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Construction & Engineering

Whenever new objects have to be created, be it on or below the land and water, construction plays a role. The construction process often starts with surveying, either [marine surveying]...

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Satellite Positioning

Within the last twenty years Global Positioning System (GPS) receivers have revolutionised navigation. Integrated devices are capable of providing time, position, height, direction, heave and attitude to accuracies of a...

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Underwater Positioning

By Camille Béchaz, ACSA and Fran­­çois Boucquaert, Fugro-Topnav, France Fugro evaluated the accuracy of the GPS Intelligent Buoy (GIB-Lite) system for its possible use in shallow-water offshore underwater positioning applications....

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Bathymetric sensors in education

The position of bathymetric sensors in hydrographic education is beyond discussion, as bathymetry is, was and will continue to be the bread and butter of the hydrographic surveyor. Bathymetric sensors...

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Mapping northern Greenland waters

An understanding of the interplay between glaciers and the ocean is needed to improve sea-level rise projections. Seafloor mapping is critical in this pursuit, particularly where the ice sheets of...

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GeoTag Underwater Positioning Solution

Sercel (France) has launched GeoTag, an acoustic positioning solution for seabed seismic acquisition. GeoTag can be used to accurately position all types of ocean bottom cable (obc), ocean bottom node...

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