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MULTIBEAM BATHYMETRY

One workstations was used for the acquisition of multibeam data, interfacing by a multiserial and Ethernet link a RESON 8160 P1 processor, an TSS MAHRS MRU and FOG compass, DGPS receiver (Fugro Omnistar), by a MOXA Multi/serial I/O, TC/P and UDP network sockets. The MBES was the 50kHz, 126 0.5°, 150°aperture RESON 8160 (5000 m range). The sonar head is positioned on the ship's keel using a V-shaped steel frame. A Sound Velocity probe at the Sonar Head is interfaced directly to the MBES processor, thus providing the necessary real-time data for the beam-forming.

In addition two data sets were generated and stored on separate computer for backup on HD and CD/DVD. The PDS-2000 was able to build a 20 m DTM during the acquisition of the entire surveyed area. The existing multibeam datasets will therefore be used for an up-to-date regional bathymetric compilation.



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2007-06-18