Basic HTML Version
ACT Protocols for Wave Measurement Systems
July 2012
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on, or around the NDMB buoy 46042. The test instruments will be pre-calibrated by the
methods designated by the manufacturer for operational deployment. Superstructure and bridle
must be configured as it is to be deployed operationally. The mooring should follow
manufacturer’s recommendations for deep water mooring.
Ancillary data are provided by NWS WFO Monterey operationally running the SWAN Model,
and by CDIP providing additional wave model output (see:
http://cdip.ucsd.edu/themes/user_groups/mariners )
. Wind speed, direction, atmospheric
pressure, air temperature, relative humidity and sea surface temperature are all available at this
test site. Additionally, there are 8 coastal -HF Radars, (2 long and 6 medium range) providing
surrounding data. It was also noted that NOAA has stationed its LIDAR aircraft at Monterey
and can also collaborate with satellite observations. This location was viewed as an ideal, multi-
party collaboration. Special thanks to JCOMM and NDBC for making this comparison possible.
10.2 East Coast, Shallow Water Waves (Task 3)
In situ evaluations of measurement systems performance in shallow water will be conducted at
the FRF. Located on the Atlantic Ocean and Currituck Sound, the FRF supports coastal missions
of the U.S. Army Corps of Engineers. The FRF, an IOOS Observatory, has a 15 sensor, cross
shore, pressure array located at 8 meters water depth for high resolution, shallow water
directional spectra wave measurement. The pressure array extends 250 meters in the longshore
direction and 100 meters in the cross shore direction. There is also a nearshore acoustic array in
3.5 -11 meter depth, two Directional Datawell Waveriders, one in 17.4 meter depth and another
in 26 meter depth, and a NDBC Buoy (44014) in 48 meter depth. The 8 meter pressure array
transmits data that are sampled at 2Hz for 2 hours, 16 minutes every 3 hours. NWS WFO
Morehead City/Newport, NC is running SWAN for this region and are also providing
meteorological data. The Delft 3D Model is also available for this location. Satellite
observations can also be obtained.
This site will be used to evaluate acoustic and pressure sensor measurement systems as well as
buoys. The ADCP’s (such as RDI and Nortek ) will be deployed 30 meters apart, to avoid cross
talk, in 8 meters depth. The FSI and Valeport can be
deployed directly within the pressure array with no concern
of interference. A TRIAXYS will be added to the NDBC 1
meter buoy and the Waverider will be deployed in the surf
zone. If test buoys have an integrated meteorological
package they will be deployed further off shore and co-
located with the 17.4
meter depth Waverider. All systems will be deployed in the
longshore direction. A Datawell may be deployed in 8m
array as well. All the instruments will be cabled for real time
data transmission to insure the systems are working for the
entire deployment. Instrument maintenance will be per
manufacturer recommendations. All raw data from instruments will be recorded and processed as
in full operational deployment. ACT staff will be on site to set up and deploy instrumentation
with support from USACE.