Data Quality

In hydrography, there are many aspects influencing the quality of your data during acquisition, processing and managing the data. This theme gives an overview of articles reflecting on this subject.

Must read

Gathering Data Once, for Multiple Purposes

‘Gather once, use many times’ has applied to bathymetric data gathering for many years, particularly in public bodies and organisations. Whilst understandable and desirable to have one infinitely adaptable dataset appealing to all users, it is mainly driven by th... (read more)
Most read

High-resolution Structural Inspection of a Flooded Tunnel

Acquiring accurate data on the structural integrity of submerged tunnels, as well as shafts and underwater caverns, has long been a challenging and costly problem for water companies, hydroelectric schemes and mine operators alike. While dewatering of tunnels is one option t... (read more)
About the Focus Stories

Every month we will focus on a specific theme, featuring a selection of articles which have previously been published in Hydro International magazine. to present a complete recap of the subject. If you don't want to miss these themed recaps, sign up for the newsletter (sign up here).

Data Quality

Crowdsourcing Enhances Navigation Awareness

In this internet age, crowdsourcing is fast providing practical contributions to our understanding of the world around us. Whether it be software developed in an open-source environment, inputs from ‘those in the know&r... (read more)

Changes to Data Sourcing in Modern Times

Seaports, waterways and climate are inextricably linked. Weather anomalies change bottom contours and destroy aids to navigation, compromising safety. In the past decade maritime applications, maturing marine technologies and... (read more)

Multi-sensor Coastal Mapping

Fugro has tested a multi-sensor approach to balance growing data needs with limited agency budgets. Coastal mapping programmes are quickly becoming a priority for government agencies across the globe. The desire to bette... (read more)

Raw Data as Information Source

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 more solutions that enable analysis of the ext... (read more)

Improving Satellite-derived Bathymetry

Bathymetry is traditionally acquired using singlebeam or multibeam echosounders. This method produces accurate depth measurements along transects but is constrained by operating cost and an inability to survey in very shallow... (read more)
Data Quality

Improving Uncertainty Visualisation in ENCs

The visualisation of bathymetric data and associated uncertainty in electronic nautical charts (ENCs) is important when it comes to planning and monitoring a ship’s route safely. However, a study confirmed that the curr... (read more)

Introducing GIS to Support Maritime Accessibility

With over 500 line connections to and from more than 1,000 ports around the globe, the Port of Rotterdam in The Netherlands is the cornerstone of international freight transport. It is the perfect base for import an... (read more)

Very Shallow Water Survey - A New Approach

Hydrographic surveys in very shallow waters can have several applications such as nautical chart updating, performing environmental monitoring and characterisation, determination of dredged volumes, establishing navigational... (read more)

Telepresence Technology

Telepresence, in this context, refers to the suite of technologies and operational methodologies required to allow key mission personnel to be located onshore while conducting ship-based oceanographic research and exploration... (read more)

Opportunistic Multibeam Surveying

Currently only ten to fifteen percent of the ocean floor has been mapped at resolutions of 100-metre pixel size or better and the vast majority of this mapped area is within territorial waters. One way to significantly increa... (read more)
Join Hydro International!

Follow Hydro International on Facebook, LinkedIn, Twitter or sign up for the newsletter! Don't miss the latest developments: join Hydro International!

12.299

SUBSCRIBERS

5.561

MEMBERS

5.060

LIKES

4.379
FOLLOWERS