Autonomous floats for the ARGO program

y and therefore collect measurements of profiles of water properties. This makes them unique compared to other sustained observation systems which measure only at fixed depths (buoys or remote sensing). The program represents a fleet of about 4000 autonomous floats, deployed all over the world ocean

. They carry an array of sensors with the core being temperature, and salinity, while other sensors are often added to cover other parameters such as dissolved oxygen, phytoplankton fluorescence, or-ganic matter fluorescence, nitrate, parti