Service Spotlight: Multibeam Hydrographic Surveys

Need a hydrographic survey? Does a structure have a scour problem? Do you need dredge quantities? Would you like a 3D model of a submerged structure? If your answer is "yes" to any of these questions we can help with our multibeam sonar! Multibeam surveys offer considerable advantages over traditional single beam surveys. Instead of running intermittent lines with a single sonar beam and interpolating depths between the lines, multibeams use a swath of hundreds of beams to provide “100 percent” coverage of the seafloor. This provides for identification and visualization of underwater objects, hazards to navigations and other features. 
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​Marine Solutions owns and operates a high resolution mutibeam sonar.  Our sonar is coupled with an Applanix POS MV providing accurate attitude, heading, heave, position, and velocity data, using the latest Inertially-Aided Real-Time Kinematic (IARTK)/GPS technology. Additionally, positioning data is post processed using observations from the CORS Network to provide the most accurate positioning information available.  Marine Solutions is using a variety of collection and processing software packages to gather and process survey data.  The software used can provide the data in all common formats that a client may desire and provides interactive models of survey data that can be viewed using free software.
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Some features of our system include:

• Swath 10° to 160°
• 256 individual beams
• 170kHz to 450kHz resolution, 1° x 1° beam widths at 400kHz
• Ultra High Resolution at 700kHz with 0.6° x 0.6° beam widths
• Horizontal accuracy ±0.03 m (Post-Processed)
• Pitch & Roll accuracy ±0.015°
• Heave accuracy 5 cm of 5%
• True heading (with IARTK) ±0.025°
• High immunity to GNSS outages