BGC-Argo float technology is revolutionizing our way to observe the global ocean at unprecedented space and time resolutions. Beside temperature and salinity, BGC-Argo floats are presently designed to acquire six environmental and biogeochemical properties whose measurement are essential in the context of an ocean under increasing pressure and changes. Among these properties, pH has only recently become accessible to float's measurement thanks to the now availability of a reliable and dedicated sensor.
A profiling float is a robot which, using the Archimedes principle, explores the ocean between surface and 2Km depth and records key oceanic measurements thanks to the miniature high-tech sensors it carries. In particular, the floats prepared as part of BGC-Argo-pH will have a new pH sensor.
Connecting a non-scientific audience and especially young people to the ongoing research and raising awareness concerning a current and critical marine environmental change, are two challenges the team aims addressing through public outreach and education. On a national and international level, it therefore engages in developing pedagogic material, proposing hands-on activities and informing on specific occasions during the projects lifetime and beyond.
The BGC-Argo-pH project aims at progressively implementing these measurements on a fleet of robots, the so-called profiling floats operated by the BGC-Argo program.