
Navigate the Iroise Sea with precision using this tidal currents atlas, covering the area from Vierge Island to Penmarc’h Point. Essential for safe sailing, fishing, or environmental studies.
Data sheet
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Navigate the Iroise Sea with Unmatched Precision
This digital tidal currents atlas is the definitive tool for professionals operating in the Iroise Sea, offering hourly current data for spring and neap tides across the region from Vierge Island to Penmarc’h Point. Engineered for commercial mariners, it combines decades of hydrographic expertise with cutting-edge hydrodynamic modeling to deliver actionable insights for safe and efficient navigation. Whether you're piloting a cargo vessel, managing port operations, or conducting environmental assessments, this atlas provides the critical data needed to navigate one of Europe’s most dynamic maritime environments.
Data-Driven Decision Making for Maritime Operations
Built on France’s most comprehensive tidal and bathymetric datasets, this atlas visualizes current fields at every hour of the tidal cycle, accounting for variations in spring and neap conditions. The 2026 edition integrates the latest hydrographic surveys, ensuring accuracy for professional applications. With a license covering up to 5 workstations and free updates for one year, it’s designed to seamlessly integrate into fleet or office workflows, reducing operational risks and optimizing route planning.
Versatile Applications for Industry and Science
Beyond navigation, this atlas supports a wide range of professional needs, from environmental impact studies to port infrastructure planning. Its high-resolution current data is essential for assessing tidal influences on marine construction projects, waste discharge zones, and coastal erosion patterns. Fishing fleets rely on it to identify optimal trawling areas, while researchers use it to monitor marine biodiversity and hydrodynamic changes. Delivered in a secure digital PDF format, it ensures instant access and compatibility with all major navigation systems.
This digital tidal currents atlas provides hourly current data for the Iroise Sea, covering the area from Vierge Island to Penmarc’h Point. Available in French as a PDF, it includes visual representations of tidal currents for both spring and neap tides, based on advanced hydrodynamic modeling. The 2026 edition is licensed for use on up to 5 workstations, with free updates for one year, ensuring access to the latest hydrographic data.
With over 300 years of expertise in hydrography and oceanography, this organization is France’s leading authority on maritime data. Specializing in tidal modeling, bathymetric surveys, and nautical charting, it provides critical resources for commercial shipping, defense, and environmental management. Its products are trusted by professionals worldwide for their accuracy, reliability, and integration of the latest scientific advancements.
It covers the Iroise Sea region, from Vierge Island to the Penmarc'h headland on the Atlantic coast of France.
Tidal currents are shown as hourly fields during average spring and neap tides, based on hydrodynamic modeling and bathymetric data.
Yes, it is designed for applications such as marine discharge projects, port developments, and other environmental assessments.
The license allows installation on up to 5 computers. Additional licenses are required for every 5 extra devices.
Updates are delivered automatically at no extra cost if a new version is released within one year of purchase.
The atlas is provided in French.
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