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Bathymetric Survey
BJNorth bathymetric survey is used to survey and study the beds or floors of water bodies including lakes, streams, dams and rivers.
What Is It?
Bathymetric survey is the underwater equivalent to a topographic survey and to study and provide an accurate model of the bed or floor of a body of water.
BJNorth offer both manned and unmanned Bathymetric survey solutions for streams, rivers, channels, reservoirs, lakes, dams and other water bodies, delivering point clouds, underwater contours, 3D profiling and sidewall mapping.
The manned equipment consists of a 3.1m Stacer centre Console watercraft equipped with railings and a 25hp Yamaha outboard. This configuration leaves minimal impact on the environment and is acceptable to environmentally sensitive lakes and waterways, subject to client and/or government approval. The CEE-LINE Hydrographic dual frequency echo sounder connects with the Trimble/Topcon suite of equipment and can be used with either GPS or Conventional instruments or a blend of both simultaneously. This unit is easily transferred to our specially configured kayak for survey in confined and protected waterway areas.
If the need arises for a larger boat due to safety in more open or busy waters, the equipment is simply placed in a larger boat. Generally the operation is by a single user.
BJ North also offer Unmanned Bathymetric Survey solutions. The advanced sonar systems on the unmanned vessel ensures accurate and reliable representation of features and provides the capability of accessing shallow and near-inaccessible areas where traditional boats cannot be used.
