We use cookies to improve your experience, some are essential for the operation of this site.

CTD being deployed off Healy.

CTD being deployed off Healy.
CTD being deployed off Healy.
CTD being deployed off Healy.
CTD being deployed off Healy.
Geolocation data
(59°54′43″N, 170°20′55″W)
Comments (0)
348115
Linder, Christopher L.
CTD being deployed off Healy.
Still Image
04/08/2009
graphics/PD5_dailys/cl_20090408075827.jpg
Caption from Polar Discovery: A winch operator inside the aft control room controls the CTD's cable and its A-frame, the big yellow structure that leans out over the water. The CTD's cable is special - it holds the instrument and it also carries data. The CTD sends measurements back to the ship in real time, and the operator on the ship sends back signals for it to close its bottles. The cable is 8,000 meters long, so the CTD can be used in very deep water. That means the data has to travel five miles even if the CTD is just below the ship.
Image of The Day caption:
A CTD, which stands for Conductivity, Temperature, and Depth, is one of the most basic tools for understanding the ocean. The instrument is made up of a set of small probes attached to a large metal rosette wheel and is lowered on a cable down to the seafloor. The CTD's cable is special ? it holds the instrument and it also carries data. The CTD sends measurements back to the ship in real time, and the operator on the ship sends back signals for it to close its bottles. The cable is 8,000 meters long, so the CTD can be used in very deep water. That means the data has to travel five miles even if the CTD is just below the ship.
Photo by Chris Linder
© Woods Hole Oceanographic Institution
Labels
This item includes these files
Image
Image
Collections