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BML Offshore Mooring: Acoustic Doppler Current Profiler
Instrument Type: RD Instruments 300-kHz Workhorse Sentinel
Description: Acoustic Doppler Current Profiler (ADCP) produces a vertical profile
of current velocities. The ADCP transmits sound at a fixed frequency and listens
for the Doppler (frequency) shift in the echoes returning from sound scatters
in the water. The ADCP uses multiple beams pointed in different directions to
compute water velocities in three dimensions. Echoes with different delays allow
measurements of current velocities at different depths.
Location: Approx. 1.2 km off Bodega Head at a depth of 30 m
Latitude 38° 18' 42.2" N
Longitude 123° 04' 57.4" W
Installed: August 2004
Specifications:
Depth cell size: 2 m (0.2 to 8 m)
Number of depth cells: 14 (1 to 128)
Velocity range: 5 m/s
Accuracy: 60 mm/s (standard deviation)
Echo intensity: 1.5 dB
Acquisition Settings-
10 minute averaging
1st Bin Range = 4.22 m
Bin Size = 2 m
Number of Bins = 17
55 pings per ensemble
ADCP Data - most recent 24 hours
ADCP Data - most recent 7 days
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