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Nutrients and nutrient cycling

Photo of ocean corals
Posted inNews

How Machine Learning Redraws the Map of Ocean Ecosystems

by Jenessa Duncombe 2 June 202022 November 2021

Using an unsupervised learning algorithm, scientists can create new maps of ecosystem provinces in the ocean, opening the possibility of sharper data collection and monitoring.

Dark water and lighter-colored wave bubbles
Posted inNews

Shedding New Light on the Nitrogen Cycle in the Dark Ocean

by Jon Kelvey 6 May 202028 September 2021

Researchers find that the key players in nitrification may already be known.

Phytoplankton under a scanning electron microscope
Posted inNews

Artificial Intelligence Can Spot Plankton from Space

by Jenessa Duncombe 6 September 20196 September 2019

Training an algorithm with satellite images of ocean color reveals the blooms and busts of phytoplankton communities.

Color map of sea surface temperatures in the northwest Pacific
Posted inEditors' Vox

The Kuroshio Current: Artery of Life

by T. Nagai 27 August 2019

The waters of the Kuroshio Current in the northwestern Pacific Ocean transport heat, salt, and organic and inorganic matter from south to north, shaping the ocean ecosystem.

An instrument with many sampling tubes is pulled out of the ocean at Station ALOHA. The samples will be analyzed for nutrient content, microbial diversity, and metabolic activity.
Posted inNews

Far-Flung Dust Storms Deliver Nutrient Boosts to North Pacific

by Mary Caperton Morton 22 July 2019

Barren marine deserts bloom seasonally with iron infusions from Asian dust storms.

Posted inEditors' Highlights

Unraveling Hemispheric Ocean Nitrate Supply Pathways

by S. B. Moran 10 April 201810 April 2018

Subsurface measurements of nitrogen and oxygen isotope ratios in nitrate reveal a predominantly southern hemisphere supply of nitrate to the equatorial Pacific.

Crew members prepare to launch a biogeochemical profiling float in the Pacific sector of the Southern Ocean.
Posted inScience Updates

Bringing Biogeochemistry into the Argo Age

by K. S. Johnson and H. Claustre 8 November 20163 February 2022

Plans are underway to integrate and augment a collection of regional programs to form a global biogeochemical monitoring network.

Phytoplankton blooms help to cycle nitrate in the Southern Ocean.
Posted inResearch Spotlights

A New Mechanism for Nitrogen Cycling in the Southern Ocean

by Sarah Stanley 29 July 201629 July 2016

A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn.

Posted inResearch Spotlights

Drifting Floats Reveal Nitrate Patterns in Mediterranean Sea

by Kate Wheeling 30 March 201630 March 2016

Next-generation autonomous platforms allow scientists to understand physical mechanisms that control nitrate availability in the Mediterranean surface water.

From AGU Journals

MOST SHARED
Reviews of Geophysics
“Global and Regional Trends and Drivers of Fire Under Climate Change”
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HIGHLY CITED
Global Biogeochemical Cycles
“Emission of trace gases and aerosols from biomass burning”
By M. O. Andreae, P. Merlet

HOT ARTICLE
Geophysical Research Letters
“Relating Slip Behavior to Off-Fault Deformation Using Physical Models”
By Emily O. Ross et al.


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