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Tow-Yo method of CTD water column sampling.

Tow-Yo method of CTD water column sampling.
Tow-Yo method of CTD water column sampling.
Tow-Yo method of CTD water column sampling.
Tow-Yo method of CTD water column sampling.
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182772
Cook, John E.
Tow-Yo method of CTD water column sampling.
Illustration
12/26/2007
tow_yo.jpg
Image Of The Day caption:
To search for evidence of hydrocarbon plumes emanating from the stricken Deepwater Horizon well in 2010, a WHOI research team used a technique called a tow-yo. From the research vessel Endeavor, the team alternately hoisted and lowered a sensor package through the water like a yo-yo while the ship steamed in a circle more than six miles across centered on the broken wellhead. By using data from the autonomous underwater vehicle (AUV) Sentry to target their search and tow-yo-ing instruments between 2,600 and 4,600 feet deep on a mile-long cable, the team was able to find and sample the plume.
Illustration by Jack Cook and Amy Caracappa-Qubeck
© Woods Hole Oceanographic Institution
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