Contact: Brett Israel
Georgia Institute of Technology
Caption: Kelsey Poulson-Ellestad, a former graduate student at the Georgia Institute of Technology, now at Woods Hole Oceanographic Institution, works with a Conductivity, temperature and depth (CTD) sampling rosette, which is lowered over the side of a vessel and is used to collect water samples from various depths.
Credit: Kelsey Poulson-Ellestad.
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