Synthetic Aperture Sonar (SAS) makes centimetric-resolution side-scan survey with high coverage rates a now affordable reality. The new generation of commercial systems deliver 5cm by 5cm resolution, maintained to the...

During the 1990s De Beers Marine identified a major business opportunity in radically improving its geological modelling capability. It set up a project to deliver the necessary geophysical systems and...

3D Chirp is a surface-towed sub-bottom profiling system capable of imaging the upper tens of metres of the subsurface in three dimensions with decimetric resolution. This article describes the concept...

For attaining high-resolution echo-prints, echosounding equipment must fulfil certain requirements regarding directivity, pulse length and other properties possible to achieve using non-linear acoustics. One important problem in sediment acoustics is...

In early 2001, BP Exploration and Production, and Shell International and Production contracted C&C Technologies Inc. to conduct a marine survey for the proposed Okeanos Gas Pipeline route, using their...

In November 1941 the aircraft carrier H.M.S. Ark Royal was returning from Malta, when it was torpedoed and sunk by a German U-boat southeast of Gibraltar. Its destruction was a...

On 12 August 2002 IXSEA and OCEANO Technologies successfully completed their merger previously announced in March 2002, revolutionising the landscape of the positioning industry. With 100 staff and over 25...

Dredgers involved in mining for (precious) minerals and metals often work in an inland dredging pit. Dredgers float in a ‘wet environment’ where the surrounding water is used as transport...

Drifting echo-sounding buoys will soon provide bathymetric control in inaccessible areas of the oceans. The SSPARR (Seafloor Soundings in Polar and Remote Regions) buoy project holds great promise for providing...

The introduction of a new generation of products such as the Sounder Series and Chirp Series has done its work for Knudsen Engineering, according to Judith Knudsen, V.P. Sales/Operations.  ...