Continental

When you need more range!

190 kHz ContinentalThe Continental is a current profiler designed to get that extra range. At 190 kHz, you can measure the current profile in 250 meters of water, or you can choose the 470 kHz for 100m range if this what you need. In either case, you get the full advantage of affordable prices, flexible hardware with extra sensor interfaces, titanium and plastic housings, and an excellent software suite to control the instrument in online or stand-alone applications. The Nortek power management is included in the Continental, allowing stand-alone deployments from 3–12 months depending on battery options and range requirements.

All models come standard with compass, tilt, pressure, and temperature sensors and an internal recorder. Optional equipment includes larger recorders for longer deployment and external battery housings that do not interfere with the compass located in the low-profile Continental housing.

Applications

The Continental is used both in online projects and in stand-alone applications. The most common use is in bottom or subsurface configurations where the instrument is mounted upward, profiling the current from the instrument to the surface. In addition to the current profiler, you would then need a third party deployment frame and possibly an acoustic release system if there is no other practical way of retrieving the instrument. The data collected during the deployment are all retrieved at the end of the deployment and displayed in programs such as Surge.

In buoy mounted applications, the data can be collected in real time and transmitted to a shore station using radio or satellite communication.

In 2D applications, the Continental is equipped with 2 beams rather than the standard 3. The instrument is mounted horizontally on the channel or pier wall and profiles the 2D current along a horizontal segment. This application is common for navigation channels and at the entrance of ports. The most common 2D instrument is the 470kHz model, with extra large transducers to ensure maximum range, even in shallow water.

Continental data

The data were collected from a subsurface buoy deployed 175m below the surface in Ofoten, Norway. The data shows the average currents over a 10-day period. The aim of the study was to better understand the migration of spawning herring, which shows up as a strong signal in the acoustic intensity data. Click on image to see an enlarged version.

 

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