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AMOC

Image of the North Atlantic Ocean
Posted inResearch Spotlights

Nonlinear Effects of Wind on Atlantic Ocean Circulation

by Jack Lee 11 January 20222 July 2024

Simulations reveal the influence of reduced and enhanced wind stress on the Atlantic Meridional Overturning Circulation.

Gyldenlove Glacier discharges into a fjord in southern Greenland.
Posted inNews

“Sticky” Ice Sheets May Have Led to More Intense Glacial Cycles

by Clara Chaisson 5 January 20222 July 2024

New research attributes a shift to longer, stronger glacial cycles to increased friction between ice sheets and bedrock in the Northern Hemisphere 1 million years ago.

A picture of rainfall in a tropical rainforest.
Posted inEditors' Vox

Understanding Abrupt Climate Change in the Late Quaternary

by Raymond S. Bradley and Henry F. Diaz 18 November 20212 July 2024

During the late Quaternary period, a series of abrupt climate changes in the tropics and sub-tropics driven by changes in ocean circulation were both dramatic and disruptive.

An iceberg floats off of Baffin Island in the North Atlantic Ocean.
Posted inResearch Spotlights

A 50,000-Year History of Current Flow Yields New Climate Clues

Sarah Stanley, Science Writer by Sarah Stanley 6 May 20212 July 2024

The first high-resolution historical record of Europe’s Glacial Eastern Boundary Current sheds new light on ocean circulation, ice sheet dynamics, and climate change.

A mooring deployed as part of the Overturning in the Subpolar North Atlantic Program surfaces near the coast of Greenland.
Posted inResearch Spotlights

Larger Role for Shallow Intermediate Waters in Ocean Circulation

by S. E. Pratt 24 March 20202 July 2024

Water masses formed off southeastern Greenland may contribute more than previously thought to the variability of the Atlantic Meridional Overturning Circulation, which strongly influences global climate.

Photomicrographs showing typical subpolar (left) and polar (right) foraminiferal assemblages
Posted inResearch Spotlights

Atlantic Circulation Consistently Tied to Carbon Dioxide

by David Shultz 25 September 20192 July 2024

Past ocean surface conditions suggest that over the past 800,000 years, atmospheric carbon dioxide levels typically rose on millennial timescales when Atlantic overturning was weaker and vice versa.

A stretch of the North Atlantic Ocean with the snow-covered shoreline of western Iceland in the background
Posted inResearch Spotlights

Theoretical Models Advance Knowledge of Ocean Circulation

Sarah Stanley, Science Writer by Sarah Stanley 4 September 20192 July 2024

A review of recent advancements highlights key insights into the Atlantic Meridional Overturning Circulation and what might be in store for future research.

Map showing pattern of Atlantic meridional overturning circulation
Posted inEditors' Vox

Effects of Variability in Atlantic Ocean Circulation

by R. Zhang, R. Sutton, G. Danabasoglu, Y.-O. Kwon, R. Marsh, S. G. Yeager, D. E. Amrhein and C. M. Little 9 July 20192 July 2024

There is strong evidence that the Atlantic meridional overturning circulation plays an essential role in Atlantic multidecadal variability and associated climate impacts.

Satellite image of the East Coast of North America
Posted inResearch Spotlights

Demystifying Sea Level Changes Along the New England Coast

by Terri Cook 18 June 20192 July 2024

No direct causal connection exists between coastal sea level changes and the strength of the North Atlantic’s overturning circulation, according to new, longer-term observational records.

The North Atlantic
Posted inNews

North Atlantic Circulation Patterns Reveal Seas of Change

Mary Caperton Morton, Science Writer by Mary Caperton Morton 2 April 20192 July 2024

New evidence suggests the eastern Atlantic may be the site of major overturning.

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