PO43A:
Atlantic Meridional Overturning Circulation: Past, Present, and Future II


Session ID#: 11462

Session Description:
The Atlantic Meridional Overturning Circulation (AMOC) comprises warm upper waters flowing northward, becoming colder and denser until they form deep water in the Nordic and Labrador Seas that then returns southward through the North and South Atlantic. The AMOC transports a substantial amount of heat from the tropics and Southern Hemisphere toward the North Atlantic, where the heat is then transferred to the atmosphere. Consequently, changes in the AMOC could have a profound impact on many aspects of the global climate system. Climate models in unforced control integrations, simulate a rich spectrum of internal AMOC variability on seasonal, through decadal and multidecadal, to multicentennial timescales. The AMOC is also thought to be externally driven, e.g. by solar variability and changing volcanic activity. Anthropogenic climate change may also impact the AMOC, and most climate models project a significant slowing by the end of the century.

We invite contributions on the AMOC of the past millennium, studies that describe the present state of the AMOC including its dynamics, mechanisms of property transport, short-term temporal and spatial variability, and work addressing the future evolution of the AMOC. Observational (proxy and instrumental) as well as modelling studies are welcome.

Primary Chair:  Mojib Latif, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Chairs:  Monika Rhein, MARUM, University of Bremen, Bremen, Germany, Stuart A Cunningham, Scottish Association for Marine Science, Oban, United Kingdom and Gokhan Danabasoglu, NCAR, Boulder, CO, United States
Moderators:  Mojib Latif, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Monika Rhein, University of Bremen, Institute of Environmental Physics, Bremen, Germany, Gokhan Danabasoglu, National Center for Atmospheric Research, Boulder, CO, United States and Stuart A Cunningham, The Scottish Association for Marine Science, Oban, United Kingdom
Student Paper Review Liaisons:  Mojib Latif, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Monika Rhein, University of Bremen, Institute of Environmental Physics, Bremen, Germany
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
4255 Numerical modeling [OCEANOGRAPHY: GENERAL]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
4513 Decadal ocean variability [OCEANOGRAPHY: PHYSICAL]
Co-Sponsor(s):
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

