OTTAWA – In celebration of United Nations World Water Day this Saturday (March 22), National Hydro Network (NHN) data for 839 drainage areas across Canada are now available without cost or restriction and under common licensing terms.
The NHN is a new dataset that describes and models features of the inland surface-water system of Canada. The NHN enables water flow analysis that can aid in the management of watersheds and the species that live in them.
In emergency situations such as flooding or toxic spills, NHN data can be used to monitor conditions and to assist decision-making processes to minimize flood damage or optimize control of a spill. For planning, the NHN can be used to decide where to most effectively place a dam or power plant. NHN data can also be an important tool in managing and monitoring drinking water and fresh water supplies.
The NHN is represented by geospatial data describing:
Also available without cost or restrictions and under common licensing terms at the GeoBase Web site are:
NHN data can be integrated and combined with other geospatial data such as the GeoBase National Road Network, Orthoimagery, Geographical Names, Geopolitical Boundaries, Geodetic Network Data, and Digital Elevation Data.