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Understanding sea-level rise - improving predictions through studying the shape of the seabed
In many places around the world, data clearly shows the level of the sea is rising. In low lying coastal areas, even small increases when coupled with high tides and storm surges have had devastating consequences, such as altering coastlines, impacting offshore energy infrastructure and displacing populations. A better understanding of factors influencing sea level is vital in order to prepare for and mitigate its impacts.
UNCLOS and the international legal framework suitability for ocean activities discussed at ABLOS Conference
The 12th IHO-IAG ABLOS conference brought together participants from all over the world to discuss how the global regulatory framework and the United Nations Convention on the Law of the Sea (UNCLOS) addresses some of today's most pressing ocean-related challenges. Organised in partnership with the Qatari Standing Committee of the Convention on the Law of the Sea, the 280 participants learned about achievements of UNCLOS, challenges it faces in today’s international context, and gaps to be addressed. One question which emerged repeatedly was whether the convention was flexible enough to address modern issues.
Major Milestone Achieved in Transition to Smart Navigation with Operational Editions of S-100 Standards
In a historic breakthrough for digital navigation, the International Hydrographic Organization (IHO) Member States have adopted the first set of operational standards within the S-100 framework. This decision paves the way for Coastal States to offer official products and services based on these standards, significantly advancing the field of maritime navigation. The adoption also has profound implications for ocean data collection and sea surveys, as these new products will require enhanced data in order to realize their full potential.
Global hydrographic community to gather in Monaco for pivotal International Hydrographic Organization Assembly
Government representatives, maritime authorities, international organizations, and industry leaders from across the world will gather in Monaco from 20 to 23 April 2026 for the Assembly of the International Hydrographic Organization (IHO), the principal global forum for decisions on hydrography, seabed mapping, and maritime data standards.
Funded Opportunities for Training & Sea Survey Experience
As part of its ongoing commitment to strengthening hydrographic capacity worldwide, the IHO is pleased to share that several fully-funded opportunities for training and hands-on survey experience are currently open for applications, including a call to participate in a trans-Atlantic hydrographic survey.
From ocean mapping to Argo floats: how are we learning about the changing ocean?
Better ocean data can be used to inform a variety of decisions from storm preparedness to seaweed farming. As part of the Monaco Ocean Week, the IHO hosted an event which provided an overview of some of the work being done to increase our knowledge of the ocean, from Prince Albert I of Monaco’s original idea of ocean mapping to the Argo programme, an exciting, global multidisciplinary project.
What is progress with crowd-sourced depth data around the world?
The Crowdsourced Bathymetry Working Group met last week to discuss progress on an IHO-led citizen science initiative to collect seafloor depth data. Discussions focused on updating guidance and learning about progress from some of the first trial projects around the world.
Women who belong in the official history of the Sea
The BGR provides high resolution data for the Pacific and Indian Oceans
The German Federal Institute for Geosciences and Natural Resources (BGR) is participating in the IHO-led efforts to increase knowledge of the ocean and has shared high resolution depth data for the German contract areas for deep-sea exploration granted by the International Seabed Authority (ISA) in the Pacific and Indian Oceans. The BGR provided gridded data for 85.000 km² at a resolution of 120 x 120 meters.
