The 32km-long dam called the Afsluitdijk, separating what was then the Zuiderzee from the North Sea, was completed in the Netherlands in 1932. It transformed the Zuiderzee from a large, shallow bay of...

Hydro International spoke to five leading experts about the present and future of the hydrographic industry. In this interview, John Nyberg (NOAA’s Office of Coast Survey) looks forward to a more di...

While nautical charting mainly focuses on bathymetry and objects that form a hazard to shipping, offshore construction and dredging require sub-bottom information. There is nothing worse in any projec...

Hydrographic measurements are nowadays usually carried out using multibeam echosounders (MBES). The measurements obtained by each operational hydrographic vessel need to be regularly controlled on a w...

Gert-Jan Reichart divides his time between the Royal Netherlands Institute for Sea Research (Royal NIOZ), where he is head of ocean research for four days a week, and Utrecht University, where he work...

Hydrographers and data processors are expected to produce high-quality deliverables with a swift turnaround in this present age of data collection and technological refinement. However, the cost of pr...

The Netherlands is a maritime nation, evidence of which can still be found in waters throughout the country. Even so, only a small part of these waters has been surveyed, and it is very likely that th...

Hydrographic offices (HOs) today exist in a world of accelerating technological change that is influencing human behaviour and creating new needs for and ways of exploiting data to understand our worl...

“In all beginnings dwells a magic force …”. Hermann Hesse’s famous verse seems to be particularly relevant to the coming decade when it comes to marine activities. Three ambitious global proje...

Autonomous underwater vehicles are becoming more and more common in the maritime industry, and technology is rapidly developing for different applications, such as inspection, maintenance and surveill...

Although the single beam echosounder is still in use, it has over the last 25 years gradually been replaced with new and less expensive multibeam echosounder (MBES) systems. And, although some side-sc...

In the last decades, we have progressed from ‘graphic’ to ‘digital’ and now to ‘spatial’. During the opening plenary session of the Canadian Hydrographic Conference (CHC) 2020, the author ...

In 2019, Swire Seabed successfully used a novel AUV/USV solution to complete a commercial pipeline inspection campaign, surveying 175km of pipe. This involved the use of a HUGIN AUV paired with the SE...

Accurate bathymetric mapping of shallow areas is essential for many offshore activities. Through Structure from Motion (SfM) and Multiview Stereo (MVS) techniques, images can provide a low-cost alter...