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Diver installs ADCP

By Coastal and Marine Hazards and Resources Program 2010 (approx.)
SCUBA diver underwater holds sampling gear.
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Detailed Description

USGS diver installs an Acoustic Doppler Current Profiler (ADCP) in Lake Ontario, New York. Research divers deploy and maintain these instruments in rivers, lakes, and estuaries nationwide to monitor groundwater and surface-water flow.

Sources/Usage

Public Domain.