Technologies
TerraSond's knowledge and ability to manage new technologies enables us to play a key role in the surveying and mapping industry.
We own and maintain a large suite of complex software and equipment that is necessary for executing accurate land and hydrographic surveying and mapping. The technology includes specialized tools for obtaining measurements and performing calculations on land and water that are essential for creating, editing and analyzing spatial and attribute data.
We support our staff's ability to manage new technologies by providing additional education and training. We also encourage hands-on experience to increase the conceptual understanding of geographic information systems (GIS) and their practical application for our projects.
Acoustic Doppler Current Profilers
TerraSond uses ADCPs in rivers and canals for long-term continuous discharge measurements, mounted on boats for instantaneous surveys in the ocean or rivers, and mounted on the seabed for long-term studies. We also use them to locate eddy's that could damage oil drilling activities.
ADCPs use ceramic transducers and work in water, similar to the way loud speakers work in air. The sound pulse they produce travels through the water and the echo of the sound is returned and shifted in frequency due to the Doppler affect.
Nortek AWAC
The Nortek AWAC is an instrument that gives both a current profiler and a wave directional system in one unit. You can measure the current speed and direction from the bottom to the surface and you can measure long waves, storm waves, short wind waves, or transient waves generated by local ship traffic. 
RDI Workhorse Sentinel
The lightweight and adaptable Workhorse Sentinel is easily deployed on buoys, boats, or mounted on the seafloor. Real-time data can be transmitted to shore via a cable link or acoustic modem, or data can be stored internally for short or long-term deployments. The Sentinel is easily upgraded to include pressure, botto… 
SonTek RiverSurveyor
The SonTek RiverSurveyor ADP system combines advanced ADP hardware technology with an easy to use software package that enables you to make underway discharge measurements in a matter of minutes. Additionally, the RiverSurveyor system provides a 3D velocity and full bathymetric profile. There are several different hard…