Date modified: 2024-08-09
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GEO.ca Initiatives GeoBase Canadian Hydrospatial Network (CHN)
Canada’s new, higher-resolution hydrographic network.
The Canadian Hydrospatial Network (CHN) is an advancement in hydrographic data for Canada, enhancing the resolution, accuracy, and alignment to elevation for hydrological modelling. It is a product developed by the Canada Centre for Mapping and Earth Observation (CCMEO) at Natural Resources Canada (NRCan).
The CHN offers many improvements for hydrological modelling. It is high resolution (where possible) and aligned to elevation making it invaluable for analyses such as:
The CHN provides analysis-ready data to support decision-making processes and the development of evidence-based policy. Its streamlined production processes and collaborative approach foster innovation and facilitate interdisciplinary research in hydrography and related fields.
Compared to its predecessor, the National Hydrographic Network (NHN), the CHN has several improvements:
Access the metadata and download the available datasets.
View and explore a map of the network that includes waterbodies, catchments, and flow.
The development of the CHN is an ongoing process, with a commitment to continual improvement. Future releases will include additional watersheds and regions. Technological advancements and new high-resolution data will be integrated into the CHN to stay at the forefront of hydrospatial network design and production in Canada.
Ongoing efforts will maintain data quality, improve access for users, and will advance hydrographic data standards in Canada and provide Canadians with current, open, and freely available hydrospatial information.
Find more information from Natural Resources Canada about the Canadian Hydrospatial Network and Hydrographic Networks in Canada.
If you have any questions, please contact:
geoinfo@nrcan-rncan.gc.ca
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Canada Centre for Mapping and Earth Observation
Natural Resources Canada
Government of Canada
geo@nrcan-rncan.gc.ca
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