LDEO's Acoustic Doppler Current Profiler
October 19, 2007
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Photo by John Lipscomb
Philip Orton of Lamont-Doherty (LDEO) with his ADCP (Acoustic Doppler Current Profiler) which we've just retrieved from the bottom on Tappan Zee. It's been measuring and recording current direction and speed at all depths for over a month.