CES "Dissolved oxygen"

The Dissolved Oxygen Scientific Expertise Consortium (CES) was set up at the beginning of 2019 in order to network and federate scientific stakeholders at national and even international level around the theme of Deoxygenation of the offshore and coastal ocean and to establish an exhaustive and qualified database of national data on dissolved oxygen in the ocean. It is led by Véronique Garçon (LEGOS, CNRS), Joël Sudre (LEGOS, CNRS) and Sabine Schmidt (EPOC, CNRS), see their contacts in the tab below.

Oxygen is essential to the health of the planet. It affects the cycles of carbon, nitrogen and other key elements, and is a fundamental requirement for aquatic life. Nevertheless, deoxygenation is worsening in the coastal and open ocean (more information on dissolved oxygen).

In the long term, this synthetic product should include all Eulerian and Lagrangian observations, i.e. Winkler titration measurements, oxygen sensor data implanted on CTDs and on fixed anchorages/bottom observations/time series, oxygen sensors on BGC-ARGO profilers, on gliders and wavegliders or on any other type of autonomous vehicle/platform. One possible strategy would be to focus first on Eulerian data, then to work on Lagrangian data. The philosophy is to be inspired by the SOCAT approach, a community-based initiative developed and maintained by data providers and users.