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

Submit an Abstract to this Session

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, Bremen, Germany, Gokhan Danabasoglu, NSF National Center for Atmospheric Research, Boulder, 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, 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 Ca'Foscari of Venice, Department of Environmental Sciences, Informatics and Statistics, Mestre, 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)University of Southampton, Ocean and Earth Science, 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 Yeager2, Who M Kim1, Erik Behrens3, Mats Bentsen4, Dave Bi5, Arne Biastoch6, Reiner Bleck7, Claus W Boning8, Alexandra Bozec9, Vittorio Canuto10, Christophe Cassou11, Eric Chassignet12, Andrew Coward13, Sergey Danilov14, Nikolay Diansky15, Helge Drange16, Riccardo Farneti17, Elodie Fernandez18, Pier Giuseppe Fogli19, Thomas Jung20, Gael Forget21, Yosuke Fujii22, Stephen Matthew Griffies23, Anatoly A. Gusev24, Patrick Heimbach25, Armando McNeil Howard26, Mehmet Ilicak27, Alicia R Karspeck2, Maxwell Kelley28, William Large29, Anthony Leboissetier28, Jianhua Lu30, Gurvan Madec31, Simon James Marsland32, Simona Masina33, Antonio Navarra34, A. J. George Nurser13, Anna Pirani35, Anastasia Romanou10, David Salas y Mélia36, Bonita L Hunter Samuels23, Markus Scheinert6, Dmitry Sidorenko37, Shan Sun38, Anne M Treguier39, Hiroyuki Tsujino40, Petteri Uotila41, Sophie Valcke11, Aurore Voldoire42, Qiang Wang43 and Igor Yashayaev44, (1)NSF National Center for Atmospheric Research, Boulder, United States, (2)National Center for Atmospheric Research, Boulder, CO, United States, (3)Earth Sciences New Zealand, Wellington, New Zealand, (4)Uni Climate, Uni Research Ltd., Bergen, Norway, (5)CSIRO, Aspendale, VIC, Australia, (6)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (7)NOAA Earth System Research Laboratory, Boulder, CO, USA, (8)GEOMAR Helmholtz Centre for Ocean Research Kiel, FB1 Ocean Circulation and Climate Dynamics, Kiel, Germany, (9)Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States, (10)NASA Goddard Institute for Space Studies, New York, NY, United States, (11)CERFACS European Centre for Research and Advanced Training in Scientific Computation, Toulouse Cedex 01, France, (12)Florida State University, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, United States, (13)National Oceanography Centre, Southampton, United Kingdom, (14)Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, (15)State oceanography institute, modeling of circulation at the ocean, Moscow, Russia, (16)Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway, (17)The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy, (18)Mercator-Ocean, Toulouse, France, (19)CMCC - Bologna, Bologna, Italy, (20)Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Climate Dynamics, Bremerhaven, Germany, (21)Massachusetts Institute of Technology, EAPS, Cambridge, United States, (22)Meteorological Research Institute, Ibaraki, Japan, (23)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (24)Space Research Institute (IKI) and Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, Russia, (25)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, TX, United States, (26)Medgar Evers College, Brooklyn, NY, United States, (27)Uni Research, Bergen, Norway, (28)NASA Goddard Institute for Space Studies, New York, United States, (29)NCAR, Boulder, CO, United States, (30)Sun Yat-sen University, Zhuhai, China, (31)LOCEAN-IPSL, Paris, France, (32)CSIRO, Aspendale, Australia, (33)Euro-Mediterranean Center on Climate Change, Ocean Modeling and Data Assimilation Division, Bologna, Italy, (34)Istituto Nazional di Geofisica e Vulcanologia, Italy, (35)International CLIVAR Project Office, ICTP, Trieste, Italy, (36)Centre National de Recherches M´et´eorologiques (CNRM-GAME), Toulouse, France, (37)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany, (38)NOAA Global Systems Laboratory, Boulder, United States, (39)Laboratoire de Physique des Oc´eans, UMR 6523, CNRS-Ifremer-IRD-UBO, IUEM, Plouzane, France, (40)Meteorological Research Institute, Tsukuba, Japan, (41)Finnish Meteorological Institute, Helsinki, Finland, (42)CNRM, Toulouse, France, (43)Alfred Wegener Institute for Polar and Marine Research (AWI), Bremerhaven, Germany, (44)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 C Marshall, Massachusetts Institute of Technology, Cambridge, United States
See more of: Physical Oceanography/Ocean Circulation