PP21E:
Twenty-Five Years of Heinrich Events Research: What We Have Learned So Far About the Past Global Changes I

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Session ID#: 33946

Session Description:
In 1988, Heinrich discovered six iceberg-rafting events from the Dreizack seamount. However, late Bond and Broecker of LDEO placed the findings of Heinrich into a past global change context in 1992 that caught the imaginations of paleo-communities. Since then, search for the impacts of H-events on the ocean and atmospheric circulation across the globe has been intensified. The objective of the session on H-events is to bring together a diverse group of researchers who deal with paleo-proxy records such as ice cores, marine sediments, terrestrial archives and coupled ocean-atmosphere models to discuss advances in understanding the mechanisms of these events. Abstracts are solicited for any topic relevant to the above or other questions relating to H-events: (a) ice cores records from both poles and high altitudes; (b) marine sediment records; (c) terrestrial proxy records of abrupt climate change; and (d) coupled climate models and their performance in simulating H-events.
Primary Convener:  Harunur Rashid, Memorial University of Newfoundland, St John's, NL, Canada
Conveners:  Stephen Obrochta, Akita University, Graduate School of International Resource Science, Akita, Japan, Hartmut Heinrich, BSH Federal Maritime and Hydrographic Agency, Hamburg, Germany and Jerry F McManus, Columbia University, Earth and Environmental Sciences, New York, United States
Chairs:  Hartmut Heinrich, BSH, Hamburg, Germany and Harunur Rashid, Memorial University of Newfoundland, St John's, NL, Canada
OSPA Liaison:  Stephen Obrochta, Akita University, Graduate School of International Resource Science, Akita, Japan

Cross-Listed:
  • A - Atmospheric Sciences
  • C - Cryosphere
  • GC - Global Environmental Change
  • OS - Ocean Sciences
Index Terms:

1605 Abrupt/rapid climate change [GLOBAL CHANGE]
1616 Climate variability [GLOBAL CHANGE]
4926 Glacial [PALEOCEANOGRAPHY]
4928 Global climate models [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

Heinrich Events: An Unintentional Discovery And Possible Consequences For The Future (210607)
Hartmut Heinrich, BSH Federal Maritime and Hydrographic Agency, Hamburg, Germany
Assessing the biogeochemical impact of AMOC collapse during Heinrich Stadial 1: New surface and mid-depth records from the South Atlantic (276556)
David C Lund, University of CT at Avery Point, Groton, United States, Matthew Lacerra, University of CT at Avery Point, Groton, CT, United States, Andreas Schmittner, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States and Jimin Yu, Australian National University, Research School of Earth Sciences, Canberra, Australia
Asynchronous warming and δ18O evolution of deep Atlantic water masses during the last deglaciation (286316)
Jiaxu Zhang, Los Alamos National Laboratory, Los Alamos, NM, United States; University of Washington, CICOES, Seattle, United States, Zhengyu Liu, Ohio State University Main Campus, Columbus, OH, United States; The Ohio State University, Department of Geography, Columbus, United States, Esther C Brady, NSF National Center for Atmospheric Research, Boulder, United States, Delia Oppo, WHOI, Geology and Geophysics, Woods Hole, United States, Peter U Clark, Oregon State University, Corvallis, OR, United States, Alexandra Jahn, University of Colorado at Boulder, Atmospheric and Oceanic Sciences and INSTAAR, Boulder, United States, Shaun A Marcott, University of Wisconsin-Madison, Madison, WI, United States and Keith T Lindsay, National Center for Atmospheric Research, Boulder, CO, United States
Heinrich events and sea level changes: records from uplifted coral terraces and marginal seas (264165)
Yusuke Yokoyama1,2, Tezer M Esat3, Hisami Suga4, Stephen Obrochta5 and Naohiko Ohkouchi4, (1)Atmosphere and Ocean Research Institute University of Tokyo, Kashiwa, Japan, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)Australian National University, Research School of Earth Sciences, Canberra, Australia, (4)JAMSTEC, Yokosuka, Japan, (5)AORI, The University of Tokyo, Kashiwa-Shi, Chiba, Japan
Heinrich Events as an integral part of glacial-interglacial climate dynamics (Invited) (212645)
Stephen Barker1, Gregor Knorr2, Xu Zhang3, Xun Gong3, Gerrit Lohmann4 and Lucie Bazin5, (1)Cardiff University, School of Earth and Environmental Sciences, Cardiff, United Kingdom, (2)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany, (5)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France
Correspondence between North Pacific Ocean ventilation, Cordilleran Ice Sheet variations, and North Atlantic Heinrich Events (293059)
Maureen H Walczak1, Alan Mix2, Stewart Fallon3, Summer Kate Praetorius4, Ellen A Cowan5, Jianghui Du6, Tim Hobern7, June Padman2, L Keith Fifield7, Joseph Stephen Stoner2 and Brian A Haley8, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Science, Corvallis, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (3)The Australian National University, Research School of Earth Sciences, Canberra, Australia, (4)Carnegie Institution for Science Stanford, Stanford, CA, United States, (5)Appalachian State University, Boone, NC, United States, (6)ETH Zurich, Institute of Geochemistry and Petrology, Zurich, Switzerland, (7)The Australian National University, Canberra, Australia, (8)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States

See more of: Paleoceanography and Paleoclimatology