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Plot showing Neutrally Buoyant Sediment Trap adjusting to steady depth.

Plot showing Neutrally Buoyant Sediment Trap adjusting to steady depth.
Plot showing Neutrally Buoyant Sediment Trap adjusting to steady depth.
Plot showing Neutrally Buoyant Sediment Trap adjusting to steady depth.
Plot showing Neutrally Buoyant Sediment Trap adjusting to steady depth.
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525405
Cook, John E.
Plot showing Neutrally Buoyant Sediment Trap adjusting to steady depth.
Illustration
06/01/1997
NBST.jpg
Caption from Oceanus magazine, Vol. 40, No. 2, Pg. 34:
A record of pressure measured by a neutrally buoyant sediment trap during a three day long deployment. The trap is passive for the first three hours after launch, and then begins to check and correct depth at hourly intervals. This instrument was targeted for 150 meters depth, and was slightly heavy as it was launched. At hour four it rose to the target depth by increasing its displacement slightly. It then remained within about 10 meters of its target depth until the end of its mission.
Illustration by Jack Cook
Copyright © Woods Hole Oceanographic Institution
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