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ocean circulation

A view over open ocean toward a large iceberg with part of a large yellow spherical mooring float in the foreground
Posted inResearch Spotlights

When Winds and Currents Align, Ocean Mixing Goes Deep

by Sarah Derouin 31 October 202217 November 2022

Slantwise convection in the Irminger Sea off Greenland appears to mix ocean water to deeper depths than previously thought, representing an important contribution to Atlantic overturning.

Emissions rise from industrial towers along a waterfront in front of a hazy orange sunset.
Posted inResearch Spotlights

Tracing Anthropogenically Emitted Carbon Dioxide into the Ocean

by Aaron Sidder 17 October 202217 October 2022

Researchers labeled anthropogenically emitted carbon and tracked it with an ocean circulation model to determine whether it winds up in the sky or sea.

View from a research ship overlooking an expanse of fractured sea ice under a sunny sky with high clouds.
Posted inResearch Spotlights

Capturing Ocean Turbulence at the Underbelly of Sea Ice

by Sarah Stanley 20 September 202220 September 2022

A specially designed instrument enabled researchers in the Arctic to measure turbulence within 1 meter of the interface where ice meets ocean.

Iceberg in the Southern Ocean
Posted inResearch Spotlights

A New Look at Preindustrial Carbon Release from the Deep Ocean

by Sarah Stanley 18 August 202218 August 2022

New research could help inform future studies of how the release of carbon dioxide from the Southern Ocean might affect global climate change.

Israeli soldiers clean tar from the beaches in February 2021 after oil from a spill in the eastern Mediterranean washed ashore.
Posted inFeatures

Seeing Through Turbulence to Track Oil Spills in the Ocean

by Guillermo García-Sánchez, Ana M. Mancho, Antonio G. Ramos, Josep Coca and Stephen Wiggins 18 August 202225 January 2023

After oil and tar washed up on eastern Mediterranean beaches in 2021, scientists devised a way to trace the pollution back to its sources using satellite imagery and mathematics.

Graph from the paper.
Posted inEditors' Highlights

Arctic Salinity Pushes the AMOC Swing

by Kristopher B. Karnauskas 3 August 202222 December 2022

A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.

Diagrams showing the model fields used in the study.
Posted inEditors' Highlights

Landfalling Hurricanes Intensify Due to Coastal Downwelling

by Suzana Camargo 26 July 202221 September 2022

Hurricane winds can lead to coast downwelling, which brings warmer surface water near the coast and can contribute to the intensification of the landfalling hurricane.

Image of the North Atlantic Ocean
Posted inResearch Spotlights

Nonlinear Effects of Wind on Atlantic Ocean Circulation

by Jack Lee 11 January 202227 September 2022

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

Posted inEditors' Highlights

Wind Stress is not the Ceiling of Momentum Flux to the Ocean

by Lei Zhou 15 February 202116 September 2022

The ocean is mainly driven by wind stress, but simultaneous observations show that the gain of momentum flux by the ocean can be larger than the wind stress due to the influence of ocean waves.

Illustration of a coccolithophore against a blue background
Posted inResearch Spotlights

The Alkalinity Trap at the Bottom of the World

by Elizabeth Thompson 9 February 202117 August 2022

Tiny microorganisms in the Southern Ocean affect the way the rest of the world’s seas respond to carbon dioxide.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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