PL41A:
Atlantic Ocean Variability in a Changing Climate: Observations, Modeling, and Theories I

Session ID#: 92610

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]
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
9325 Atlantic Ocean [GEOGRAPHIC LOCATION]
Primary Chair:  Feili Li, Duke University, Durham, United States
Co-chairs:  Rohit Ghosh1, Laifang Li2 and Dian Putrasahan1, (1)Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany(2)Duke Univ-Earth & Ocean Sci, Durham, NC, United States
Primary Liaison:  Feili Li, Duke University, Durham, United States
Moderators:  Feili Li, Duke University, Durham, United States and Rohit Ghosh, Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany
Student Paper Review Liaisons:  Feili Li, Duke University, Durham, United States and Rohit Ghosh, Max Planck Institute for Meteorology, The Ocean in the Earth System, Hamburg, Germany

Abstracts Submitted to this Session:

PL41A-01
A century of AMOC variability reconstructed from observations using the Bernoulli inverse (496682)
Neil Fraser and Stuart A Cunningham, Scottish Association for Marine Science, Oban, United Kingdom
PL41A-02
Changing Sea Ice in the Nordic Seas and its Effect on Water Mass Transformation (650034)
Mari Fjalstad Jensen1, Kerim Hestnes Nisancioglu1, Michael A Spall2 and Kjetil Våge1, (1)University of Bergen and the Bjerknes Centre for Climate Research, Bergen, Norway, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
PL41A-03
East-west connectivity in the subpolar gyre: impact on Labrador Sea Water properties (654151)
Yavor Kostov, University of Exeter, Exeter, EX4, United Kingdom, Marie-Jose Messias, University of Exeter, Geography, Exeter, United Kingdom, David Philip Marshall, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, Herle Mercier, IFREMER, LPO, Plouzané, France and David Philip Marshall, University of Oxford, Oxford, United Kingdom
PL41A-04
Spreading Patterns of the Labrador Sea Water and Nordic Seas Overflow Water in the North Atlantic (646169)
Xiaobiao Xu, Florida State University, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, FL, United States and Eric Chassignet, Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States
PL41A-05
Reconciling the role of the Labrador Sea overturning circulation in OSNAP and climate models (641489)
Matthew Menary, Sorbonne Universités, LOCEAN, Paris, France, Laura C Jackson, UK Met Office, Exeter, United Kingdom and Susan Lozier, Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States
PL41A-06
Attribution of Subtropical Versus Subpolar Atlantic Overturning Variability (639798)
David Philip Marshall, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, Yavor Kostov, University of Exeter, Exeter, United Kingdom and David Philip Marshall, University of Oxford, Oxford, United Kingdom
PL41A-07
Exploring the Information Potency of OSNAP Mooring Data in the Arctic and Subpolar Gyre State Estimate (652773)
Helen Pillar1, An T Nguyen2, Patrick Heimbach3, Arash Bigdeli3, Nora Loose3, Victor Ocaña1, Susan Lozier4 and Feili Li5,6, (1)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, United States, (2)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, United States, (3)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, TX, United States, (4)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States, (5)Duke University, Durham, United States, (6)Georgia Institute of Technology Main Campus, School of Earth & Atmospheric Sciences, Atlanta, GA, United States
PL41A-08
Mechanisms of low-frequency variability in North Atlantic Ocean heat transport (639327)
Dylan Oldenburg, University of Washington Seattle Campus, Oceanography, Seattle, United States, Robert Jnglin Wills, ETH Zürich, Institute for Atmospheric and Climate Science, Zürich, Switzerland, Kyle Armour, University of Washington, Dept. of Atmospheric Sciences and School of Oceanography, Seattle, United States and LuAnne Thompson, University of Washington, School of Oceanography, Seattle, United States
See more of: Physical Oceanography: Mesoscale and Larger