ALTUS: Siltation, Sedimentation, Erosion
ALTUS is a submersible altimeter that is specialized in sediment monitoring in bays and estuaries. Immersible distance measurement system.
Study of variations in mudflat and beach levels as a function of tidal currents and swell.
Monitoring of erosion or sedimentation rate of coastal, estuarine, port or river beds
Waver recorder function
2 MHz transducer
Features and benefitsALTUS allows to study mudflats or beach level varitations according to tidal currents and swell.
The high frequency acoustic data logger is equipped with a 2MHz transducer located on a light frame at a given distance from the seabed. ALTUS can be used as a tidegauge thanks to its accurate pressure sensor.
Examples of useMonitoring of erosion or sediment deposits in coastal waters, estuaries, ports and rivers
Evaluation of the sediment volumes to dredge
Mathematic models validation
Millimetric measurements of the elevation changes of the seabed
AccessoriesFast wireless configuration and data collection thanks to a communication interface (Inductive Data Pencil) connected to the USB port of a PC using Winmemo software.
Range: 20 to 200cm
Accuracy: 2mm in the 20 to 70cm range / 5mm in the 20 to 200cm range
Acoustic frequency: 2MHz Beam 3.6°
Water height range: 0 to 20m (maximum 30m depth) / Accuracy <6cm / Resolution 0.8cm
Time: internal clock with calendar
Automatic start/stop: On/Off controlled by pressure sensor (burst mode available)
Sampling rate: programmable from >1second to 99hours
Autonomy: up to 8 months autonomy, sampling rate 5mn / Energy: replaceable Lithium batteries