Suspended Sediment Profiler

The AQUAscat ^® 1000S, a Survey model, has applications in sediment transport studies, including measurement of suspended sediment profiles, precision altimetry, dredge plumes and turbulence. The device transmits high-frequency sound pulses on four transducers. It measures the sound scattered by sediment or other suspended materials at discrete spatial intervals programmable from 2.5 mm to 4 cm. For altimetry, this may span a few tens of centimetres; for monitoring sediment suspension profiles, a total range of around 1- 2 metres is typical, while dredge plume estimation may extend to 10 metres. The instrument is supplied in a subsea housing suitable for long-term unattended deployments. Batteries for various deployment schedules are available.

Key Features:

• Observe load and mean particle size
• Uses multi frequency acoustic backscatter method
• 4 fixed transducers
• Profiles of <1 m to 10 m
• Deploy in fresh and seawater to 1000 m depth
• Internal batteries and memory for autonomous deployment
• Integral temperature and pressure sensors