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Oceans

Posted inEditors' Highlights

Respiration Quotient Variability and Ocean Oxygen Levels

by Eileen Hofmann 1 November 20221 November 2022

Respiration quotients in the Atlantic and Pacific Oceans reflect different water temperature, nutrient stress and phytoplankton community structure, important for regional carbon and oxygen cycling.

A bolt of lightning flashes across a night sky.
Posted inNews

Salt Spray May Stifle Lightning over the Sea

by Carolyn Wilke 1 November 20224 November 2022

New research suggests that sea-salt aerosols seed large raindrops that starve clouds of water needed to make lightning. But not all scientists are convinced it’s simply about salt spray.

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

Sarah Derouin, Science Writer 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.

Satellite view of an ice shelf and sea ice
Posted inResearch Spotlights

A Close Look at Melting Below Antarctica’s Largest Ice Shelf

Rachel Fritts, Science Writer by Rachel Fritts 28 October 202228 October 2022

Radar data reveal where, when, and how fast the base of the Filchner-Ronne Ice Shelf has been losing mass in recent years.

People sit on the prow of a boat around the paper on the deck.
Posted inNews

An Inclusive Approach to Oceangoing Research

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 27 October 202227 October 2022

The bread and butter of oceanography, sea voyages rarely include minoritized communities and nonscientists. The Inclusion Mission wants to change that.

Two maps showing locations of seismic arrays.
Posted inEditors' Highlights

Can Anelastic Attenuation of Oceanic Mantle be Reliably Measured?

by Fan-Chi Lin 26 October 20224 August 2023

A new study demonstrates that robust anelastic attenuation measurements can be made across ocean bottom seismic arrays at different locations using surface wave array analysis.

Drone footage of a blue whale surfacing to breathe off the coast of California.
Posted inNews

Scientists Tune In to Blue Whale Feeding Rhythms

by Bill Morris 26 October 20226 December 2022

New acoustic sensing technology is allowing scientists to track blue whale movements in real time, a breakthrough that could help save whales’ lives.

World map
Posted inEditors' Highlights

Machine Learning Looks Anew at Isotope Ratios in Oceanic Basalts

by Paul Asimow 25 October 202224 October 2022

While past attempts to define isotopic endmembers and assign them a geodynamic significance ended in controversy, a machine-learning clustering algorithm offers a solution to this classical problem.

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

Aaron Sidder, freelance science writer by Aaron Sidder 17 October 202215 March 2023

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

Graphs and diagrams from the paper showing a merger event of eddies Bob and Tom in fall 2009.
Posted inEditors' Highlights

How do Bob and Tom Eddies Meet, Pair-Spin, and Twist?

by Takeyoshi Nagai 14 October 202212 October 2022

Autonomous float data reveal that mergers of two eddies, known to have spiraling subducting water surrounding each other, happens more frequently than previously thought.

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