The Canadian Hydrographic Service offers navigational products, services and info to ensure the safety of mariners.

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Services and information

Economic Benefits

Learn about exploring offshore gas and oil sites, expanding navigation routes and mapping seabeds for renewable energy.

Legal aspects of CHS

Find federal statutes, legislation, charts, conventions and regulations related to Canadian Hydrography Services.

Sovereignty and UNCLOS

Technical support for defining borders like maritime boundaries and the limits of Canada's extended continental shelf.

Marine Geodetic advice and expertise

Read about the measurement and representation of Earth. Includes maritime limits and boundaries, surveys and datum.


Find standards for electronic chart systems and conventions as outlined by the International Hydrographic Organization.


Work with government, industry and international partners on emergency response and preparedness projects.

Data Acquisition

Hydrographic surveys to create and update nautical charts and develop current tables and navigational publications.

Data processing techniques

How raw data from sonar readings and satellite imagery is used for nautical charts and other products.

Data Management

Learn about the network of systems used to manage and process data, and store and deliver services and products.

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