PO44A:
Atlantic Meridional Overturning Circulation: Past, Present, and Future III Posters


Session ID#: 7809

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:  Stuart A Cunningham, Scottish Association for Marine Science, Oban, United Kingdom, Gokhan Danabasoglu, National Center for Atmospheric Research, Boulder, CO, United States, Monika Rhein, University of Bremen, Institute of Environmental Physics, Bremen, Germany and Mojib Latif, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Student Paper Review Liaison:  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:

 
Resolution-dependent interannual Gulf Stream, heat content, and AMOC variability in the CMIP5 (87685)
Andrew M Davis, University of Washington, Seattle, WA, United States and LuAnne Thompson, University of Washington Seattle Campus, Seattle, WA, United States
 
Subpolar North Atlantic glider observations for OSNAP (89611)
Chun Zhou1, Benjamin Hodges2, Amy S Bower2, Jiayan Yang2 and Xiaopei Lin1, (1)Ocean University of China, Qingdao, China, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
 
Forced Atlantic Multidecadal Variability Over the Past Millennium (87550)
Paul Richard Halloran1, David Reynolds2, James David Scourse3 and Ian R Hall2, (1)Met Office Hadley Centre, Exeter, United Kingdom, (2)Cardiff University, School of Earth and Ocean Sciences, Cardiff, United Kingdom, (3)University of Exeter, Exeter, United Kingdom
 
Tracing the Sinking of Dense Ocean Waters in the North Atlantic Ocean (89671)
Nils Brueggemann, Delft University of Technology, Civil Engineering and Geosciences / Hydraulic Engineering, Delft, Netherlands, Caroline A Katsman, Delft University of Technology, Department of Hydraulic Engineering, Delft, Netherlands and Henk Dijkstra, Utrecht University, Netherlands
 
Forced and Chaotic AMOC Variability at Various Timescales : Insights from OGCM Ensemble Simulations (87831)
Thierry Penduff1, Stephanie Leroux2, Guillaume Serazin1,3, Laurent Bessières3, Sandy O Gregorio1, Jean-Marc Molines4 and Bernard Barnier4, (1)CNRS - LGGE, MEOM, Grenoble, France, (2)IGE, MEOM, Grenoble, France, (3)CERFACS-CNRS, Toulouse, France, (4)CNRS - IGE, MEOM, Grenoble, France
 
The link between CMIP5 model biases and the simulation of North Atlantic decadal variability (Invited) (87847)
Matthew Menary1,2, Dan Hodson2, Jon Robson2, Rowan Sutton2, Richard A. Wood3 and Jonathan A Hunt1, (1)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (2)University of Reading, Reading, United Kingdom, (3)Met Office Hadley Centre, Exeter, United Kingdom
 
Comparison of the Atlantic Meridional Overturning Circulation behaviors in HYCOM and POP within the CESM (88261)
Alexandra Bozec, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, FL, United States and Eric P. Chassignet, The Florida State University
 
Seasonal varability of the Canary Current (88614)
Pedro Vélez-Belchí, Spanish Institute of Oceanography, Centro Oceanográfico de Canarias, Santa Cruz de Tenerife, Spain, Alonso Hernandez-Guerra, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain and M. Dolores Pérez-Hernández, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States
 
ON THE FORMATION OF MERIDIONAL OVERTURNING CIRCULATION IN THE PACIFIC OCEAN DURING THE MIS31 INTERGLACIAL (88712)
Flavio B Justino, Universidade Federal de Viçosa, Viçosa, MNG, Brazil, Douglas Lindemann, Universidade Federal de Viçosa, Viçosa, Brazil and Fred Kucharski, Abdus Salam International Center for Theoretical Physics, Earth Physics Section, Trieste, Italy
 
Forcing of global ocean ice models using an atmospheric boundary layer model: assessing consequences for the simulation of the AMOC (88715)
Rafael Abel and Claus W Boning, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
 
Suppression of AMOC variability at increased CO2 (88943)
Douglas G MacMartin, California Institute of Technology, Pasadena, CA, United States, Eli Tziperman, Harvard University, Cambridge, MA, United States and Laure Zanna, University of Oxford, Dept of Physics, Oxford, United Kingdom
 
Effect of Global Warming and Increased Freshwater Flux on Northern Hemispheric Cooling (89175)
Lakshika NK Girihagama and Doron Nof, Florida State Univ, Tallahassee, FL, United States
 
Gyre-specific Ocean Heat Content Changes Controlled by the Meridional Overturning in the North Atlantic (89594)
Vassil Roussenov, University of Liverpool, Liverpool, United Kingdom, Richard G Williams, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, M Susan Lozier, Duke University, Durham, NC, United States and Doug M Smith, Met Office Hadley center for Climate Change, Exeter, United Kingdom
 
Comparison of AMOC variability in ocean reanalysis products back to 1960 (91964)
Alicia R Karspeck, National Center for Atmospheric Research, Boulder, CO, United States