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ocean circulation

Divers off the coast of Sardinia measure the depth of Roman remains
Posted inScience Updates

Climate Change and Sea Level Rise in the Mediterranean

by G. Sannino 7 January 20196 February 2023

1st National Workshop on Climate Change and Sea Level Rise in the Mediterranean; Rome, Italy, 5–6 July 2018

A rock sequence formed by deep-sea turbidity currents
Posted inResearch Spotlights

How Do Turbidity Currents Accelerate?

by Terri Cook 7 January 201921 July 2022

Flume experiments show that a self-reinforcing cycle can strengthen the currents responsible for transporting large amounts of sediment to the deep oceans.

Posted inEditors' Highlights

Radionuclide Data from GEOTRACES Improve Particle Flux Estimates

by K. Matsumoto 7 January 201927 September 2022

New measurements of multiple radionuclides in the Atlantic Ocean offer a robust constraint on the sinking flux of particles and associated vertical fluxes of biogeochemically important elements.

Posted inEditors' Highlights

A Comprehensive Estimate on the Entropy Budget in the Ocean

by Lei Zhou 21 December 201828 February 2023

An analysis of the energy budget in the ocean estimates the Carnot work to be 110 terawatts and the ocean’s Carnot efficiency to be 0.86%.

Domitilo Nájera Navarrete stands ready to deploy an acoustically-tracked RAFOS float in the Gulf of Mexico.
Posted inScience Updates

Deep Floats Reveal Complex Ocean Circulation Patterns

by A. L. Ramsey, H. H. Furey and A. S. Bower 5 November 201826 October 2022

Acoustically tracked floats drift far below the ocean’s surface, providing fresh discoveries about deep-sea currents. A new archive gathers decades’ worth of float data into a central repository.

Posted inEditors' Highlights

Dispersal of River Water by Ocean Eddies and Shallow Ekman Flow

by Lei Zhou 28 September 201826 October 2022

Low-salinity water from the Ganga-Brahmaputra river is transported by mesoscale eddies in the Bay of Bengal, but when the monsoon winds strengthen, a shallow “Ekman” flow dominates dispersal of water.

Posted inEditors' Vox

Coastal Ocean Warming Adds to CO2 Burden

by P. Brewer 29 May 20185 January 2023

With coastal oceans around the world changing from the effects of urbanization, rising carbon dioxide levels, and climate warming, recent work begins to find new land-sea linkages.

Researchers combine estimates of sea surface height and circulation patterns in the Southern Ocean to see the bigger picture.
Posted inResearch Spotlights

A Complete Picture of Southern Ocean Surface Circulation

Kate Wheeling, freelance science writer by Kate Wheeling 30 April 20188 June 2022

For the first time, researchers combine estimates of sea surface height and circulation patterns in both ice-covered and ice-free regions of the Southern Ocean.

Ubsunur Hollow Biosphere Reserve, one of the last remnants of the mammoth steppe.
Posted inScience Updates

Ocean Circulation, Carbon Cycling During the Last Deglaciation

by S. Azharuddin 1 December 20178 June 2022

Past Global Changes (PAGES) OC3 Working Group second workshop on Ocean Circulation and Carbon Cycling during Last Deglaciation: Regional Synthesis of Carbon Isotopes Data; Corvallis, Oregon, 27–29 June 2017

New research seeks to uncover the primary mechanism behind the Atlantic Multidecadal Oscillation
Posted inResearch Spotlights

Ocean Dynamics May Drive North Atlantic Temperature Anomalies

Sarah Stanley, Science Writer by Sarah Stanley 9 October 20173 February 2023

A new analysis of sea surface temperature and salinity over several decades seeks to settle the debate on which of two mechanisms underlies the Atlantic Multidecadal Oscillation.

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Features from AGU Journals

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Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
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“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
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“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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