CTD (1) - Launching the CTD to Collect Seawater Samples

A CTD rosette is maneuvered over the side using a shipboard crane on the R/V Sally Ride in the early morning darkness and lowered into the ocean to collect seawater samples at specific depths, previously selected by each research team. Instruments mounted on the bottom of the CTD rosette will measure the Conductivity (a measure of the salt/salinity in the ocean), Temperature, and Depth.
[This video was recorded by Science by the Sea during the PUPCYCLE II Research Cruise aboard the R/V Sally Ride and is published with the scientist's permission to Science by the Sea:TH-cam.]