Due to the specifics of the Baltic Sea, performing accurate measurements in the coastal zone is not an easy task. For the past decade, topographic laser scanners have been used for...

The data for the images of the sunken vessels SS Tiberia and RMS Leinster, submitted as entries to the Kongsberg Discovery Multibeam Image Contest 2023, was captured during seabed...

Topobathymetric Lidar technology has become an indispensable tool in environmental management, particularly for monitoring and preserving fragile ecosystems. In central Nebraska, a...

Dutch fishermen often discover remains of extinct large mammals such as woolly mammoths and aurochs, indicating that the North Sea was once inhabited by hunter-gatherer communities...

The 32km-long Afsluitdijk, completed in the Netherlands in 1932, transformed the Zuiderzee – once a shallow bay of the North Sea – into the freshwater IJsselmeer, named...

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...

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

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. How...

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...

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...

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

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, a...

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

How can AUVs be reliably used to map the 3D structure of the underside of sea ice, especially now that the climate crisis makes it more important than ever to understand its comple...

Currently, calibration of multibeam echosounders (MBES) for hydrographic surveys is based on the traditional ‘patch test’ method. This subjective method, although rigor...

It is widely and wrongly assumed that the world’s coastal regions have been surveyed in detail by modern techniques and that the resulting nautical charts are an accurate ref...

With millions of people around the world at risk from rising seas, it is essential to continue measuring the changing height of the sea surface to ensure that decision makers are e...

After 75 years, and using advanced imaging technology, ocean explorer Tim Taylor and his Lost 52 expedition team have officially discovered the final resting place of the 49 s...

What is the best image classification technique to optimize maps so that effective action can be taken to conserve seagrass meadows? The distribution of Posidonia oceanica seagrass...

On 20 September 2019, the German research icebreaker Polarstern left Tromsø, Norway, for what could be the biggest Arctic research expedition of all time. Once she reac...

Munitions in the sea pose a risk to the sustainable development of the ocean economy. In particular, they are a global challenge during the construction of wind farms, pipelines an...

Submarine groundwater discharge (SGD) is a significant part of the water cycle that delivers anthropogenically derived and naturally occurring nutrients to coastal waters. As part...

Inspection of dams is a high-risk task for divers because of strong currents and eddies. The use of emerging technologies such as uncrewed surface vehicles equipped with echos...

The AUV has been the tool of choice for shallow-water MCM and EOD operations for a number of years. The coverage by popular news channels of unfortunate events, such as the MH370 t...