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Chemical tracers

Microbes live in hydrothermal systems like this one on the East Pacific Rise.
Posted inResearch Spotlights

Hydrothermal Vents May Add Ancient Carbon to Ocean Waters

by Sarah Stanley 7 July 202128 September 2021

Data from a long-distance research cruise provide new insights into carbon cycling in the eastern Pacific and Southern Oceans.

Figure showing first transect of radiocarbon in DOC with depth below the ocean surface in the Pacific Ocean, as a function of latitude
Posted inEditors' Highlights

Pacific Carbon Ages During Long Journey Along Ocean Floor

by Rose Cory 4 June 201930 May 2019

The radiocarbon signal of DOC with depth across the Pacific Ocean basin effectively supports a number of important theories that have been suggested over the years.

Satellite image of a collapsed storm over atolls
Posted inResearch Spotlights

Pacific Carbon Uptake Accelerating Faster Than Expected

by E. Underwood 29 May 2019

A new study suggests that shifting ocean currents drive faster carbon dioxide uptake.

Researchers try to better model the role of Arctic plants on nitrogen uptake.
Posted inResearch Spotlights

Tracking Nitrogen in Arctic Plants

by Elizabeth Thompson 20 June 2017

Prevailing nutrient uptake models do not fit Arctic plants. Scientists test a new option that overcomes older models’ shortcomings.

Wedell Sea ice source of Antarctic bottom water
Posted inResearch Spotlights

How Do the Deep Waters of the Antarctic Form?

by W. Yan 12 July 2016

Researchers uncover new insights into the life cycle of water in the Antarctic region by measuring noble gas concentrations.

Posted inResearch Spotlights

Tracking Radioactive Cesium Released During Fukushima Disaster

by David Shultz 23 February 201623 February 2016

Scientists probe the Pacific to determine how far the damage from one of the largest nuclear meltdowns in history extends.

Posted inResearch Spotlights

Humans Greatly Increase Mercury Levels in the Ocean

by S. Palus 22 April 201522 April 2015

A study of the natural cycle of mercury reveals that humans are to blame for a five- to sixfold increase in the oceanic concentrations of the potentially toxic element.

Posted inResearch Spotlights

Aquifers Spew More Pollution into Oceans Than Rivers

by N. Akpan 31 March 201531 March 2015

A new model makes a direct estimate of contaminants in submarine groundwater discharge.

From AGU Journals

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“Slip Characteristics of Induced Earthquakes: Insights From the 2015 M w 4.0 Guthrie, Oklahoma Earthquake”
By Colin N. Pennington et al.


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