Technologies offers full
lake bathymetry and mapping services. Bathymetric
depth profiling is completed using a Kongsberg-Mesotech
Ltd. M3 multi-mode multibeam (M3) sonar system. The
M3's associated signal processing software forms a
120o swath image (in the athwartship plane)
of the water column formed by 256 receive beams, each
with an apparent beam-width of <0.5o
x 3o (figure 1). The
wide swath essentially paints the bottom with sound!
The M3 host software provides a sophisticated bottom
detection algorithm to generate 256 bottom points
per acoustic transmission (or ping). At approximately
6 pings per second,
that's > 1500 depth points per second!
The result is a seamless and
high-resolution bathymetry model of the acoustic bottom
with minimal interpolation. Our services include mapping
lakes, rivers, wastewater lagoons, tailings ponds
and cooling-water forebays. Ask us about our remote
operated surface vehicle for mapping high-risk areas!
1. Screen shot from the Kongsberg M3 data collection
software. The real-time 3D point cloud is shown in
left panel and a frame from the M3 multibeam sonar
echogram is shown in the right panel showing the bottom
detection points (green dots).
High Resolution Multibeam
Sonar Bathymetry Mapping Gallery
2. Sludge mapping results from the Stratford
Municipal Wastewater Lagoon, PEI. Note the circular
pattern of sludge accumulation where circulator pumps
3. Bathymetry model showing a water intake pipe
location that provides cooling water to an adjacent
4. 3D point cloud generated from multibeam sonar surveys
of the Bruce Power Nuclear Generating Station cooling
water intake forebay and pumphouse wall. Read the
case study here.
5. Unique geological feature and ancient glacial
spill-way within the East Arm of Lake Opeongo, Algonquin
6. Bathymetry survey of the Otonabee River (Trent-Severn
Waterway) near Campbelltown, Ontario