Argo float (ocean observing system)

An Argo float is an autonomous underwater device used to monitor the ocean’s health. It drifts with currents and periodically descends to gather data on temperature, salinity, and other properties at various depths. After collecting this information, it surfaces to transmit the data via satellite to scientists worldwide. Argo floats provide vital, real-time insights into ocean conditions, helping study climate change, monitor marine ecosystems, and improve weather forecasts. They are part of a global network designed to create a comprehensive, ongoing picture of the ocean's physical state, playing a crucial role in understanding Earth's climate system.