brook, Oregon State University, Corvallis, United States and NSF Center for Oldest Ice Exploration Ice Coring and Analysis Group

Towards a Global Scale Temperature Reconstruction for the Marine Isotope Stage 11 "Super-Interglacial" (1948871)

Emily Kraus¹, Matthew Osman¹, Louise C Sime², Matthias Prange³, Xu Zhang⁴, Franka Neumann⁵, Emilie Capron⁵, Frédéric Parrenin⁵ and Polychronis C Tzedakis⁶, (1)University of Cambridge, Cambridge, United Kingdom, (2)Ice Dynamics and Paleoclimate, British Antarctic Survey, Cambridge, United Kingdom, (3)MARUM - University of Bremen, Bremen, Germany, (4)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (5)CNRS University Grenoble Alpes, IGE Institut des Géosciences de l'Environnement, Grenoble, France, (6)University College London, Environmental Change Research Centre, Department of Geography, London, United Kingdom

Ice Sheets Without Dynamic Topography (1951229)

B Parazin¹, Natalya A Gomez¹, Fred Richards², Mark J. Hoggard³, Sophie Coulson⁴ and Jerry X Mitrovica⁵, (1)McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, (2)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (3)Australian National University, Research School of Earth Sciences, Acton, ACT, Australia, (4)University of New Hampshire, Durham, United States, (5)Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States

CO₂ explains most orbital-period variability and inter-hemispheric phasing during the late Pleistocene (1955165)

Jeremy D Shakun, Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States and Peter J Huybers, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States

Eccentricity controls the magnitude and pacing of the early, middle, and late Pleistocene glacial cycles (1959473)

Sam Kodama, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States and Terrence Blackburn, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States

Paleosols of volcanic island chains record intense weathering during peak interglacial climatic conditions (1966579)

Nathan D Sheldon, University of Michigan Ann Arbor, Earth and Environmental Sciences, Ann Arbor, MI, United States, Francisco Hevia-Cruz, Universidad de Concepción, Departamento de Ciencias de la Tierra, Concepción, Chile and Anthony Hildenbrand, Université Paris-Saclay, Geosciences Paris-Saclay (GEOPS), Orsey, France

Southern Ocean Sea Surface Temperature Gradients, the Southern Hemisphere Westerly Winds, and the Carbon Cycle (1967663)

Laurel Bayless, University of Colorado-Boulder, Geological Sciences, Boulder, United States, Bradley Markle, University of Colorado Boulder, Institute of Arctic and Alpine Research, Department of Geological Sciences, Boulder, United States, Thomas M Marchitto Jr, Univ Colorado, Boulder, United States, Ulysses Ninnemann, University of Bergen, Department of Earth Science, Bergen, Norway and bradley markle

A Basin-by-Basin Approach to Understanding Antarctic Ice Sheet Hysteresis Through the Plio-Pleistocene (1970578)

Annalise Gregory¹, Christo Buizert², Abigail Hudak³, Julius Garbe⁴ and Ricarda Winkelmann⁴, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (2)Oregon State University, Corvallis, OR, United States, (3)Oregon State University, Corvallis, United States, (4)Potsdam Institute for Climate Impact Research, Potsdam, Germany

Vegetation Evolution in the Loess Plateau since 880 kyr: Responses to Hydrothermal Conditions Based on Evidence from Carbon Isotopes and n-Alkanes (1982556)

Bin Zhou, Organization Not Listed, Washington, DC, United States, Xuehang Zhou, Nanjing University, Nanjing, China, Yuehan Lu, The University of Alabama, Geological Sciences, Tuscaloosa, AL, United States and Mike Meadows, School of Geography and Ocean Sciences, Nanjing University, Nanjing, China, Nanjing, China

Isotopic Imprints of Eccentricity-Forced Coccolithophore Blooms Over the Past Million Years (1992613)

Josué Dauvier¹, Luc Beaufort², Corinne Sonzogni³, Jean-Charles Mazur³, Clara T Bolton⁴, Kazuyo Tachikawa⁵, Yohan Lichterfeld⁵, NIcolas Thouveny⁶, William Rapuc⁷ and Laurence Vidal⁶, (1)Aix Marseille University, Marseille Cedex 03, France, (2)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-Provence, France, (3)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-Provence Cedex, France, (4)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix en Provence, France, (5)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-En-Provence, France, (6)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-provence, France, (7)EDYTEM, Université Savoie Mont Blanc, CNRS, Le Bourget du Lac, France

See more of: Paleoceanography and Paleoclimatology

<< Previous Session Proposal | Next Session Proposal >>

PP009 Climate and Environmental Evolution of the Last 5 Million Years

Session Description:

Co-Sponsor(s):

Index Terms:

PP009
Climate and Environmental Evolution of the Last 5 Million Years