11. Acknowledgement

The coordination of producing this document was supported by the European Commission via the project under H2020 funding (Grant agreement 862626) and GROOM || Horizon 2020 research and innovation programme (Grant agreement No 951842).

Robert Todd is funded by the NOAA Global Ocean Monitoring and Observing (GOMO) Program, the US Office of Naval Research, and the US National Science Foundation.

This work also contributes to the Mediterranean Ocean Observing System for the Environment (MOOSE), which is funded by the CNRS-INSU and the French Ministry for Education and Research (ILICO Research Infrastructure).