Massive Network of Robotic Ocean Probes Gets Smart Upgrade

The Southern Ocean guards its secrets well. Strong winds and punishing waves have kept all except the hardiest sailors at bay. But a new generation of robotic explorers is helping scientists to document the region’s influence on the global climate. These devices are leading a technological wave that could soon give researchers unprecedented access to oceans worldwide.

Oceanographers are already using data from the more than 3,900 floats in the international Argo array. These automated probes periodically dive to depths of 2,000 metres, measuring temperature and salinity before resurfacing to transmit their observations to a satellite (see ‘Diving deeper’). The US$21-million Southern Ocean Carbon and Climate Observations and Modeling Project (SOCCOM) is going a step further, deploying around 200 advanced probes to monitor several indicators of seawater chemistry and biological activity in the waters around Antarctica. A primary aim is to track the prodigious amount of carbon dioxide that flows into the Southern Ocean.

Read the full article at Scientific American