Articles | Volume 15, issue 3
https://doi.org/10.5194/os-15-489-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-15-489-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 May 2019
Research article |
| 09 May 2019
| 09 May 2019
Cold vs. warm water route – sources for the upper limb of the Atlantic Meridional Overturning Circulation revisited in a high-resolution ocean model
Research Unit Ocean Dynamics, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
now at: Ocean Frontier Institute, Dalhousie University, Halifax, Canada
Invited contribution by Siren Rühs, recipient of the EGU Ocean Sciences Outstanding Student Poster and PICO Award 2017.
Franziska U. Schwarzkopf
Research Unit Ocean Dynamics, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Sabrina Speich
LMD-IPSL, UMR 8539, Département de Géosciences, ENS, PSL
Research University, Paris, France
Arne Biastoch
Research Unit Ocean Dynamics, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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Cited
35 citations as recorded by crossref.
- Salinity Biases and the Variability of the Atlantic Meridional Overturning Circulation in GFDL-CM3 F. Matos et al. 10.1007/s12601-020-0040-8
- Robust estimates for the decadal evolution of Agulhas leakage from the 1960s to the 2010s S. Rühs et al. 10.1038/s43247-022-00643-y
- Pulses of South Atlantic water into the tropical North Atlantic since 1825 from coral isotopes M. Paterne et al. 10.1126/sciadv.adi1687
- The Surface Pathways of the South Atlantic: Revisiting the Cold and Warm Water Routes Using Observational Data K. Drouin & M. Lozier 10.1029/2019JC015267
- The INALT family – a set of high-resolution nests for the Agulhas Current system within global NEMO ocean/sea-ice configurations F. Schwarzkopf et al. 10.5194/gmd-12-3329-2019
- Submesoscale Impacts on Mesoscale Agulhas Dynamics R. Schubert et al. 10.1029/2019MS001724
- A late Pleistocene dataset of Agulhas Current variability M. Simon et al. 10.1038/s41597-020-00689-7
- Vertical Structure and Seasonal Variability of the Inflow to the Lofoten Basin Inferred From High‐Resolution Lagrangian Simulations J. Dugstad et al. 10.1029/2019JC015474
- Coupling of the mid-depth and abyssal components of the global overturning circulation according to a state estimate L. Rousselet et al. 10.1126/sciadv.abf5478
- The Water Mass Transformation in the Upper Limb of the Overturning Circulation in the Southern Hemisphere S. Berglund et al. 10.1029/2021JC017330
- A view of the Brazil-Malvinas confluence, March 2015 D. Orúe-Echevarría et al. 10.1016/j.dsr.2021.103533
- Transports and Pathways of the Tropical AMOC Return Flow From Argo Data and Shipboard Velocity Measurements F. Tuchen et al. 10.1029/2021JC018115
- Ancient marine sediment DNA reveals diatom transition in Antarctica L. Armbrecht et al. 10.1038/s41467-022-33494-4
- Mesopelagic fish assemblages in the Mauritanian Upwelling System off Northwest Africa with oxygen as a major driving force S. Duncan et al. 10.3354/meps14524
- Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate L. Rousselet et al. 10.1029/2020GL089137
- A 25,000 year record of climate and vegetation change from the southwestern Cape coast, South Africa L. Quick et al. 10.1017/qua.2021.31
- Machine Learning-Based Anomaly Detection on Seawater Temperature Data with Oversampling H. Kang et al. 10.3390/jmse12050807
- Thermodynamic air-sea equilibration controls carbon isotopic composition of the South Atlantic thermocline during the last glacial period T. Pinho et al. 10.1016/j.gloplacha.2023.104223
- Projected Atlantic overturning slow-down is to be compensated by a strengthened South Atlantic subtropical gyre F. Marcello et al. 10.1038/s43247-023-00750-4
- Twenty-first-century Southern Hemisphere impacts of ozone recovery and climate change from the stratosphere to the ocean I. Ivanciu et al. 10.5194/wcd-3-139-2022
