PL53A:
Advances in Our Understanding of the Meridional Overturning Circulation in the South Atlantic II


Session ID#: 36784

Session Description:
The meridional overturning circulation (MOC) is a key component of the climate system because of its role in redistributing heat, salt and carbon around the globe. The tremendous growth of the MOC observing system over the past ~15 years has led to new discoveries about the spatial and temporal variability of the MOC and how it influences coastal sea level, weather, and climate. Models and observations have shown that the water masses formed in remote regions are significantly altered as they transit the South Atlantic by processes such as mixing, advection, and local air-sea interactions. These modifications may lead to changes of the MOC strength and variability, and thus of the meridional heat and freshwater transport changes. In this session, we focus on recent results gleaned from observing systems in the South Atlantic, including moored, satellite, shipboard, and Lagrangian measurements. Recent model results on the MOC in the region, are also welcome. Together these observations and modeling results can provide a comprehensive view on South Atlantic MOC (SAMOC) variability. We encourage abstract submissions on new MOC-related findings in the South Atlantic, as well as on recommendation and/or design studies for the future evolution of the SAMOC observing system.
Primary Chair:  Renellys C Perez, UM/CIMAS, Miami, FL, United States
Co-chairs:  Maria Paz Chidichimo, Argentine Scientific Research Council (CONICET); Hydrographic Service, Buenos Aires, Argentina, Rebecca Marie Hummels, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Tarron Lamont, Department of Environmental Affairs, Oceans & Coasts Research Branch, Cape Town 8012, South Africa
Moderators:  Maria Paz Chidichimo, Argentine Scientific Research Council (CONICET); Hydrographic Service, Buenos Aires, Argentina, Renellys C Perez, UM/CIMAS & NOAA/AOML, Miami, FL, United States and Tarron Lamont, Department of Environmental Affairs, Oceans & Coasts Research Branch, Cape Town 8012, South Africa
Student Paper Review Liaison:  Renellys C Perez, UM/CIMAS & NOAA/AOML, Miami, FL, United States
Index Terms:

4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
4283 Water masses [OCEANOGRAPHY: GENERAL]
4516 Eastern boundary currents [OCEANOGRAPHY: PHYSICAL]
4576 Western boundary currents [OCEANOGRAPHY: PHYSICAL]
Cross-Topics:
  • CD - Coastal Dynamics
  • OM - Ocean Modeling
  • PS - Physical Oceanography: Mesoscale and Smaller
  • RS - Regional Studies

Abstracts Submitted to this Session:

Daily MOC measurements at 34.5°S in the South Atlantic: Results during 2009-2010 and 2013-2015 using near-boundary moorings and satellite winds (301916)
Christopher S Meinen, Atlantic Oceanographic and Meteorological Laboratory, Physical Oceanography Division, Miami, FL, United States, Sabrina Speich, Ecole Normale Supérieure Paris, Paris, France, Renellys C Perez, UM/CIMAS, Miami, FL, United States, Marion Kersalé, CIMAS-Univ. of Miami & NOAA-AOML, Miami, FL, United States, Maria Paz Chidichimo, Argentine Scientific Research Council (CONICET); Hydrographic Service, Buenos Aires, Argentina, Daniel Valla, Consejo Nacional de Investigaciones Científicas y Técnicas / SHN, Argentina, Argentina, Matthieu Le Henaff, CIMAS/University of Miami, Miami, FL, United States, Shenfu Dong, AOML/NOAA, Miami, FL, United States, Tarron Lamont, Department of Environmental Affairs, Oceans & Coasts Research Branch, Cape Town 8012, South Africa, Olga T Sato, Oceanographic Institute of the University of Sao Paulo IOUSP, Sao Paulo, Brazil, Thierry Terre, Ifremer, Laboratoire de Physique des Océans, Plouzané, France, Alberto R Piola, Argentine Hydrographic Service, Buenos Aires, Argentina, Edmo J Campos, USP University of Sao Paulo, São Paulo, Brazil, Isabelle Jane Ansorge, university of Cape Town, Department of Oceanography, Cape Town, South Africa and Silvia Lucia Garzoli, UM/CIMAS & NOAA/AOML, Miami, FL, United States
Trends in the South Atlantic Meridional Transports and the Relationship with Precipitation Regime in the Western Tropical Atlantic (325693)
Edmo J Campos, USP University of Sao Paulo, São Paulo, Brazil, Paola Castellanos, Institut de Ciències del Mar, Physical Oceanography, Barcelona, Spain and Olga T Sato, Oceanographic Institute of the University of Sao Paulo IOUSP, Sao Paulo, Brazil
A reconstructed South Atlantic Meridional Overturning Circulation time series since 1870: Implications for weather and climate. (324485)
Hosmay Lopez, University of Miami, Cooperative Institute for Marine and Atmospheric Studies, Miami, FL, United States, Gustavo Jorge Goni, NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States, Shenfu Dong, AOML/NOAA, Miami, FL, United States and Sang-Ki Lee, Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States
Sources for the Upper Limb of the AMOC – Cold and Warm Water Routes Revisited in an Eddy-Resolving Ocean Model (307766)
Siren Ruhs, Franziska U Schwarzkopf and Arne Biastoch, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Variability of the Eastern Boundary Currents at 34.5°S in the South Atlantic (306297)
Marion Kersalé1, Renellys C Perez2, Christopher S Meinen3, Matthieu Le Henaff1, Isabelle Jane Ansorge4, Tarron Lamont5, Marcel Van den Berg6, Thierry Terre7 and Sabrina Speich8, (1)University of Miami, Miami, FL, United States, (2)UM/CIMAS, Miami, FL, United States, (3)Atlantic Oceanographic and Meteorological Laboratory, Physical Oceanography Division, Miami, FL, United States, (4)university of Cape Town, Department of Oceanography, Cape Town, South Africa, (5)Department of Environmental Affairs, Oceans & Coasts Research Branch, Cape Town 8012, South Africa, (6)Department of Environmental Affairs, Oceans & Coasts Research Branch, Cape Town, South Africa, (7)Ifremer, Laboratoire de Physique des Océans, Plouzané, France, (8)Ecole Normale Supérieure Paris, Paris, France
Transport Efficiency of an Agulhas Ring from Combined Satellite Altimetry and Argo Profiles (311978)
Francesco Nencioli, Plymouth Marine Laboratory, EOSA, Plymouth, PL1, United Kingdom and Giorgio Dall'Olmo, Plymouth Marine Laboratory, Plymouth, United Kingdom
Agulhas Dynamics and MOC in a High-Resolution Ocean-Atmosphere System Model (317038)
Jan Harlass, Annika Drews, Franziska U Schwarzkopf, Arne Biastoch and Katja Matthes, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Observing the Variability of the Western Boundary Current and the Atlantic Meridional Overturning Circulation at 11°S (318271)
Josefine Herrford, Rebecca Marie Hummels and Peter Brandt, GEOMAR, Kiel, Germany

See more of: Physical Oceanography: Mesoscale and Larger