Almost all (99%) international data is transmitted by around 265 subsea cable systems connecting the world. The total length of subsea cables exceeds 1.6 million kilometres, and th...

In Brazil there is a legal requirement to inspect all hydroelectric dams and power plants (HPP) every five to ten years, but the methods to be employed for such inspection are not...

For hydro- and topographic surveying companies it is common to gather data in the field and process it into formats for presentation. Nowadays, technology  provides more and m...

Bridges with bridgeheads and supports in water need regular inspection, especially the underwater parts, and even more so if they are exposed to current - as scour needs attention....

Aerial mobile mapping using Lidar and GNSS-aided inertial navigation has revolutionised the efficiency of land and shallow-water bathymetric surveying. Now, fast ultra‑high resolut...

The Gemini Offshore Wind Farm in the North Sea is located 85km north of Groningen, The Netherlands. Van Oord, a leading Dredging and Marine Contractor, started the offshore constru...

With the increase of offshore marine projects over the decades, demand for a cost-effective and efficient risk-based approach for the mitigation of UXO (Unexploded Ordnance) has be...

Fleets of small AUVs are used to survey pipeline routes, rig scour and debris clearance, and for harbour development. While AUV bathymetry can be as good as or better than boat-mou...

Netherlands-based positioning specialist Geocon was awarded a contract for the immersion of one of the deepest and longest immersed tunnels in the world, in South Korea’s Jin...

During the past few years, autonomous underwater vehicles (AUVs) have established a greater presence in the hydrographic survey market and in the collection of oceanographic enviro...

The greatest of the Coast Survey mid-nineteenth century harbour studies was that of New York Harbour. In 1855, the Commissioners on Harbor Encroachments of New York requested that...

The Dutch company SPT developed a new foundation concept for offshore wind turbines in order to reduce the costs and environmental impact: a Self Installing Wind Turbine. The conce...

A progressive spirit was awakening in the United States in the mid-nineteenth century. This movement was notable for emphasis on education reform, prison reform, women’s suff...

The inspection and maintenance of vital resource facilities is an integral part of any regional health and stability management programme. Providing consistent quality output whils...

Advances in marine & terrestrial scanning survey techniques together with precise inertial navigation sensors, multi-sensor acquisition systems and cost-effective UAS photogram...