Slowing of the Atlantic meridional overturning circulation at 25° N

@article{Bryden2005SlowingOT,
  title={Slowing of the Atlantic meridional overturning circulation at 25° N},
  author={Harry L. Bryden and Hannah R. Longworth and Stuart A. Cunningham},
  journal={Nature},
  year={2005},
  volume={438},
  pages={655-657}
}
The Atlantic meridional overturning circulation carries warm upper waters into far-northern latitudes and returns cold deep waters southward across the Equator. Its heat transport makes a substantial contribution to the moderate climate of maritime and continental Europe, and any slowdown in the overturning circulation would have profound implications for climate change. A transatlantic section along latitude 25° N has been used as a baseline for estimating the overturning circulation and… Expand

Figures and Tables from this paper

Oceanography: The Atlantic heat conveyor slows
TLDR
Computer simulations predict that global warming will weaken the ocean circulation that transports heat from the tropics to higher latitudes in the North Atlantic, and this latest finding will add fuel to the debate on climate change. Expand
Meridional coherence of the North Atlantic meridional overturning circulation
The North Atlantic Meridional Overturning Circulation (MOC) is associated with deep water formation at high latitudes, and climatically-important ocean-atmosphere heat fluxes, hence the currentExpand
Atlantic Heat Conveyor (Atlantic Meridional Overturning Circulation)
The meridional overturning circulation (MOC) is part of a global ocean circulation that redistributes heat from Equatorial to Polar regions. In the Atlantic the MOC carries heat northward (theExpand
Overturning in the North Atlantic.
  • M. Lozier
  • Environmental Science, Medicine
  • Annual review of marine science
  • 2012
TLDR
The observational basis for linking water mass formation with the ocean's meridional overturning is reviewed and is crucial to efforts aimed at predicting the consequences of the warming and freshening of high-latitude surface waters to the climate system. Expand
Seawater density variations in the North Atlantic and the Atlantic meridional overturning circulation
Seawater property changes in the North Atlantic Ocean affect the Atlantic meridional overturning circulation (AMOC), which transports warm water northward from the upper ocean and contributes to theExpand
Atlantic Meridional Overturning Circulation: Observed Transport and Variability
The Atlantic Meridional Overturning Circulation (AMOC) extends from the Southern Ocean to the northern North Atlantic, transporting heat northwards throughout the South and North Atlantic, andExpand
On the variability of the deep meridional transports in the tropical North Atlantic
A 5-year-long time series of meridional transport below 1180 dbar—zonally integrated across a section spanning, the western basin of the tropical North Atlantic—is analyzed. It has been inferred fromExpand
Atlantic meridional heat transports in two ocean reanalyses evaluated against the RAPID array
[1] The Atlantic meridional overturning circulation in two versions of the NEMO 14° global ocean model has been compared with the RAPID transport array at 26°N. Both model versions reproduce the meanExpand
Upper ocean manifestations of a reducing meridional overturning circulation
[1] Most climate models predict a slowing down of the Atlantic Meridional Overturning Circulation during the 21st century. Using a 100 year climate change integration of a high resolution coupledExpand
The Atlantic Meridional Overturning Circulation in High‐Resolution Models
The Atlantic meridional overturning circulation (AMOC) represents the zonally integrated stream function of meridional volume transport in the Atlantic Basin. The AMOC plays an important role inExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 31 REFERENCES
Meridional transport and heat flux variations in the subtropical North Atlantic
Three sets of hydrographic data from October 1957, August 1981, and July-August 1992 are used to examine the variations in meridional circulation and ocean heat transport at 24.5°N in the subtropicalExpand
Rising temperatures in the subtropical North Atlantic Ocean over the past 35 years
As an oceanographic contribution to the quincentennial celebra-tions of Columbus's voyage of discovery in 1492, a collaborative expedition was carried out in July-August 1992 to make aExpand
Rapid freshening of the deep North Atlantic Ocean over the past four decades
TLDR
It is shown, through the analysis of long hydrographic records, that the system of overflow and entrainment that ventilates the deep Atlantic has steadily changed over the past four decades, and this changes have already led to sustained and widespread freshening of the deep ocean. Expand
Two transatlantic sections: meridional circulation and heat flux in the subtropical North Atlantic Ocean
Abstract Transatlantic hydrographic sections were obtained in mid-1981 along latitudes 24.5° and 36.25°N. The tracks nearly duplicated sections made 23 years earlier as part of the InternationalExpand
Global Climatic Impacts of a Collapse of the Atlantic Thermohaline Circulation
Part of the uncertainty in predictions by climate models results fromlimited knowledge of the stability of the thermohaline circulation ofthe ocean. Here we provide estimates of the response ofExpand
Deep western boundary current east of Abaco: mean structure and transport
To assess whether the southward deep water flow of the Atlantic meridional overturning circulation can be monitored by measuring the deep western boundary current, the structure and transport of theExpand
Decline of Subpolar North Atlantic Circulation During the 1990s
TLDR
Analysis of the local surface forcing suggests that the 1990s buoyancy forcing has a dynamic effect consistent with altimetric and hydrographic observations: A weak thermohaline forcing allows the decay of the domed structure of subpolar isopycnals and weakening of circulation. Expand
Atlantic Ocean baroclinic heat flux at 24 to 26° N
The spatially varying, interior geostrophic baroclinic heat flux component of the total meridional oceanic heat flux near 24°N in the Atlantic Ocean is examined using four transatlantic hydrographicExpand
The Abyss of the Nordic Seas Is Warming
Abstract Over the past decade, the multiyear oceanographic time series from ocean weather station Mike at 66°N, 2°E indicate a warming by about 0.01°C yr−1 in the deep water of the Norwegian Sea. TheExpand
Decreasing overflow from the Nordic seas into the Atlantic Ocean through the Faroe Bank channel since 1950
TLDR
It is shown, using direct measurements and historical hydrographic data, that the volume flux of the Faroe Bank channel overflow has decreased and implies a weakened global thermohaline circulation and reduced inflow of Atlantic water to the Nordic seas. Expand
...
1
2
3
4
...