... boma 20 sweepmg system wth positional accuracy wentzell krupp atlas elektroruk gmbh surveymg echosounder port survey vessel survey operation cross-section plot accuracy depth value operation cross-section hamburg transducer High-accuracy Dredging Surveys at the Port of Ham...

... to mcrease the tune spent on depth surveys, although as a consequence the latter were unproved. Interferometnc swathe soundmg now adds depth values to the shadowgraph mformation of sidescan sonar. The Bathymetnc swathe sounder, operatmg at 300 kHz, succeeds m producmg depth data at a density whch is about...