PC34B:
Long-Term Changes of the Deep-Ocean Overturning Circulation: Past and Future II Posters

Session ID#: 85028

Session Description:
As a key component of the climate system, the deep-ocean overturning circulation, with its interconnected branches in the Atlantic, Indian, Pacific, and Southern Oceans regulates the global transport of heat, freshwater and carbon. Paleo-reconstructions indicate that long-term variations in the meridional overturning circulation (MOC), from centennial, millennial, to even longer timescales, have played a pivotal role in past climate changes. Nevertheless, an understanding of the mechanisms that drive these long-term variations remains a major challenge in climate research. Our ability to predict future MOC variability and anthropogenic climate change, meanwhile, depends critically on our understanding of the mechanisms of MOC variability during past climatic changes. This interdisciplinary session aims to bring together theoretical, modeling and observational studies, as well as novel methodologies that combine above approaches, to study the spatial-temporal structures, mechanisms, and impacts of long-term changes of the MOC in the past and future.
Co-Sponsor(s):
  • HE - High Latitude Environments
  • OM - Ocean Modeling
  • PL - Physical Oceanography: Mesoscale and Larger
Index Terms:

1620 Climate dynamics [GLOBAL CHANGE]
4901 Abrupt/rapid climate change [PALEOCEANOGRAPHY]
4928 Global climate models [PALEOCEANOGRAPHY]
4962 Thermohaline [PALEOCEANOGRAPHY]
Primary Chair:  Wei Liu, University of California Riverside, Riverside, CA, United States
Co-chairs:  Zhengyu Liu, Ohio State University Main Campus, Columbus, OH, United States, Malte Jansen, University of Chicago, Department of the Geophysical Sciences, Chicago, IL, United States and Sophia Hines, Lamont -Doherty Earth Observatory, Palisades, United States
Primary Liaison:  Wei Liu, University of California Riverside, Riverside, CA, United States
Moderators:  Wei Liu, University of California Riverside, Riverside, CA, United States and Malte Jansen, University of Chicago, Department of the Geophysical Sciences, Chicago, IL, United States
Student Paper Review Liaisons:  Zhengyu Liu, The Ohio State University, Department of Geography, Columbus, United States and Sophia Hines, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States

Abstracts Submitted to this Session:

 
Connecting Atmospheric Dynamics to Abyssal Ocean Geometry on Paleoclimate Time Scales (Invited) (655213)
Daniel E Amrhein, National Center for Atmospheric Research, Boulder, CO, United States and LuAnne Thompson, University of Washington, School of Oceanography, Seattle, WA, United States
 
Deep Water Dynamics in the Cape Basin during the Mid Pleistocene Transition (652524)
Mollie Passacantando, Rutgers University New Brunswick, Marine and Coastal Sciences, New Brunswick, NJ, United States, Sophia Hines, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States and Sidney R Hemming, Lamont-Doherty Earth Observatory, Palisades, United States
 
Deglacial CO2 changes in the northwest Pacific (Shatsky Rise) (648777)
Youngsook Huh1, Sunhwa Bang1 and Jung Ok Kang2, (1)Seoul National University, Seoul, Korea, Republic of (South), (2)Seoul National University, Seoul, South Korea
 
Sedimentary Records of Deep Water Export From the Arctic to the North Atlantic Ocean (654517)
Lauren Elizabeth Kipp, Lamont -Doherty Earth Observatory, Palisades, NY, United States; Dalhousie University, Halifax, NS, Canada, Markus Kienast, Dalhousie University, Department of Oceanography, Halifax, NS, Canada and Jerry F McManus, Columbia U. / LDEO, Palisades, United States
 
Investigating the Return Pathways of North Atlantic Deep Water Using ECCO4 Reanalysis Data (652244)
Tatsu Monkman, University of Chicago, Geophysical Sciences, Chicago, United States
 
An Update on the Thermosteric Sea Level Rise Commitment to Global Warming (638905)
Magnus Hieronymus, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden
 
The Evolving AMOC Multidecadal Variability in a Warming Climate. (642005)
Xiaofan Ma, Institute of Atmospheric Sciences, Chinese Academy of Sciences, Beijing, China; University of California, Riverside, Riverside, CA, United States, Wei Liu, University of California Riverside, Riverside, CA, United States, Changlin Chen, Fudan University, Shanghai, China, Jun Cheng, NUIST Nanjing University of Information Science and Technology, Nanjing, China, Gang Huang, IAP Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China and Xichen Li, Institute of Atmospheric Physics, CAS, Beijing, China
 
The Effects of Ozone Change on Southern Ocean MOC, Heat Uptake and Storage (649319)
Shouwei Li and Wei Liu, University of California Riverside, Riverside, CA, United States