Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement

Description

A vector representation of stream networks is a crucial dataset for the modelling the surface water and groundwater components of the hydrologic cycle. For many usages a crucial attribute of the drainage network is a digital topology and hierarchal stream order attribute (e.g., Strahler stream order). In Canada jurisdictional stream networks are available for the provinces and territories and nationally for Canada in the National Hydrological Network (NHN) dataset. Unfortunately, the NHN data lacks the same topological and attribute information that is available for numerous provinces due to standardization for the entire country. For Canada1Water it was also necessary to have a harmonized dataset with the United States, for both the southern transboundary watersheds and the Alaskan watersheds. This report documents the processes completed to upgrade the topological and graph network support for NHN and provide continuous connectivity with US datasets. It also highlights and corrects a number of stream density and stream order issues that occur within Canada across provincial and territorial borders and NTS tiles. All vector processing was completed in RivEX software extension for ArcMap. Following complete topological correction stream classification was assigned and a table of the node graph network developed. Additional work was then completed to normalize stream density particularly amongst low-order streams between British Columbia and the Yukon and amongst local NTS tiles in Quebec and Ontario. Corrected NHN Strahler stream order assignment was validated against a number of provincial and watershed datasets, all of which already have Strahler stream order attributed. These datasets are the same underlying digitized vector data, so there are no differences in node or polyline positions. Strahler stream order assignment validation was only done by visual comparison as due to differences in vector segments a statistical comparison is complicated. The transboundary integrated C1W stream network with complete classification provides a seamless national dataset to support transdisciplinary studies (fisheries, wildlife, health, pesticide and nutrient issues, mining impact, ecosystem restoration, numeric modelling) that involve a knowledge of stream distribution and ranking.

Resources

Name Format Description Link
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - French HTML https://doi.org/10.23687/1c0e8a4e-952c-cd7a-1be8-29691aea2cd1
Classification Canada1Water du réseau hydrographique national : ordre des cours d'eau et affinement des graphiques - Anglais HTML https://doi.org/10.23687/1c0e8a4e-952c-cd7a-1be8-29691aea2cd1
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - associated open file - English PDF https://doi.org/10.4095/pyc51h1rm4
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - associated open file - French PDF https://doi.org/10.4095/pyc51h1rm4
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Arctic model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_arctic.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Arctic model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_arctic.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Atlantic model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_atlantic.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Atlantic model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_atlantic.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Baffin model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_baffin.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Baffin model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_baffin.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Hudson model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_hudson.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Hudson model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_hudson.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Islands model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_islands.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Islands model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_islands.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the MacKenzie model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_mackenzie.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the MacKenzie model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_mackenzie.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Nelson model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_nelson.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Nelson model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_nelson.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Pacific model - French Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_pacific.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - download of the Pacific model - English Unknown https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_NHN_NLFLOW_Strahler_pacific.zip
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - Diplay of data according to the Strahler index - English PNG https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_nhn_strahler_symb_en.png
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - Diplay of data according to the Strahler index - French PNG https://ftp.maps.canada.ca/pub/nrcan_rncan/Hydrography_Hydrographie/canada1water/nhn-rhn/data-donnees/c1w_nhn_strahler_symb_fr.png
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - ESRI Rest Service - English Ersi REST https://maps-cartes.services.geo.ca/server_serveur/rest/services/NRCan/c1w_stream_index_en/MapServer/0
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - ESRI Rest Service - French Ersi REST https://maps-cartes.services.geo.ca/server_serveur/rest/services/NRCan/c1w_stream_index_fr/MapServer/0
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - WMS Service - English WMS https://maps-cartes.services.geo.ca/server_serveur/services/NRCan/c1w_stream_index_en/MapServer/WMSServer?request=GetCapabilities&service=WMS
Canada1Water Classification of the National Hydro Network: Stream Order and Graph Refinement - WMS Service - French WMS https://maps-cartes.services.geo.ca/server_serveur/services/NRCan/c1w_stream_index_fr/MapServer/WMSServer?request=GetCapabilities&service=WMS

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