Deploying the CTD from R/V Falkor
R/V Falkor deploys the CTD, short for Conductivity, Temperature and Depth. The instrument measures the conductivity in water, which is a good proxy for what the water has dissolved in it like salt, as well as the temperature and depth of the water where the instrument currently is. That information is then paired with any other data to give environmental context.
Courtesy of Schmidt Ocean Institute