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

Effective Surveying Tool for Shallow-water Zones

A recent article provides an overview of satellite-derived bathymetry methods and how data can be integrated into survey campaigns, and showcases three use cases. Bathymetric data in shallow-water zones is of increasing importance to support various applications such as safe... (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

Rapidly Identifying Patterns and Problems in Multibeam Datasets

The Naval Oceanographic Office (NAVOCEANO) utilises a diverse suite of survey assets to collect high-resolution oceanographic and hydrographic data in shallow-water areas all over the globe. These assets maintain a high opera... (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)

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)

Multi-purpose ENCs for Ports

Ports require access to a wide range of data and information to function safely and efficiently. Some of that data is acquired from external stakeholders but most is generated internally within the port. It is very often mana... (read more)

Great Potential for SAS in Hydrography

Synthetic Aperture Sonar (SAS) has been around for over a decade but its primary purpose has been in mine detection rather than hydrographic surveying. To use SAS effectively a stable survey platform is required such as an au... (read more)
Data Quality

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)

First NOAA Chart Adequacy Workshop

The key objective of the NOAA Chart Adequacy Workshop was to demonstrate techniques to evaluate the suitability of nautical chart products using chart quality information and publicly-available information. The three-day work... (read more)

Crowdsourced Bathymetry

There is definite appeal to the concept of crowdsourced bathymetric data. But from where I sit as a National Hydrographer and nautical chart producer, the issues around using crowdsourced data are complex. Data quality, data... (read more)

Technology in Focus: Hydrographic Processing Software

Discussing and comparing software has often been tricky in Hydro International as it is difficult to put the packages together and see clear differences. In this overview of hydrographic processing software, we will high... (read more)

Quality Control of Survey Data

Quality control of survey data is an integral part of any hydrographic survey or inspection operation, but the focus is too often concentrated on the wrong sensors, the carrying out of unnecessary comparisons and ultimately b... (read more)
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