PL43A:
Atlantic Ocean Variability in a Changing Climate: Observations, Modeling, and Theories III

Session ID#: 92618

Session Description:
By redistributing a large amount of heat and salt, the Atlantic Ocean significantly impacts regional and global climate over a wide range of time scales. In particular, the Atlantic has seen strong variations in the ocean heat and freshwater content over the past couple of decades, as well as in the uptake and storage of anthropogenic carbon, which has been attributed to changes in the ocean circulation, e.g., those related to the Atlantic Meridional Overturning Circulation (AMOC). However, the mechanisms through which the ocean circulation changes (e.g., in the mean state and variability) and impacts the climate system (e.g., via a series of modes of variability such as the Atlantic Multidecadal Variability, the North Atlantic Oscillation), as well as the feedback, remain poorly understood. This session invites submissions that advance our understanding of the Atlantic Ocean variability, the role it plays in the atmosphere–ocean–sea-ice system, and its impact on the future climate. It aims to bring together recent progress in understanding the circulation and climate variability in the Atlantic sector from paleoclimate, historical and future perspectives. Studies utilizing observational, modeling and/or theoretical frameworks are all welcome.
Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • HE - High Latitude Environments
  • PC - Past, Present and Future Climate
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
9325 Atlantic Ocean [GEOGRAPHIC LOCATION]
Primary Chair:  Feili Li, Duke University, Durham, NC, United States
Co-chairs:  Dian Putrasahan, Max Planck Institute for Meteorology, Hamburg, Germany, Laifang Li, Duke Univ-Earth & Ocean Sci, Durham, NC, United States and Rohit Ghosh, Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany
Primary Liaison:  Feili Li, Duke University, Durham, NC, United States
Moderators:  Dian Putrasahan, Max Planck Institute for Meteorology, Hamburg, Germany and Laifang Li, Duke Univ-Earth & Ocean Sci, Durham, NC, United States
Student Paper Review Liaisons:  Dian Putrasahan, Max Planck Institute for Meteorology, Hamburg, Germany and Laifang Li, Duke Univ-Earth & Ocean Sci, Durham, NC, United States

Abstracts Submitted to this Session:

Historical Reconstruction of Anthropogenic Carbon and Excess Heat Content in the Subtropical North Atlantic Ocean (652186)
Marie-Jose Messias, University of Exeter, Geography, Exeter, United Kingdom and Herle Mercier, CNRS, LOPS, Ifremer, Plouzané, France
Changes in ocean water masses reveal accumulation of the climate's excess heat in the Atlantic Ocean (640059)
Jan David Zika1, Jonathan M Gregory2, Elaine McDonagh3, Alice Marzocchi4 and Louis Clement3, (1)University of New South Wales, Mathematics and Statistics, Sydney, Australia, (2)National Centre for Atmospheric Science, University of Reading, Reading, United Kingdom, (3)National Oceanography Centre, Southampton, United Kingdom, (4)University of Chicago, Geophysical Sciences, Chicago, IL, United States
Asymmetries in the thermal and carbon response in climate projections due to effects of air-sea exchange and dynamic redistribution for the Atlantic Ocean (640571)
Richard G Williams1, Anna Katavouta2 and Vassil Roussenov2, (1)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom, (2)University of Liverpool, Liverpool, United Kingdom
Atlantic SST variance changes in warmer climates: Atmospheric and oceanic mechanisms (644789)
Robert Jnglin Wills, University of Washington, Seattle, WA, United States, LuAnne Thompson, University of Washington, School of Oceanography, Seattle, WA, United States and David Battisti, University of Washington, Dept. of Atmospheric Sciences, Seattle, WA, United States
Pacific control of the Atlantic Multidecadal Oscillation - El Niño relationship in the Community Earth System Model - Large Ensemble Simulation (646664)
Dongmin Kim1, Sang-Ki Lee2, Hosmay Lopez1 and Marlos P Goes3, (1)UM-CIMAS/NOAA-AOML, Miami, FL, United States, (2)PHOD/AOML/NOAA, Miami, FL, United States, (3)Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, United States
The Role of Vertical Mixing in Atlantic Multidecadal Variability Amplitude (657714)
Jeremy Michael Michael Klavans1, Lisa Murphy Goes2 and Amy C Clement2, (1)University of Colorado at Boulder, Boulder, CO, United States, (2)University of Miami, RSMAS, Miami, FL, United States
Dynamics responsible for the AMV depends on region (657313)
Olivia Gozdz, George Mason University Fairfax, Fairfax, VA, United States, Martha W Buckley, George Mason University, Fairfax, VA, United States and Laurie L Trenary, Center for Land-Ocean-Atmospheric Studies Fairfax, Atmospheric,Oceanic, and Earth Science, Fairfax, VA, United States