ef5c2752-1d6f-11ed-93b3-0242ac13000b eng utf8 dataset Natural Resources Canada pointOfContact Natural Resources Canada author 2023-04-24T16:53:24Z ISO 19115:2003 - Geographic information - Metadata ISO 19115:2003 4326 EPSG 6.11 National Hydro Network NHN Index Description 2022-08-16T14:30:00Z publication 1.2 mapDigital The National Hydro Network (NHN) product is acessible on the Open Government of Canada Portal (open.canada.ca/en). Each NHN dataset corresponds to a NHN Work Unit Limit which delimits the territory covered by the dataset. This limit makes up the territorial divisions from which are produced and distributed NHN datasets. The NHN Index is a national index that groups together all “NHN Work Unit Limits” at a specific time “T” for the entire Canadian landmass. This index is updated and published at interval on the GeoBase portal according to a “per release” approach, synchronized with NHN data publication. Update and publication frequency is determined according to NHN data publication. The NHN Index was first published March 20, 2008. Because it is generated at a specific time “T” and comprises all “NHN Work Unit Limits in the country, those limits are thus at different editing stages, where some have been fully edited and others partially or not at all. Moreover, it is important to realize that “NHN Work Unit Limits” will be modified over time, for example when new more up-to-date source data become available. The NHN Index is distributed in SHAPE (ESRITM) format. This document thus provides its description for this format. In particular, it describes file names, features and attributes that make up the index. 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. The best available federal and provincial data are used for its production, which is done jointly by the federal and interested provincial and territorial partners. The NHN is created from existing data at the 1:50 000 scale or better. The NHN data have a great potential for analysis, cartographic representation and display and will serve as base data in many applications. The NHN Work Unit Limits were created based on Water Survey of Canada Sub-Sub-Drainage Area. completed Natural Resources Canada originator unknown https://canwinmap.ad.umanitoba.ca/uploaded/thumbs/document-ef5c2752-1d6f-11ed-93b3-0242ac13000b-thumb-0cd6da7f-1ad1-4389-a68a-904f2711a914.png?v=be9b6359 Thumbnail for 'National Hydro Network NHN Index Description' image/png ESRI Shapefile 1.0 Cartography Coastline Drainage Earth Sciences GeoBase Geographic Information Systems Geographic data Geography Hydro Hydrographic Network Hydrography Hydrology Lakes NHN Natural resources Network Rivers Surface water Water Watercourses Watersheds theme Canada place license Open Government Licence 2.0 - Canada (OGL-Canada-2.0): You are free to: Copy, modify, publish, translate, adapt, distribute or otherwise use the Information in any medium, mode or format for any lawful purpose. (https://open.canada.ca/en/open-government-licence-canada) patent Open Government Licence - Canada (https://open.canada.ca/en/open-government-licence-canada) vector eng utf8 geoscientificInformation -145.7833688 -52.5 41.3776086 83.5 Source: https://open.canada.ca/data/en/dataset/a4b190fe-e090-4e6d-881e-b87956c07977 https://canwinmap.ad.umanitoba.ca/documents/135 WWW:LINK-1.0-http--link Online link to the 'National Hydro Network NHN Index Description' description on GeoNode https://canwinmap.ad.umanitoba.ca/documents/135/download WWW:DOWNLOAD-1.0-http--download National Hydro Network NHN Index Description.pdf National Hydro Network NHN Index Description (Hosted Document Format) https://canwinmap.ad.umanitoba.ca/uploaded/thumbs/document-ef5c2752-1d6f-11ed-93b3-0242ac13000b-thumb-0cd6da7f-1ad1-4389-a68a-904f2711a914.png WWW:DOWNLOAD-1.0-http--download National Hydro Network NHN Index Description.png National Hydro Network NHN Index Description (Thumbnail Format) dataset