PO43A-01
Extreme Sea Level Rise Event Linked to 2009-10 AMOC Downturn (89098)
Jianjun Yin, University of Arizona, Tucson, AZ, United States
PO43A-02
The relation between AMOC, gyre circulation, and meridional heat transports in the North Atlantic in model simulations of the last millennium (89431)
Johann H Jungclaus1, Eduardo Moreno-Chamarro2, Katja Lohmann1 and Davide Zanchettin3, (1)Max Planck Institute for Meteorology, Hamburg, Germany, (2)International Max Planck Research School on Earth System Modelling, Hamburg, Germany, (3)University of Venice, Venice, Italy
PO43A-04
The Role of the Nordic Seas in Promoting Deep Water Formation in the Northern Hemisphere (90643)
Louis-Philippe Nadeau, Université du Québec à Rimouski, Institut des sciences de la mer de Rimouski, Rimouski, QC, Canada and Raffaele M Ferrari, Massachusetts Institute of Technology, Cambridge, MA, United States
PO43A-05
The Subpolar AMOC: Dynamic Response of the Horizontal and Overturning Circulations due to Ocean Heat Content Changes between 1990 and 2014 (90956)
Stuart A Cunningham1, Bee Berx2 and Clare Johnson1, (1)Scottish Association for Marine Science, Oban, United Kingdom, (2)Marine Scotland Science, Aberdeen, United Kingdom
PO43A-06
Sea-level fluctuations show ocean circulation impact on Atlantic multidecadal variability (91135)
Gerard D McCarthy1, Ivan David Haigh2, Joel Hirschi1, Jeremy P Grist1 and David Smeed1, (1)National Oceanography Centre, Southampton, United Kingdom, (2)Ocean and Earth Science, National Oceanography Centre Southampton, Southampton, United Kingdom
PO43A-07
North Atlantic Simulations in Coordinated Ocean-ice Reference Experiments phase II (CORE-II): Inter-Annual to Decadal Variability (88910)
Gokhan Danabasoglu1, Stephen G Yeager1, Who M Kim1, Erik Behrens2, Mats Bentsen3, Dave Bi4, Arne Biastoch5, Reiner Bleck6, Claus W Boning7, Alexandra Bozec8, Vittorio Canuto9, Christophe Cassou10, Eric Chassignet11, Andrew Coward12, Sergey Danilov13, Nikolay Diansky14, Helge Drange15, Riccardo Farneti16, Elodie Fernandez17, Pier Giuseppe Fogli18, Thomas Jung13, Gaël Forget19, Yosuke Fujii20, Stephen Matthew Griffies21, Anatoly A. Gusev22, Patrick Heimbach23, Armando McNeil Howard24, Mehmet Ilicak25, Alicia R Karspeck1, Maxwell Kelley9, William Large26, Anthony Leboissetier9, Jianhua Lu27, Gurvan Madec28, Simon James Marsland4, Simona Masina29, Antonio Navarra30, A. J. George Nurser12, Anna Pirani31, Anastasia Romanou9, David Salas y Mélia32, Bonita L Hunter Samuels21, Markus Scheinert5, Dmitry Sidorenko33, Shan Sun34, Anne M Treguier35, Hiroyuki Tsujino20, Petteri Uotila36, Sophie Valcke10, Aurore Voldoire37, Qiang Wang38 and Igor Yashayaev39, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, (3)Uni Climate, Uni Research Ltd., Bergen, Norway, (4)CSIRO, Aspendale, Australia, (5)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (6)NOAA Earth System Research Laboratory, Boulder, CO, USA, (7)GEOMAR Helmholtz Centre for Ocean Research Kiel, FB1 Ocean Circulation and Climate Dynamics, Kiel, Germany, (8)Center for Ocean-Atmospheric Prediction Studies, Tallahassee, FL, United States, (9)NASA Goddard Institute for Space Studies, New York, NY, United States, (10)CERFACS European Centre for Research and Advanced Training in Scientific Computation, Toulouse Cedex 01, France, (11)Florida State University, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, FL, United States, (12)National Oceanography Centre, Southampton, United Kingdom, (13)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (14)State oceanography institute, modeling of circulation at the ocean, Moscow, Russia, (15)Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway, (16)ICTP, Earth System Physics Section, Trieste, Italy, (17)Mercator-Ocean, Toulouse, France, (18)CMCC - Bologna, Bologna, Italy, (19)Massachusetts Institute of Technology, Cambridge, MA, United States, (20)Meteorological Research Institute, Tsukuba, Ibaraki, Japan, (21)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (22)Space Research Institute (IKI) and Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, Russia, (23)University of Texas at Austin, Austin, TX, United States, (24)Medgar Evers College, Brooklyn, NY, United States, (25)Uni Research, Bergen, Norway, (26)NCAR, Boulder, CO, United States, (27)Florida State Univ, Tallahassee, FL, United States, (28)LOCEAN-IPSL, Paris, France, (29)Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy, (30)Istituto Nazional di Geofisica e Vulcanologia, Italy, (31)International CLIVAR Project Office, ICTP, Trieste, Italy, (32)Centre National de Recherches M´et´eorologiques (CNRM-GAME), Toulouse, France, (33)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany, (34)University of Colorado Boulder, Boulder, CO, United States, (35)Laboratoire de Physique des Oc´eans, UMR 6523, CNRS-Ifremer-IRD-UBO, IUEM, Plouzane, France, (36)Finnish Meteorological Institute, Helsinki, Finland, (37)CNRM, Toulouse, France, (38)Alfred Wegener Institute for Polar and Marine Research (AWI), Bremerhaven, Germany, (39)Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, NS, Canada
PO43A-08
The Importance of the Transition Zone to Decadal AMOC Variability (93398)
Martha W Buckley, George Mason University Fairfax, Fairfax, VA, United States and John Marshall, Massachusetts Institute of Technology, Cambridge, MA, United States
See more of: Physical Oceanography/Ocean Circulation