CLS, Satellite services provider for Argo program

The Argo Project : Global Observations for Understanding and Prediction of Climate Variability

Until the first deployment of Argo floats in 2000, less than 1 percent of the ocean was being monitored routinely. Today, more than 3,000 of these aquatic robots dive and drift through the upper mile of the ocean. Argo robots have revolutionized human knowledge of the ocean—from natural variability to sea level rise

Read the article on NOAA Website

Ocean climate observation program