Robots probe ocean depths in mission to fine-tune hurricane forecasts

The robotic, unmanned gliders are equipped with sensors to measure the salt content (salinity) and temperature as they move through the ocean at different depths. The gliders, which can operate in hurricane conditions, collect data during dives down to a half mile below the sea surface, and transmit the data to satellites when they surface.

NOAA scientists are launching the underwater vehicles from ships off the coast of Puerto Rico; more gliders will be deployed later in the summer in other parts of the Atlantic.