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Oceans

Swirls of photosynthetic algae thrive in the Arabian Sea in February 2015.
Posted inResearch Spotlights

Anaerobic Activity Is a Big Contributor in Marine “Dead Zones”

Sarah Stanley, Science Writer by Sarah Stanley 17 January 20202 March 2023

Climate models that do not account for anaerobic microbial activity may underestimate future expansion of oxygen-depleted waters.

The remotely operated vehicle Hercules
Posted inResearch Spotlights

Investigating Rates of Microbial Methane Munching in the Ocean

Sarah Stanley, Science Writer by Sarah Stanley 16 January 202018 May 2022

Analyses of microbial activity in seawater samples help clarify the fate of methane released from the seafloor.

Oil slick from Deepwater Horizon spill, 2010
Posted inEditors' Vox

Understanding Material Movement in the Ocean’s Upper Layer

by M. Chamecki, T. Chor, D. Yang and C. Meneveau 13 January 202018 May 2022

Computer simulations are advancing our understanding of how natural and anthropogenic materials are transported around the upper layer of the ocean.

Visualization showing differences between the Lagrangian specification and the Eulerian specification
Posted inEditors' Highlights

Different Eddy Transport for “Lazy” and “Athletic” Observers

by Lei Zhou 2 January 202012 January 2022

Two specifications of fluid dynamics—taking measurements at a fixed point and following a fluid parcel—are compared for quantifying eddy transport in the ocean.

The drillship Vidar Viking sits amid Arctic sea ice during the International Ocean Discovery Program’s Arctic Coring Expedition in 2004.
Posted inResearch Spotlights

Reconstructing 150 Million Years of Arctic Ocean Climate

by David Shultz 18 December 201926 January 2023

A new summary of past Arctic climate conditions gives insight into anthropogenic influences on today’s climate and on the need for future drilling studies to further improve our understanding of the past.

A sea otter in the water with bull kelp
Posted inNews

Will Melting Sea Ice Expose Marine Animals to New Diseases?

Rachel Crowell, Science Writer by Rachel Crowell 16 December 20199 September 2024

Marine mammals previously separated by Arctic ice may have more opportunities to interact as water routes redefine habitats and species ranges.

Aerial photo of waves lapping at a beach with people near the shore
Posted inNews

Ocean Science Decade Calls Attention to a Wave of Concerns

by Randy Showstack 11 December 201914 January 2022

The United Nations Decade of Ocean Science for Sustainable Development is a wake-up call and a motivation to manage the ocean sustainably.

Bathymetric map of the world’s oceans with continents blacked out
Posted inNews

Momentum Grows for Mapping the Seafloor

by Randy Showstack 9 December 201921 February 2023

Initiatives like the Nippon Foundation-GEBCO Seabed 2030 Project can help us better understand the ocean.

Close-up view of Sargassum natans, a seaweed commonly found in the Gulf of Mexico
Posted inResearch Spotlights

Sunlight Stimulates Brown Algae to Release Organic Carbon

Sarah Stanley, Science Writer by Sarah Stanley 2 December 20194 January 2024

Sargassum and other brown algae might be an underappreciated contributor of organic compounds called polyphenols to the open ocean.

A true-color satellite image of the Gulf of Mexico on 17 July 2019
Posted inScience Updates

Filling the Gaps in Ocean Maps

by X. Liu and M. Wang 21 November 20199 February 2022

A new software application merges ocean color data from instruments aboard two satellites to provide gap-free, near-real-time monitoring of the global ocean environment.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

How Water Flows Toward Cities During Hurricanes

30 July 202630 July 2026
Editors' Highlights

A New Pathway for Energy Redistribution in Near-Earth Space

30 July 202629 July 2026
Editors' Vox

The Hidden Costs of Mining River Sand

27 July 202627 July 2026
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