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ocean circulation

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 20207 March 2023

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.

Charts showing ENSO cycles
Posted inEditors' Highlights

Oceanic Mixing Influences Development of ENSO Cycle

by J. Sprintall 7 February 202016 September 2022

Changes in oceanic turbulence act to regulate the sea surface temperature during the evolution of the El Niño Southern Oscillation cycle.

Illustration of a boat sailing across a black background with colorful plankton in its wake
Posted inNews

Plankton Biodiversity Mapped Globally

by Kimberly M. S. Cartier 14 November 20194 January 2023

A team of scientists sailed around the world to catalog the diversity of plankton species in the ocean. Their findings have important economic implications as climate warms.

Diagrams of modeled plastic particle concentrations in the ocean after 10 simulated years, starting from an initial uniform distribution over the entire globe
Posted inResearch Spotlights

How Are Microplastics Transported to Polar Regions?

by Terri Cook 26 September 201916 September 2022

New modeling indicates that global subsurface ocean currents distribute submerged microplastics along very different routes than those traveled by floating plastic debris.

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 20198 June 2022

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

by Sarah Stanley 4 September 20198 June 2022

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

Researchers aboard a ship prepare to deploy an instrument to collect organic carbon in the ocean.
Posted inResearch Spotlights

Revealing the Ocean’s Rare but Prolific Carbon Export Events

by Sarah Stanley 3 September 201927 September 2022

New findings suggest that rare events underlie a global inverse relationship between primary production of organic carbon in the upper ocean and the fraction that is exported to the deep sea.

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 20198 June 2022

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

An international team studying the Beaufort Gyre from their base on the CCGS Louis S. St-Laurent.
Posted inEditors' Vox

In a Spin: New Insights into the Beaufort Gyre

by A. Proshutinsky and R. Krishfield 8 April 20199 August 2022

A new special collection in JGR: Oceans presents results from studies of the Beaufort Gyre, an oceanic circulation system in the Arctic that has far-reaching influence on the global climate.

The North Atlantic
Posted inNews

North Atlantic Circulation Patterns Reveal Seas of Change

by Mary Caperton Morton 2 April 20197 March 2023

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

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