Subsurface measurements of nitrogen and oxygen isotope ratios in nitrate reveal a predominantly southern hemisphere supply of nitrate to the equatorial Pacific.
Biogeochemical cycles, processes, and modeling
Posted inResearch Spotlights
Shedding Light on the Southern Ocean Carbon Sink
One of the world’s largest carbon sinks is still poorly understood.
Posted inResearch Spotlights
New Baseline for Understanding Arctic Oxygen and Nutrient Fluxes
Significant spatial and temporal patterns emerge from the first pan-Arctic comparison of oxygen demand in marine sediments.
Posted inScience Updates
Optical Sensors Can Shed Light on Particle Dynamics in the Ocean
First TOMCAT Workshop; Southampton, UK, 12–14 September 2016
Posted inResearch Spotlights
Tiny Creatures Form Massive, Bright Ring Around Antarctica
Dense algae populations in the Great Calcite Belt could cause carbon dioxide release from the ocean into the atmosphere.
Posted inScience Updates
Bringing Biogeochemistry into the Argo Age
Plans are underway to integrate and augment a collection of regional programs to form a global biogeochemical monitoring network.
Posted inResearch Spotlights
A New Mechanism for Nitrogen Cycling in the Southern Ocean
A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn.
Posted inResearch Spotlights
Uncertainty Evaluations Improve Biogeochemical Simulations
Results from the first decade-long reanalysis simulation of northwest European shelf biogeochemistry show the importance of quantifying the uncertainty in these indicators to inform marine policy.
Posted inResearch Spotlights
Humans Greatly Increase Mercury Levels in the Ocean
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
A new model makes a direct estimate of contaminants in submarine groundwater discharge.