The result was gaps in the data on the target area. We employed the SeaBat T50’s electronic swath steering and sailed the boat as close to the dock as possible, but we still could not obtain soundings in the middle of the dock. We knew getting soundings on the middle of the submerged dock was going to be a challenge. The SeaBat T50 was able to operate in the site’s water depths with a usable swath, translating to 7x water depth swath coverage all data well within USACE’s most stringent requirements when statistically analyzing confidence vs. The SeaBat T50-P, with its extremely high resolution performance, high sounding density, unique adaptive gates, and other performance enhancing tools made it an excellent choice to survey the complicated structure and produce an extremely clean and detailed data set with minimal editing. Data was collected in HYPACK/HYSWEEP Multibeam data Acquisition Software. An Applanix POS MV was used for position, motion, and heading compensation.
To collect high-resolution bathymetry around the dock, we employed the Teledyne RESON SeaBat T50-P™ Multibeam Sonar side-mounted on the US Army Corps of Engineers Baltimore District’s survey vessel. Most pilings on the right are submerged and not visible.įigure 8 EchoBoat-ASV™ equipped with a SonarMite DFX™ Echosounder, Trimble GA830 GNSS Antenna, and Seafloor AutoNav™įigure 9 Remote controlunit for the HyDrone-RCVįigure 10 & 11 Remotely controlled HyDrone-RCV surveys the hazard area of submerged dockįigure 12 View of dock and close-up view of singlebeam survey lines (red dots) used to fill in the gap of data from multibeam surveyįigure 13 Combined survey lines from multibeam and singlebeam echosounders. Pilings on the right still present, some penetrate above the water surface. Dock is broken away from pilings on the right, and slanting down.
HYPACK CONTROLLING SOUNDING PORTABLE
Shallowest sections of the submerged dockįigure 2 USACE-Baltimore District survey vessel with RESON SeaBat T50-P and portable HyDrone-RCVįigure 5 Multibeam image: side view of dockįigure 6 Seafloor Systems HyDrone-RCV integrated with HydroLite-TM, Trimble SPS985 GNSS Smart Antenna, and Seafloor Radio Telemetry Systemįigure 7 Seafloor’s AutoNav™ auto pilot control system integrated on EchoBoat and HyDroneįigure 4 Multibeam image: side view of dock, no singlebeam. Figure 1 Hazard area of the submerged dockįigure 3 Multibeam image showing missing data in the
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