Ontario Hydro Network (OHN) - Shoreline

This feature class contains the watercourse line geometry for the New Brunswick Hydrographic Network. It contains observed streams as well as inferred centrelines representing an approximate centreline path through waterbodies and around islands within the waterbodies. The data has been collected for the entire province from a period from 2003 to present and is being continuously updated. The first release of the NBHN was in January of 2012.  The metadata document can be downloaded from https://nbdnr.maps.arcgis.com/sharing/rest/content/items/d5f765b86027426c90c97c820c1a3309/data Classe d’entités comprenant des données sur les cours d’eau en géométrie de ligne pour le Réseau hydrographique du Nouveau-Brunswick (RHNB). Elle comprend les cours d’eau observés ainsi que les lignes médianes dérivées qui représentent une voie médiane approximative dans les plans d’eau et autour des îles qui se trouvent dans les plans d’eau. Ces données sont recueillies pour l’ensemble de la province depuis 2003 et sont mises à jour de façon continue. Les données du RHNB ont été diffusées pour la première fois en janvier 2012.  Le document de métadonnées peut être téléchargé à partir de https://nbdnr.maps.arcgis.com/sharing/rest/content/items/d5f765b86027426c90c97c820c1a3309/data

Global coastline boundaries at 1:10 million scale from Natural Earth, representing the boundary between land and sea. Derived from a combination of vector and raster sources and hand-edited for cartographic accuracy. Use this layer as a base map reference for continental and global-scale maps, coastal analysis, maritime boundary studies, and environmental assessments worldwide. No additional information provided.

Natural Earth admin 0 boundary lines maritime indicator at 1:10 million scale: public domain cartographic vector data built to make small-scale world, regional and country maps.

Global river network and lake centerlines at 1:10 million scale from Natural Earth, derived primarily from World Data Bank 2. Includes major rivers worldwide with scale rank attributes for cartographic filtering. Use this layer for river network mapping, hydrological analysis, catchment studies, and cartographic base mapping at global and continental scales. No additional information provided.

The rivers of North America dataset is derived from the World Wildlife Fund's (WWF) HydroSHEDS drainage direction layer and a stream network layer. The source of the drainage direction layer was the 15-second Digital Elevation Model (DEM) from NASA's Shuttle Radar Topographic Mission (SRTM). The raster stream network was determined by using the HydroSHEDS flow accumulation grid, with a threshold of about 1000 km² upstream area. The stream network dataset consists of the following information:- unique arc identifier (ARCID), the origin node of each arc in the network (FROM_NODE), the destination of each arc in the network (TO_NODE), the Strahler stream order of each arc in the network (STRAHLER), numerical code and name of the major basin that the arc falls within (MAJ_BAS and MAJ_NAME); - area of the major basin in square km that the arc falls within (MAJ_AREA); - numerical code and name of the sub-basin that the arc falls within (SUB_BAS and SUB_NAME); - area of the sub-basin in square km that the arc falls within (SUB_AREA); - numerical code of the sub-basin towards which the sub-basin flows that the arc falls within (TO_SUBBAS) (the codes -888 and -999 have been assigned respectively to internal sub-basins and to sub-basins draining into the sea). **Data revision:** 2014-03-05 **Supplemental Information:** This dataset is developed as part of a GIS-based information system on water resources for North America. It has been published in the framework of the AQUASTAT - programme of the Land and Water Division of the Food and Agriculture Organization of the United Nations. The attributes table now includes a field named "Regime" with tentative classification of perennial ("P") and intermittent ("I") streams. **Time coverage**: 2014 **Contact points:** Resource Contact: [Jippe Hoogeveen](mailto:jippe.hoogeveen@fao.org) Resource Contact: [Livia Peiser](mailto:livia.peiser@fao.org) Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) **Data lineage:** The linework of the map was obtained by converting the stream network to a feature dataset with the Hydrology toolset in ESRI ArcGIS.The Flow Direction and Stream Order grids were derived from hydrologically corrected elevation data with a resolution of 15 arc-seconds.The elevation dataset was part of a mapping product, HydroSHEDS, developed by the Conservation Science Program of World Wildlife Fund.Original input data had been obtained during NASA's Shuttle Radar Topography Mission (SRTM). **Resource constraints:** This work is made available under the Creative Commons Attribution 4.0 International licence (CC-BY-4.0) **Online resources:** Download - Rivers of Nortn America (ESRI shapefile) Technical information on the data source More updated information on HydroSHEDS 2025

To facilitate the development of offshore renewable energy installations, the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Ireland defined two boundary lines between Northern Ireland and Ireland. This is to clarify responsibilities relating to the licensing, construction, and operation of offshore renewable energy installations. This shapefile provides the latitude and longitude of the points for the line North and the line East, extending from the coast to the 12 NM limit. The north line and east line were defined and agreed in an MoU signed in 2011 between UK and Ireland Governments for the lease of the seabed for the development of offshore renewable energy installations.