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ACT Protocols for Wave Measurement Systems
July 2012
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3.6 JCOMM
JCOMM shall:
• Assist in logistics at Ekofisk. The LASAR array on Ekofisk will provide the “ground truth”
for testing the capabilities of the Datawell buoy as a reference method in the evaluation.
3.7 Manufacturers
Manufacturers shall:
• Review the draft test/QA plan and provide comments and recommendations.
• Approve the revised test/QA plan.
• Work with ACT to commit to a specific schedule for the verification test.
• Provide duplicate commercial-ready sensor systems for testing.
• Provide on-site operator(s) to train ACT staff in the installation, operation, and maintenance
of the sensor systems.
• Review and comment upon their respective draft verification statements.
4.0 Wave Measurement System Capabilities, Descriptions, and Claims
To date, the participating technologies range from the relatively simple pressure sensor to the
more complicated remote sensing technologies. Regardless of technology,
all instruments tested
would be delivered by the manufacture as a stand-alone package, which includes data logging,
data transformation/conversion equations, independent power, data transmission and any other
features (such as bio-fouling prevention) typically provided to the customer. The following
provides a brief summary of the specific technologies planning to participate in an evaluation to
date. The sensors are grouped according to their typical deployment location (i.e. seabed, surface
mooring, remotely sensed, etc.) because this, in large part, establishes the types of constraints
imposed on the varying technologies.
4.1 Seabed Sensors:
Falmouth Scientific
- The 3D Wave Meter provides wave
direction, wave height, and other wave statistics by combining a
high-accuracy acoustic current meter with a high-accuracy, state-
of-the-art, micro-machined silicon pressure sensor (PUV method,
pressure and U,V velocities). Wave direction is determined by an
electromagnetic (flux gate) compass, and can sample at rates of 1
to 5 Hz. The Wave Meter can be deployed in a multiple-mode
format to allow periodic burst sampling of wave data as well as
long-term averaging. Internal processing of spectral data allows
simplified telemetry of wave data for near real-time wave
reporting.