PP41B:
Biogeochemical Cycles in the Past: Long-Term Commitments in the Future I Posters


Session ID#: 8323

Session Description:
Biogeochemical cycles have been dramatically altered during the Anthropocene as for example prominently evidenced by changes in greenhouse gas concentrations. Many biogeochemical cycles have turnover times much longer than the instrumental record and their natural variability, trends, and time scales of response can only be quantified using paleo-observations and paleo-simulations. These observations and coupled biogeochemistry-climate models are key to predict how long-term biogeochemical changes and feedbacks may evolve in the future.

In this session latest results from marine, terrestrial and cryospheric archives will be presented to quantify past changes in biogeochemical cycles on annual, decadal, millennial, up to orbital time scales and contrasted to state-of-the-art biogeochemical modeling. Special focus will be placed on the implications of these paleo-results for defining natural boundaries of the respective biogeochemical cycles, the potential that we have passed these boundaries in recent decades and the risk of irreversible or abrupt changes in the future.
Primary Conveners:  Hubertus Fischer, University of Bern, Bern, Switzerland
Conveners:  Baerbel Hoenisch, Columbia University of New York, Palisades, NY, United States, Laurie Menviel, University of New South Wales, Climate Change Research Centre, Sydney, Australia and Edward Brook, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
Chairs:  Baerbel Hoenisch, Columbia University of New York, Palisades, NY, United States and Edward Brook, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States
OSPA Liaisons:  Hubertus Fischer, University of Bern, Bern, Switzerland

Cross-Listed:
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • GC - Global Environmental Change
Co-Sponsor(s):
  • IGBP: International Geosphere-Biosphere Programme -
Index Terms:

Abstracts Submitted to this Session:

Jinho Ahn, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, Edward Brook, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Shaun A Marcott, University of Wisconsin Madison, Madison, WI, United States
Nadine Rippert1, Lars Max1, Ralf Tiedemann2, Isabel Cacho Lascorz3 and Andreas Mackensen1, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (AWI), Marine Geology, 27568 Bremerhaven, Germany, (3)Universitat de Barcelona, Geociéncies Marines, Dept. d’Estratigrafia, Paleontologia y Geociéncies Marines, Barcelona, Spain
Lars Max1, Nadine Rippert2, Lester Lembke-Jene3, Ralf Tiedemann4, Isabel Cacho Lascorz5, Andreas Mackensen3 and Dirk Nuernberg6, (1)Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Marine Geology and Paleontology, Bremerhaven, Germany, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (4)Alfred-Wegener-Institute, Bremerhaven, Germany, (5)Geociéncies Marines, Dept. d’Estratigrafia, Paleontologia y Geociéncies Marines, Universitat de Barcelona, Barcelona, Spain, (6)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Natalie Elizabeth Umling, University of South Carolina Columbia, Columbia, SC, United States and Robert Thunell, University of South Carolina, SEOE, Columbia, SC, United States
Carlye D Peterson, University of California Santa Barbara, Santa Barbara, CA, United States and Lorraine E Lisiecki, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States
Hun-Gyu Lee, Seoul National University, Seoul, South Korea, Jinho Ahn, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, Jinhwa Shin, Univ. Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France and Edward Brook, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
Laurie Menviel, University of New South Wales, Climate Change Research Centre, Sydney, Australia, Anne Mouchet, Université de Liège, Astrophysics, Geophysics and Oceanography Department, Liège, Belgium, Katrin J Meissner, University of New South Wales, Sydney, NSW, Australia, Fortunat Joos, University of Bern, Bern, Switzerland and Matthew H England, University of New South Wales, Climate Change Research Centre, Sydney, NSW, Australia
Mathias Heinze and Tatiana Ilyina, Max Planck Institute for Meteorology, Hamburg, Germany
Heather L Ford1, Laura Haynes2, Baerbel Hoenisch2 and Maureen E Raymo3, (1)University of Cambridge, Earth Sciences, Cambridge, United Kingdom, (2)Columbia University of New York, Palisades, NY, United States, (3)Lamont-Doherty Earth Obs., New York, NY, United States
Michael J Henehan1, Pincelli M Hull2, Donald E Penman2, Noah Planavsky3, Daniela N Schmidt4, James William Buchanan Rae5, Ellen Thomas6 and Brian T Huber7, (1)GFZ German Research Centre for Geosciences, Geochemistry of the Earth's surface, Potsdam, Germany, (2)Yale University, Department of Geology and Geophysics, New Haven, CT, United States, (3)Yale University, New Haven, United States, (4)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (5)University of St Andrews, School of Earth and Environmental Sciences, St Andrews, KY16, United Kingdom, (6)Yale University, New Haven, CT, United States, (7)National Museum of Natural History, Department of Paleobiology, Washington, DC, United States
Annie Tamalavage1, Peter J. van Hengstum1,2, Patrick Louchouarn1,3, Patricia L. Fall4 and Jeffrey P Donnelly5, (1)Texas A & M University, Oceanography, College Station, TX, United States, (2)Texas A&M-Galveston Bldg 3029, Marine Sciences, Galveston, TX, United States, (3)Texas A&M-Galveston, Marine Sciences, Galveston, TX, United States, (4)University of North Carolina Charlotte, Department of Geography and Earth Sciences, Charlotte, NC, United States, (5)WHOI, Woods Hole, MA, United States
Sara K Enders1, Benjamin Z Houlton1, Naohiko Ohkouchi2, Dirk Wagner3, Nanako O Ogawa2, Yoshito Chikaraishi4 and Hisami Suga2, (1)University of California Davis, Davis, CA, United States, (2)JAMSTEC, Yokosuka, Japan, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (4)Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan
Xingchen Tony Wang1, Daniel Mikhail Sigman1, Anne L Cohen2 and William G Thompson3, (1)Princeton University, Princeton, NJ, United States, (2)Woods Hole Oceanographic Institution, Geology and Geophysics, Woods Hole, MA, United States, (3)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Christy Liang, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Jeffrey P Severinghaus, Scripps Institution of Oceanography, La Jolla, CA, United States
Mengtian Huang1, Shilong Piao1,2, Yan Sun1, Philippe Ciais3, Lei Cheng4, Jiafu Mao5, Ben Poulter6, Xiaoying Shi7, Zhenzhong Zeng1 and Yingping Wang8, (1)Peking University, College of Urban and Environmental Sciences, Beijing, China, (2)Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (3)CNRS, Paris Cedex 16, France, (4)Auburn University, Physics Department, Auburn, AL, United States, (5)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (6)University of Montana, Missoula, MT, United States, (7)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, United States, (8)CSIRO, Ocean and Atmosphere Flagship, Aspendale, Australia