Bathymetric Survey

Echosounders calculate water depth by measuring the time it takes for an acoustic signal to reach the bottom and the echo to return to the watercraft. This information can be collected with GPS survey location to derive an accurate underwater topography!

Rekon utilies a portable USV or Unmanned Survey Vehicle designed to complete bathymetric surveys with a single beam echo sounder operated safely from shore. The USV is equipped with a Survey Grade 200 kHz Single Beam Echo Sounder with an effective collecting depth of 0.4 meter min depth up to 100 meter deep.

Rekons Survey Grade Echo Sounder is capable of being mounted on various watercraft. This ability allows Rekon to choose the best watercraft to conduct surveys safely and accurately and in rivers when other means of data collection would otherwise be unsafe or not possible.

Bathymetric Surveys are mostly planned in an autonomous mission planning software and carried out automatically while the pilot ensures a safe mission. However, for waterways with moving current or obsturctions on along the shoreline it is sometimes favourable to manually maneuver the USV.

Bathymetric Survey data is much like traditional survey data points in that all points have coordiantes and elevation information for each point collected. When the echosounder is collecting a survey point up to 20pt/sec the amount of information collected can be quite extensive.

Couple Bathymetry data with drone LIDAR and Photogrammetry and you have a really powerful tool when conducting Hydrological surveys.

The typical output for Bathymetric data is contour lines as well as a DEM or "Digital Earth Model".