SonarPoint whale and boat

Hardware

 

SonarPoint

We are currently developing a system of small autonomous recorders called SonarPoint. This system will consist of an array of 3-5 recorders that are precisely time-synchronized to allow localization and tracking of marine mammals and other sound sources. This system is a major upgrade to the microMARS recorders that were developed with very limited resources and funding. This ONR sponsored R&D project is intended to provide a relatively low-cost solution for longer term monitoring of marine mammals with capabilities that are similar to much more sophisticated and expensive systems.Aaron with drifter

There will be two configurations available for SonarPoint. The first is a drifting system that relies on GPS and ARGOS integrated in an electronics package located inside a surface buoy that will be attached via an electronics cable to the recorder located a depth of several tens to a few hundreds of meters below the surface buoy. This system can be deployed as drifters, or tethered to a mooring on the seafloor in areas that are relatively shallow (< 200m). The second configuration consists of an array of seafloor recorders that are time synchronized using a precision, temperature-compensated pinger. This system is deployed with small release devices so that it can be retrieved after deployment. Both these systems will allow an infinite number of spatial configurations of the array to allow the user as much flexibility as possible. We will be field testing this system in early 2017 and expect the system to be available by early to mid-summer for commercial use.sonarpoint components

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