The overall objective of NAOS is to consolidate and improve the French contribution to the international Argo observing system and to prepare the next scientific challenges for in-situ monitoring of the world ocean. NAOS is going to develop, validate and deploy the next generation of biogeochemical profiling floats in three pilot areas (Mediterranean, Arctic and North Atlantic).
NAOS is consolidating the French contribution to the Argo core mission (global temperature and salinity measurements down to 2000 m) and is contributing to the main evolutions foreseen for the next decade for Argo, in particular for biogeochemical observations. In the Mediterranean, NAOS is developing a pilot experiment for a regional array of biogeochemical floats (about 30 floats deployed since 2012). It is also developing a biogeochemical Argo component in the Arctic ocean as an obvious extension of the core Argo mission. Deep and O2 equipped floats are also deployed in the North Atlantic to characterize physical and biogeochemical dynamic.