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Currents and Waves

Instrument Type: InterOcean Systems S4-DW Current and Wave Sensor

Description: The S4 measures direction and magnitude of horizontal current motion. Water flowing through an electromagnetic field created by the instrument produces a measurable voltage proportional to water velocity. Waves and tides are measured using a semiconductor strain gauge.

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: Not currently deployed

Specifications:
Current speed range: 0-350 cm/sec
Current speed resolution: 0.2 cm/sec
Current speed accuracy: 2% of reading 1 cm/sec
Current speed threshold: 0.2 cm/sec
Direction range: 0-360&deg
Direction resolution: 0.5&deg
Direction accuracy: 2&deg
Depth range: 0 to 70 m
Depth resolution: 4 mm
Depth precision: 0.15% FS

Historical sensor data query

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