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Navigational products, services and information to ensure the safety of mariners.

On social media

Services and information

Economic benefits of hydrography

Offshore gas and oil sites, expanding navigation and mapping seabeds for renewable energy.

Canadian Hydrographic Service and the law

Legislation, regulation and enforcement of hydrography and oceans science.

Defining Canada's extended continental shelf

Canada's program for extending the continental shelf and defining our maritime boundaries.

Marine geodetic (surveying) advice and expertise

Nautical geodesy, maritime limits and boundaries, calculations for charts, consultations and expert testimony.

Standards for developers

Standards followed by the Canadian Hydrographic Service for developing nautical products.

Canadian Hydrographic Service collaborations

Work with other government agencies, international partners and private industry partners.

Acquiring hydrographic data

Measuring depths, heights, water levels and vertical datum for nautical publications.

Data processing techniques

How we convert raw data, use processing software and extract information.

Data management

Network of systems used to manage, process data, store, deliver services and products.

Advisory Committee on Undersea Feature Names

About, and how to submit a naming proposal for undersea and surface maritime features.


Merging electronic marine information on ships and on shore to improve safe navigation.

Hydrography and charting under Canada's Oceans Protection Plan

About community hydrography and achievements under the Oceans Protection Plan.


The following videos explore how hydrography is used to uncover potential hazards, chart underwater landscapes, and ensure safe and efficient navigation in Canadian waters.

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