Historic Milestone for Brazilian Nautical Cartography
Brazil has reached a significant milestone in nautical cartography with the production of its first Electronic Navigational Chart (ENC) under the international S-101 standard. The work, led by the Brazilian Navy Hydrographic Center (CHM) under the authority of the Directorate of Hydrography and Navigation (DHN), was concluded in September 2025. This inaugural S-101 ENC covers the strategic area of the Port of Suape in the state of Pernambuco, a vital hub for national maritime trade.
The Advanced S-101 Standard
The S-101 standard represents a new generation of hydrographic data, developed by the International Hydrographic Organization (IHO) as part of its broader S-100 Universal Data Model. It is designed to eventually replace the older S-57 standard, which has been in use for over two decades but is considered 'frozen' and less adaptable to modern technological advancements.
Key benefits of the S-101 standard include:
- Enhanced Navigational Safety: Provides more detailed and dynamic information, improving situational awareness for mariners.
- Improved Data Interoperability: Seamlessly integrates with other S-100 products, such as S-102 bathymetric surfaces, S-104 water level information, S-111 surface currents, and S-412 marine weather warnings.
- Greater Flexibility and Updating: Allows for easier and more frequent updates, similar to mobile phone applications, and supports machine-readable catalogues.
- Richer Information Display: Offers improved symbology, including color-coded buoyage, and better control over text placement.
- Future-Proofing: Designed to be compatible with emerging technologies, including Maritime Autonomous Surface Ships (MASS), and features improved cyber resilience.
Role of the Brazilian Navy and Implementation
The CHM and DHN played a central role in this achievement, employing a methodology inspired by the Project Management Body of Knowledge (PMBoK) for the production process. The development of the first S-101 cell, identified as 101BR00500912, was conducted within an isolated and controlled production database environment. This setup allowed for thorough validation and prototyping, ensuring the quality and integrity of the new chart without affecting existing S-57 ENC production.
Transition and Future Outlook
The introduction of the S-101 ENC initiates a 'dual-fuel period,' during which the CHM will produce charts simultaneously in both S-57 and S-101 formats. This strategy ensures operational continuity and prevents any negative impact on mariners who still rely on systems compatible only with the S-57 standard.
Looking ahead, the experience gained from the Port of Suape project will serve as a foundation for broader implementation. Starting in 2026, the CHM plans to expand S-101 production to other strategic areas along the Brazilian coast. This initiative not only enhances navigational safety but also solidifies Brazil's position within the international hydrographic community, marking its definitive entry into the global transition towards the S-100 framework.
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