Maritime technologies insights
What is S-100?
The S-100 is the Universal Hydrographic Data Model developed by the International Hydrographic Organization (IHO). It's a comprehensive framework that modernizes maritime data standards, replacing the older S-57 format with a machine-readable, interoperable approach.
S-100 supports a wide variety of hydrographic-related digital data sources, aligns with international geospatial standards (ISO 19000 series), and enables easier integration of maritime data into navigation systems worldwide.
Global Coordination
Developed by IHO, WMO, IALA, and IEC for standardized maritime data
Machine-Readable
Automated data processing and plug-and-play system integration
Interoperable
Seamless data exchange across countries and maritime organizations
Implementation Timeline
Global implementation is driven by the International Maritime Organization (IMO) through updated ECDIS performance standards.
Year Milestones
2024–2025 Operational S-100 standards approved
2026 S-100-capable ECDIS permitted on ships
2027 Type-approved S-100 ECDIS widely available
2029 Mandatory S-100 ECDIS for all new installations
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Existing vessels may continue using S-57 ECDIS during the transition period.
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Many new systems will operate in “dual-fuel” mode, supporting both S-57 and S-101 charts simultaneously.
CASE STUDY -A modern container vessel is approaching a shallow approach channel just prior to high water.
Traditionally, the Master, pilot, and the OOW on the bridge would use their knowledge of the vessel’s draft compared with the water depths and tidal predictions to assess the situation.
This traditional form of bridge assessment remains a dominant feature of maritime navigation in a significant number of areas around the world.
However, the availability of hydrographic data is now becoming a feature of modern vessel operation.
The S-100 Universal Hydrographic Data Model, introduced by IHO , has the potential to revolutionise the way hydrographic information is used on the bridge.
S-100 differs from previous electronic chart ECDIS displays because it has the capability to integrate various levels of hydrographic information with information on the environment.
Practical Innovation & Sustainable Future
Bridging the gap between maritime tradition and technological innovation to create a smarter, more efficient, and sustainable maritime future.