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Bathymetry from UAV Imagery and Machine Learning

Bathymetry from UAV Imagery and Machine Learning

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...

Extraterrestrial Hydrography

Extraterrestrial Hydrography

While there is still lots of ocean mapping work to do on Earth, oceans situated elsewhere in our solar system hold plenty of mysteries too, writes Wim van Wegen in this column. The oceans on our plane...

Measuring and 3D Mapping of Sea Ice in the Arctic

Measuring and 3D Mapping of Sea Ice in the Arctic

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 complex structure? Sea ice...

Automatic Calibration for MBES Offsets

Automatic Calibration for MBES Offsets

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

Sentinel-2 Coastal Charting Worldwide

Sentinel-2 Coastal Charting Worldwide

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 reflection of the nature of...

Next Step in Your Hydrographic and Surveying Career

Next Step in Your Hydrographic and Surveying Career

Certification is the next step in your hydrographic and offshore surveying career, according to experienced hydrographic surveyor Bruce Calderbank. The Canadian Hydrographer Certification Scheme (CHCS...

How Copernicus Sentinel-6 Will Monitor the Oceans

How Copernicus Sentinel-6 Will Monitor the Oceans

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 equipped to take appr...

Largest Planned Tidal Stream Project in the World

Largest Planned Tidal Stream Project in the World

Balmoral Subsea Test Centre in Aberdeen, Scotland, has carried out hydrostatic tests on equipment that will be used to monitor the interaction between tidal turbines and marine mammals in the Pentland...

Mapping the Subsea Forests of the Mediterranean

Mapping the Subsea Forests of the Mediterranean

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 meadows has been ma...

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Contact information
Wim van Wegen
wim.van.wegen@geomares.nl
+31 (0)514 561854

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