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Cordell Bank Moored Instruments - Wind Speed and Direction
Instrument Type: RM Young 05103 Wind Monitor
Description: The wind speed sensor is a four blade helicoid propeller. Propeller rotation produces an AC sine wave voltage signal with frequency directly proportional to wind speed. The wind direction sensor is a rugged yet lightweight vane. Vane angle is sensed by a precision potentiometer housed in a sealed chamber. With a known excitation voltage applied to the potentiometer, the output voltage is directly proportional to vane angle.
Location: Atop buoy mast at Northwest end of Cordell Bank
Latitude 38° 02' 55.8" N
Longitude 123° 27' 24.0" W
Installed: May 8, 2007
Specifications - Wind Speed
Range: 0 to 224 mph (0 to 100 m/s)
Accuracy: 0.6 mph ( 0.3 m/s) or 1% of reading
Propeller Distance Constant: 2.7 m (8.9 ft)
Starting Threshold: 2.2 mph (1 m/s)
Specifications - Wind Direction
Range: 0 to 355 degrees
Accuracy: ± 3 degrees
Dead Band: 5 degrees (355 to 360 degrees)
Starting Threshold: 2.4 mph (1.1 m/s)
Acquisition Settings:
Sample Rate: 1 Hz
10 minute vector average of speed and direction (magnetic) recorded once per hour
Peak wind speed (gust) recorded during 10 minute sample
Data Access
 Cordell Bank Buoy Page
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