Jersey is playing a key role in a new international programme to evaluate the S-100 data framework for future maritime navigation.
The UK Hydrographic Office (UKHO) and the French Hydrographic and Oceanographic Service (SHOM) are leading the project, with Ports of Jersey providing high-fidelity bathymetric data for the required S-100 data sets.
The implementation of S-100 data standards has the potential to deliver significant benefits for the maritime industry and global trade. These include supporting safer navigation of complex environments, optimising voyages to reduce emissions, and making port operations more efficient. Additionally, as S 100 data is machine-readable, the framework will help support next-generation, autonomous navigational technologies.
Throughout the trials, the UKHO and Shom will collect evidence to inform safety and efficiency use cases, while providing guidance on the introduction of the S 100 data framework, which is set to underpin the future of maritime navigation. These insights will play a key role in building global readiness and alignment on how S-100 data standards can be created and harmonised across international borders.
The international cross-border trial will follow a route from St. Helier to Saint-Malo, France, in early 2026. The route was selected due to its tidal constraints, cross-border waters and operational challenges, providing the ideal environment to test the capabilities of S-100 standards and coordination between partners. This includes evaluating how national hydrographic offices can successfully collaborate to compile and align comprehensive port and boundary data for conversion into S-100 data sets.
Tom Mellor, Head of Technical Partnerships at the UKHO, said: “As the most comprehensive S-100 sea trials to date, this programme will provide valuable feedback on the production and implementation of S-100 data sets. Through direct engagement with end users and the wider hydrographic community, these trials will help us to ensure we are continuing to support the maritime sector as it prepares for the S-100 transition.”






