Slowing of the Atlantic meridional overturning circulation at 25° N

  title={Slowing of the Atlantic meridional overturning circulation at 25° N},
  author={Harry L. Bryden and Hannah R. Longworth and Stuart A. Cunningham},
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… 

Oceanography: The Atlantic heat conveyor slows

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.

The South Atlantic and the Atlantic Meridional Overturning Circulation

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 current

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 (the

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, and

Atlantic meridional heat transports in two ocean reanalyses evaluated against the RAPID array

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 mean

Upper ocean manifestations of a reducing meridional overturning circulation

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 coupled climate

Wind-driven and buoyancy-driven circulation in the subtropical North Atlantic Ocean

  • H. Bryden
  • Environmental Science
    Proceedings of the Royal Society A
  • 2021
Continuous observations of ocean circulation at 26°N in the subtropical Atlantic Ocean have been made since April 2004 to quantify the strength and variability in the Atlantic Meridional overturning

The present and future system for measuring the Atlantic meridional overturning circulation and heat transport

of the global combined atmosphere-ocean heat flux and so is important for the mean climate of the Atlantic sector of the Northern Hemisphere. This meridional heat flux is accomplished by both the



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 subtropical

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 a

Rapid freshening of the deep North Atlantic Ocean over the past four decades

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.

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 the

Decline of Subpolar North Atlantic Circulation During the 1990s

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.

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 hydrographic

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. The

Decreasing overflow from the Nordic seas into the Atlantic Ocean through the Faroe Bank channel since 1950

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.

The dynamics of ocean heat transport variability

The north‐south heat transport is the prime manifestation of the ocean's role in global climate, but understanding of its variability has been fragmentary owing to uncertainties in observational