S-44 and the systematic error

S-44 and the systematic error

IHO standard S-44 is often used (or misused) to specify the quality of a hydrographic survey. While it is a useful tool, it is easy to misinterpret. One ‘misuse’ is to...

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The renewal of a research vessel fleet

The renewal of a research vessel fleet

When contemplating the replacement of a research and survey fleet, a collective effort is required to meticulously curate an optimal new fleet, considering factors such as ship typ...

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The emergence of AI in hydrography

The emergence of AI in hydrography

With the ever-increasing and affordable availability of capacity and computing power to process and store data, the emergence of artificial intelligence (AI) in marine geomatics, o...

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New Golden Age of Exploration

New Golden Age of Exploration

Jyotika Virmani was executive director of the Shell Ocean Discovery XPRIZE before she entered Schmidt Ocean Institute (SOI), also as executive director. Two positions at the forefr...

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Forecasts for 2021: a Mixed Bag

Forecasts for 2021: a Mixed Bag

Ready to invest, in equipment, staff and training, but unsure about future growth at this stage of the Covid-19 pandemic: that seems to be the outcome of our Hydro International Re...

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Sub-bottom object detection

Sub-bottom object detection

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...

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Hydrospatial and the marine environment

Hydrospatial and the marine environment

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...

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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 rigor...

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