The Ocean Takes a Deep Breath

  title={The Ocean Takes a Deep Breath},
  author={Arne K{\"o}rtzinger and Jens Schimanski and Uwe Send and Douglas Wallace},
  pages={1337 - 1337}
Deep convection is the major mechanism for replenishing oxygen in the deep interior of the world ocean, and its variability affects the use of atmospheric oxygen to monitor the global carbon cycle. Sensors mounted on autonomous floats allow this episodic breathing of the ocean to be monitored in near real time. The results suggest that the tools are available now to make oxygen a key parameter in marine global change research. 
Rapid transfer of oxygen to the deep ocean mediated by bubbles
The concentration of oxygen exerts major controls on life in the ocean, and its distribution in the ocean and atmosphere carries information about biological productivity, transports of mass and
Irminger Sea deep convection injects oxygen and anthropogenic carbon to the ocean interior
These observations provide unequivocal evidence that ocean ventilation and anthropogenic carbon uptake take place in the Irminger Sea and that their efficiency can be directly linked to atmospheric forcing.
Ocean deoxygenation in a warming world.
The potential for larger O2 declines in the future suggests the need for an improved observing system for tracking ocean 02 changes, and an important consequence may be an expansion in the area and volume of so-called oxygen minimum zones.
Physical Mechanisms Driving Oxygen Subduction in the Global Ocean
Future changes in subduction are suspected to be critical for the ocean deoxygenation predicted by climate models over the 21st century. However, the drivers of global oxygen subduction have not been
Net production of oxygen in the subtropical ocean
It is found that mixing events during early winter homogenize the upper water column and cause low oxygen concentrations, which is consistent with an ecosystem that is a net producer of fixed carbon (net autotrophic) throughout the year, with episodic events not required to sustain positive oxygen production.
Oceanic Uptake of Oxygen During Deep Convection Events Through Diffusive and Bubble‐Mediated Gas Exchange
The concentration of dissolved oxygen (O2) plays fundamental roles in diverse chemical and biological processes throughout the oceans. The balance between the physical supply and the biological
Oxygen Saturation Surrounding Deep Water Formation Events in the Labrador Sea From Argo‐O2 Data
Deep water formation supplies oxygen‐rich water to the deep sea, spreading throughout the ocean by means of the global thermohaline circulation. Models suggest that dissolved gases in newly formed
The Three Rs: Resolving Respiration Robotically in Shelf Seas
Ocean deoxygenation threatens ocean productivity, carbon cycling and marine ecosystems. Shelf seas are highly dynamic regions, which contributes to their high productivity and also makes monitoring
Decomposing the Oxygen Signal in the Ocean Interior: Beyond Decomposing Organic Matter
In the subsurface ocean, O2 depleted because of organic matter remineralization is generally estimated based on apparent oxygen utilization (AOU). However, AOU is an imperfect measure of oxygen
Dissolved oxygen as a tracer for intermediate water mixing characteristics in the Indian Ocean
The mixing characteristics of intermediate water at the Central Indian Ocean Basin (CIOB) and the Arabian Sea using dissolved oxygen (DO) as a tracer were studied. Only a few datasets are available


Interannual variability of the air‐sea flux of oxygen in the North Atlantic
In studies using timeseries observations of atmospheric O2/N2 to infer the fate of fossil fuel CO2, it has been assumed that multi‐year trends in observed O2/N2 are insensitive to interannual
The change in oceanic O2 inventory associated with recent global warming
  • R. Keeling, H. Garcia
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2002
An independent argument is presented here in support of this prediction based on observational evidence of the ocean's biogeochemical response to natural warming, indicating that most of the O2 exchange is biologically mediated through links between heating and stratification.
Global and hemispheric CO2 sinks deduced from changes in atmospheric O2 concentration
THE global budget for sources and sinks of anthropogenic CO2 has been found to be out of balance unless the oceanic sink is supplemented by an additional 'missing sink', plausibly associated with