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The S-100 framework is now operational
A significant step in the implementation of the S-100 ecosystem was officially achieved in January 2026, when the Phase 1 S-100 product specifications entered into force. Stakeholders can now access and use the operational version of these specifications in real-world environments.
Women in Hydrography: New Data Reveal Gains in Leadership, Gaps in Workforce Representation
The latest data on the number of men and women working in hydrography have been released. With 51 IHO Member States answering the EWH 2025 survey, the results reveal advancements in some areas but also challenges.
IHO Disclaimer – Integrated Platform Version
Version 2.0 – July 2025
Ex Abyssis ad Alta – IHO Award for Hydrographic Excellence 2025
With a hydrographic career spanning over 25 years, the winner of this year’s Ex Abyssis Ad Alta Award has consistently demonstrated technical expertise, and an unwavering commitment to innovation in hydrography in support of safer and smarter navigation. He has also been a central force in moving the S-100 implementation forward.
Side Event: Global Ocean Data Sharing
A Key Enabler to Inform Science, Management, and Policy Development This high-level networking event will discuss why and how the public and private sectors can contribute ocean depth data.
Terms and Definitions
Updated on 14 May 2025
MSDIWG
SAIHC MSDI Seabed2030 VTC Meeting 2nd February 2021
Navigational Products
Introduction The S-100 Standard is a framework document that is intended for the development of digital products and services for hydrographic, maritime and GIS communities. It comprises multiple parts that are based on the geospatial standards developed by the International Organization for Standardization, Technical Committee 211 (ISO/TC211). An S-100 based Product Specification defines a data product, and usually includes additional resources such as a machine readable Feature Catalogue and Portrayal Catalogue, a data Encoding Guide and at least one data encoding format. A guidance document S-97 for developing Product Specifications can be downloaded from the GI registry. A list of known IHO S-100 based product specifications is provided here.
2nd UN Ocean Conference Lisbon
The Stockholm Environment Institute and the IHO are organizing a side-event on seabed mapping & marine data to support multifunctional spatial planning at the UN Ocean Conference in Lisbon. Organized in partnership with IOC-UNESCO, Sweden, the African Union Commission, and the United Kingdom, the event will look at the role of marine data to inform the competing needs of a broad range of ocean stakeholders. Participants will discuss activities, innovations and challenges, as well as technologies and monitoring systems. It will examine how improved data could inform the organization of the marine space to ensure a more sustainable use of ecosystems.
