National Hydro Network 1:50,000
- Diego Cesa de Meira (Unlicensed)
Description
The National Hydro Network (NHN) focuses on providing a quality geometric description and a set of basic attributes describing Canada's inland surface waters. It provides geospatial digital data compliant with the NHN Standard such as lakes, reservoirs, watercourses (rivers and streams), canals, islands, drainage linear network, toponyms or geographical names, constructions and obstacles related to surface waters, etc.
Originator
Canada Open Data
Use Cases
Source(s)
Description | Source | Format | Date | Update Frequency | Metadata | Cost | Link | Remarks |
|---|---|---|---|---|---|---|---|---|
National Hydro Network 1:50,000 | WMF | 2018 | On Going | Free | Download all SHP/GDB files in folders 01-11 |
Remarks
The most appropriate dataset to use for EGIS would be from WMS Web Service as it does not require periodic updates.
Process for EGIS integration
WMS Web Service:
WMS Web Service can be integrated directly into EGIS.
SHP/GDB File:
SHP/GDB file can be integrated directly into EGIS.
TC Smart Maps:
Not all GIS applications can consume KML file directly due to its unique data structures such as networklinks, folders, models etc.
Please contact Lawrence Chong, Digital Services Directorate for TC Smart Maps KML dataset and format translation.
TC Smart Maps KML link: \\tc.gc.ca\tcgis\GISData\Google Mashup\HydroNetwork-50K\HydroNetwork-50K.kml
Customization:
Schema transformation: As required
Denormalization: It is recommended to perform minimal generalization to improve display performance.
Value coding: Not required
Attribute renaming: As required to improve readability
Attribute removal: It is highly recommended as some fields are unnecessary, this will also reduce file size and improve performance
Geoenrichment: Feature symbolization is recommended to improve visualization.
Format translation: Not required
Language translation: French version available
Update frequency: As identified