- Resolving and Parameterising the Ocean Mesoscale in Earth System Models H. Hewitt et al. 10.1007/s40641-020-00164-w
- Multi‐Year Estimates of Daily Heat Transport by the Atlantic Meridional Overturning Circulation at 34.5°S M. Kersalé et al. 10.1029/2020JC016947
- Energetic overturning flows, dynamic interocean exchanges, and ocean warming observed in the South Atlantic M. Chidichimo et al. 10.1038/s43247-022-00644-x
- Lagrangian Views of the Pathways of the Atlantic Meridional Overturning Circulation A. Bower et al. 10.1029/2019JC015014
- Tracking Spread of the Agulhas Leakage Into the Western South Atlantic and Its Northward Transmission During the Last Interglacial J. Ballalai et al. 10.1029/2019PA003653
- Variability and Trends of the South Atlantic Subtropical Gyre K. Drouin et al. 10.1029/2020JC016405
- Transport Structure of the South Atlantic Ocean Derived From a High-Resolution Numerical Model and Observations X. Xu et al. 10.3389/fmars.2022.811398
- Characteristics and robustness of Agulhas leakage estimates: an inter-comparison study of Lagrangian methods C. Schmidt et al. 10.5194/os-17-1067-2021
- Mixing and Overturning Across the Brazil‐Malvinas Confluence D. Orúe‐Echevarría et al. 10.1029/2022JC018730
- North Atlantic Ocean Circulation and Related Exchange of Heat and Salt Between Water Masses S. Berglund et al. 10.1029/2022GL100989
- Simulating the spread of disinfection by-products and anthropogenic bromoform emissions from ballast water discharge in Southeast Asia J. Maas et al. 10.5194/os-15-891-2019
- On the Variability of the DWBC Transport Between 26.5°N and 16°N in an Eddy‐Rich Ocean Model T. Schulzki et al. 10.1029/2021JC017372
- Orbital- and millennial-scale Antarctic Circumpolar Current variability in Drake Passage over the past 140,000 years S. Wu et al. 10.1038/s41467-021-24264-9
- Surface Pathways Connecting the South and North Atlantic Oceans K. Drouin et al. 10.1029/2021GL096646
- Source waters contribution to the tropical Atlantic central layer: New insights on the Indo-Atlantic exchanges E. Azar et al. 10.1016/j.dsr.2020.103450
35 citations as recorded by crossref.
- Salinity Biases and the Variability of the Atlantic Meridional Overturning Circulation in GFDL-CM3 F. Matos et al. 10.1007/s12601-020-0040-8
- Robust estimates for the decadal evolution of Agulhas leakage from the 1960s to the 2010s S. Rühs et al. 10.1038/s43247-022-00643-y
- Pulses of South Atlantic water into the tropical North Atlantic since 1825 from coral isotopes M. Paterne et al. 10.1126/sciadv.adi1687
- The Surface Pathways of the South Atlantic: Revisiting the Cold and Warm Water Routes Using Observational Data K. Drouin & M. Lozier 10.1029/2019JC015267
- The INALT family – a set of high-resolution nests for the Agulhas Current system within global NEMO ocean/sea-ice configurations F. Schwarzkopf et al. 10.5194/gmd-12-3329-2019
- Submesoscale Impacts on Mesoscale Agulhas Dynamics R. Schubert et al. 10.1029/2019MS001724
- A late Pleistocene dataset of Agulhas Current variability M. Simon et al. 10.1038/s41597-020-00689-7
- Vertical Structure and Seasonal Variability of the Inflow to the Lofoten Basin Inferred From High‐Resolution Lagrangian Simulations J. Dugstad et al. 10.1029/2019JC015474
- Coupling of the mid-depth and abyssal components of the global overturning circulation according to a state estimate L. Rousselet et al. 10.1126/sciadv.abf5478
- The Water Mass Transformation in the Upper Limb of the Overturning Circulation in the Southern Hemisphere S. Berglund et al. 10.1029/2021JC017330
- A view of the Brazil-Malvinas confluence, March 2015 D. Orúe-Echevarría et al. 10.1016/j.dsr.2021.103533
- Transports and Pathways of the Tropical AMOC Return Flow From Argo Data and Shipboard Velocity Measurements F. Tuchen et al. 10.1029/2021JC018115
