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IHO and CIESM renew their cooperation

IHO and CIESM have renewed their Scientific Cooperation Agreement for the next 4 years. This will provide a framework for active cooperation between the two intergovernmental organizations dedicated to marine science.

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IHO and CIESM renew their cooperation

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Audience with HSH Prince Albert II & priorities for the new Directing Committee

The new IHO Directing Committee was presented to HSH Prince Albert II of Monaco on Tuesday September 8th 2020.

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Audience with HSH Prince Albert II & priorities for the new Directing Committee

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World Hydrography Day 2026: Transforming How Ocean Data Is Shared

Every year on 21 June, the International Hydrographic Organization (IHO) and its Member States celebrate World Hydrography Day, highlighting the vital role hydrography plays in improving our understanding of the ocean and supporting its safe, sustainable, and productive use.

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World Hydrography Day 2026: Transforming How Ocean Data Is Shared

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Historic Outcomes at 2026 Assembly: New Leadership, New Structures, and Global Standards

Representatives of the 104 IHO Member States reached decisions which will change the future of the organization during the 4th session of the Assembly. This triennial event held in Monaco saw crucial advancements in hydrography and international collaboration including the creation of a new entity, a new office, as well as new leaders.

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Historic Outcomes at 2026 Assembly: New Leadership, New Structures, and Global Standards

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ARHC and PAME Issue Joint Advisory Warning of Navigational Risks in a Rapidly Changing Arctic

The Arctic Regional Hydrographic Commission (ARHC) and the Arctic Council Working Group on the Protection of the Arctic Marine Environment (PAME) have officially released a joint advisory titled "Caution Required When Navigating in Arctic Waters.".

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ARHC and PAME Issue Joint Advisory Warning of Navigational Risks in a Rapidly Changing Arctic

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Mapping the Future: Fiji Hosts Pivotal Meetings on Ocean Mapping and Hydrography

Suva & Nadi, Fiji — November 2024 Fiji became the epicenter of global ocean mapping, hydrographic collaboration and geospatial information management as it hosted a series of landmark meetings with a strong focus on Pacific engagement. From the 41st Meeting of the GEBCO Guiding Committee (GGC41) and the 6th Pacific Ocean Mapping Meeting to the subsequent UN workshops on geospatial frameworks and sustainable development, the events underscored the critical role of ocean and data governance for Pacific Island countries and territories.

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Mapping the Future: Fiji Hosts Pivotal Meetings on Ocean Mapping and Hydrography

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The digital twin of the navigable waters: paving the way for e-navigation

The maritime domain is in the midst of radical changes which will propel navigation forward and open a realm of new possibilities. These transformations will pave the way for e-navigation and autonomous shipping aiming to improve safety, efficiency and sustainable vessel operations. At the core of these transformations is the digital twin of navigable waters.

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The digital twin of the navigable waters: paving the way for e-navigation

News

Guidance on use of satellites to gather depth data

The IHO has published the first “Satellite-Derived Bathymetry Best Practice Guide” for the hydrographic community. The new document provides an overview of methods and factors to consider when applying SDB to map shallow coastal environments.

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Guidance on use of satellites to gather depth data

News

New IHO Director presents his background & future objectives

Following the elections during the 3rd session of the IHO Assembly, Dr. John Nyberg has formally taken up his role as IHO Director at the Secretariat in Monaco. In order to get to know him better, we asked him questions about his background and aspirations for his tenure at the IHO Secretariat.

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New IHO Director presents his background & future objectives