The vessel was set-up for multibeam data acquisition and navigation with Trimble's HYDROPro and IGM's NAVMAPsoftwares.
Three workstations were used for the acquisition of
The MBES was the 12kHz, 81 1.5°, 120°aperture EM-12S (11000 m range) by SIMRAD . The sonar head is positioned flush on the ship's keel. 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. The data were acquired by a SIMRAD's MERMAID workstation, who collected also the gyrocompass and TSS MRU data for the real time corrections. A Simrad's NEPTUNE workstation served as quick data quality check and post-processing. The datum WGS84 and the UTM, zone 30 and 31, were chosen for navigation and display purposes. Timing was set to UTC for data acquisition.
The instrumental offsets are presented in Fig. 7 and in Tab. 3
figure
