TRICUSO aims to enhance understanding of ocean carbon uptake by advancing monitoring technologies, supporting citizen science, integrating biological data, improving data flows for scientists, evaluating observation density, and proposing governance structures.

The Euro-Argo, EMBRC and ICOS European Research Infrastructures gather to prototype a CO2 flux observatory in the Southern Ocean. This observatory will be based on a multi-platform approach: boats, including racing yachts; Argo profiling floats; autonomous surface vehicles. In TRICUSO, LOV will be responsible for contributing to a better estimation of air-sea CO2 fluxes, notably from BGC-Argo floats measuring oxygen and on which meteorological measurements (wind and rain) by passive acoustics (technology currently being developed in the GEORGES project) will be progressively implemented. LOV will be involved in a number of activities, including deployment and testing at sea; setting up a chain for processing and making available meteorological data; validation of wind measurements; analysis of the impact of “real” wind measurements compared with satellite products on the uncertainty of CO2 flux estimates.