- Ancient marine sediment DNA reveals diatom transition in Antarctica L. Armbrecht et al. 10.1038/s41467-022-33494-4
- Mesopelagic fish assemblages in the Mauritanian Upwelling System off Northwest Africa with oxygen as a major driving force S. Duncan et al. 10.3354/meps14524
- Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate L. Rousselet et al. 10.1029/2020GL089137
- A 25,000 year record of climate and vegetation change from the southwestern Cape coast, South Africa L. Quick et al. 10.1017/qua.2021.31
- Machine Learning-Based Anomaly Detection on Seawater Temperature Data with Oversampling H. Kang et al. 10.3390/jmse12050807
- Thermodynamic air-sea equilibration controls carbon isotopic composition of the South Atlantic thermocline during the last glacial period T. Pinho et al. 10.1016/j.gloplacha.2023.104223
- Projected Atlantic overturning slow-down is to be compensated by a strengthened South Atlantic subtropical gyre F. Marcello et al. 10.1038/s43247-023-00750-4
- Twenty-first-century Southern Hemisphere impacts of ozone recovery and climate change from the stratosphere to the ocean I. Ivanciu et al. 10.5194/wcd-3-139-2022
- Resolving and Parameterising the Ocean Mesoscale in Earth System Models H. Hewitt et al. 10.1007/s40641-020-00164-w
- Multi‐Year Estimates of Daily Heat Transport by the Atlantic Meridional Overturning Circulation at 34.5°S M. Kersalé et al. 10.1029/2020JC016947
- Energetic overturning flows, dynamic interocean exchanges, and ocean warming observed in the South Atlantic M. Chidichimo et al. 10.1038/s43247-022-00644-x
- Lagrangian Views of the Pathways of the Atlantic Meridional Overturning Circulation A. Bower et al. 10.1029/2019JC015014
- Tracking Spread of the Agulhas Leakage Into the Western South Atlantic and Its Northward Transmission During the Last Interglacial J. Ballalai et al. 10.1029/2019PA003653
- Variability and Trends of the South Atlantic Subtropical Gyre K. Drouin et al. 10.1029/2020JC016405
- Transport Structure of the South Atlantic Ocean Derived From a High-Resolution Numerical Model and Observations X. Xu et al. 10.3389/fmars.2022.811398
- Characteristics and robustness of Agulhas leakage estimates: an inter-comparison study of Lagrangian methods C. Schmidt et al. 10.5194/os-17-1067-2021
- Mixing and Overturning Across the Brazil‐Malvinas Confluence D. Orúe‐Echevarría et al. 10.1029/2022JC018730
- North Atlantic Ocean Circulation and Related Exchange of Heat and Salt Between Water Masses S. Berglund et al. 10.1029/2022GL100989
- Simulating the spread of disinfection by-products and anthropogenic bromoform emissions from ballast water discharge in Southeast Asia J. Maas et al. 10.5194/os-15-891-2019
- On the Variability of the DWBC Transport Between 26.5°N and 16°N in an Eddy‐Rich Ocean Model T. Schulzki et al. 10.1029/2021JC017372
- Orbital- and millennial-scale Antarctic Circumpolar Current variability in Drake Passage over the past 140,000 years S. Wu et al. 10.1038/s41467-021-24264-9
- Surface Pathways Connecting the South and North Atlantic Oceans K. Drouin et al. 10.1029/2021GL096646
- Source waters contribution to the tropical Atlantic central layer: New insights on the Indo-Atlantic exchanges E. Azar et al. 10.1016/j.dsr.2020.103450
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Short summary
We revisit the sources for the upper limb of the overturning circulation in the South Atlantic by tracking fluid particles in a high-resolution ocean model. Our results suggest that the upper limb’s transport is dominantly supplied by waters with Indian Ocean origin, but the contribution of waters with Pacific origin is substantially larger than previously estimated with coarse-resolution models. Yet, a large part of upper limb waters obtains thermohaline properties within the South Atlantic.
We revisit the sources for the upper limb of the overturning circulation in the South Atlantic...
