UPSTREAM — ONTARIO: DATA AND THIRD-PARTY NOTICES This interactive atlas incorporates a transformed regional subset of HydroRIVERS version 1.0 and Natural Earth geography. River data have been clipped to Ontario, reprojected, simplified, routed and annotated for this visualization. River-system colors, presentation and calculated network distances are project transformations. The upstream providers have not endorsed or independently verified those changes. The data files are components of this atlas, not a distribution of the original continental source datasets. HYDRORIVERS / HYDROSHEDS HydroRIVERS v1.0: Lehner, B. and Grill, G. (2013), Global river hydrography and network routing: baseline data and new approaches to study the world's large river systems. Hydrological Processes, 27(15), 2171–2186. https://doi.org/10.1002/hyp.9740 https://www.hydrosheds.org/products/hydrorivers HydroRIVERS is provided under the HydroSHEDS version 1 license agreement. The governing license, redistribution conditions, attribution requirements and disclaimers are preserved in vendor/HydroSHEDS-LICENSE.txt, extracted from Appendix A and its exhibits in the official HydroSHEDS Technical Documentation: https://data.hydrosheds.org/file/technical-documentation/HydroSHEDS_TechDoc_v1_4.pdf Required HydroSHEDS attribution: This product Upstream — Ontario incorporates data from the HydroSHEDS version 1 database which is © World Wildlife Fund, Inc. (2006-2022) and has been used herein under license. WWF has not evaluated the data as altered and incorporated within Upstream — Ontario, and therefore gives no warranty regarding its accuracy, completeness, currency or suitability for any particular purpose. Portions of the HydroSHEDS v1 database incorporate data which are the intellectual property rights of © USGS (2006-2008), NASA (2000-2005), ESRI (1992-1998), CIAT (2004-2006), UNEP-WCMC (1993), WWF (2004), Commonwealth of Australia (2007), and Her Royal Majesty and the British Crown and are used under license. The HydroSHEDS v1 database and more information are available at https://www.hydrosheds.org. HydroSHEDS scientific citation: Lehner, B., Verdin, K. and Jarvis, A. (2008), New global hydrography derived from spaceborne elevation data. Eos, Transactions, AGU, 89(10), 93–94. HYDROBASINS / HYDROSHEDS — INVISIBLE CATCHMENT PICKING HydroBASINS level 12 polygons are used as an invisible layer for hover and click detection. HydroRIVERS HYBAS_L12 values are joined directly to HydroBASINS HYBAS_ID identities. The displayed drainage context is derived from those catchments and the mapped downstream network; it does not assign an official stream name to every small channel or delineate every small creek catchment. https://www.hydrosheds.org/products/hydrobasins HydroBASINS: Lehner, B. and Grill, G. (2013), HydroSHEDS / WWF. The scientific citation and required HydroSHEDS attribution above also apply. Applicable license terms are preserved in vendor/HydroSHEDS-LICENSE.txt. Supplementary river-name continuity uses existing connected map pieces between verified anchors of the same official named feature. It adds no invented river geometry and leaves original name matches, animation clocks and totals intact. NATURAL EARTH Base boundaries, land, lakes and river-name placement derive from Natural Earth 1:10m map data, which Natural Earth provides in the public domain. Detailed Toronto shoreline display geometry uses OHN Waterbody data as described below. https://www.naturalearthdata.com/ https://www.naturalearthdata.com/about/terms-of-use/ MP4 MUXER The video exporter uses mp4-muxer version 5.2.2 by its upstream contributors, under the MIT license. Its copyright and license text are preserved in vendor/mp4-muxer-LICENSE.txt. https://github.com/Vanilagy/mp4-muxer SCOPE OF THIS NOTICE Third-party data and software retain their respective ownership and terms. This notice grants no license to this project's original source code and does not replace or expand the upstream data or software license agreements. TORONTO WATERSHED BOUNDARIES — TRCA The Toronto-area watershed and waterfront drainage boundaries are derived from TRCA's Watersheds_TRCA polygon layer, reprojected for the atlas. These are complete watershed polygons, not buffers constructed from the displayed stream lines. https://services1.arcgis.com/d0ZCwU7eGKVeNiEE/arcgis/rest/services/Watersheds_TRCA/FeatureServer/0 Contains information made available under the Toronto and Region Conservation Authority (TRCA)’s Open Data Licence v1.0 https://trca.ca/about/open-data-licence/ River lines and watershed boundaries come from independent sources and may differ slightly along their edges. The providers have not endorsed this atlas. TORONTO LOCAL WATERCOURSES — ONTARIO HYDRO NETWORK Additional Toronto creek lines in the interactive map are derived from Ontario Hydro Network (OHN) Watercourse data, under the Open Government Licence – Ontario. Contains information licensed under the Open Government Licence – Ontario. https://data.ontario.ca/dataset/ontario-hydro-network-ohn-watercourse https://www.ontario.ca/page/open-government-licence-ontario These local lines provide reference detail. They are not added to the HydroRIVERS network totals or used to invent upstream animation distances. Explore also uses named OHN Watercourse features around the Greater Toronto Area and Lake Simcoe. OHN GEL_NAME_IDENT values join directly to Geographic Names Ontario FEATURE_IDENT identities. The live reference layer preserves source type and verified-flow attributes; virtual lake connectors are not shown as named surface streams. Official line names are separate from the connected upstream drainage networks selected in the map. Tributary membership does not change a tributary's own name. Neither layer changes the film geometry, upstream distances or provincial network totals. HOLLAND RIVER DRAINAGE NETWORKS — LSRCA The East and West Holland subwatershed boundaries and detailed stream network derive from Lake Simcoe Region Conservation Authority's Open Data service. The combined Holland basin is the union of those two official subwatersheds. Source stream names and subwatershed membership are retained separately from Geographic Names Ontario channel identities. This detail is used only in Explore. https://gis.lsrca.on.ca/gis/rest/services/OpenData/MapServer/31 https://gis.lsrca.on.ca/gis/rest/services/OpenData/MapServer/8 https://lsrca.on.ca/index.php/home/open-data/ Contains Information made available under Lake Simcoe Region Conservation Authority Open Data Licence v1.0. TORONTO SHORELINE — ONTARIO HYDRO NETWORK WATERBODY Detailed Lake Ontario shoreline geometry in the Toronto area is derived from Ontario Hydro Network (OHN) Waterbody polygons. The local display retains island holes and leaves the river network and official TRCA drainage boundaries unchanged. https://data.ontario.ca/dataset/ontario-hydro-network-ohn-waterbody https://ws.lioservices.lrc.gov.on.ca/arcgis2/rest/services/LIO_OPEN_DATA/LIO_Open01/MapServer/25 https://www.ontario.ca/page/open-government-licence-ontario Contains information licensed under the Open Government Licence – Ontario. OFFICIAL WATERCOURSE NAMES — GEOGRAPHIC NAMES ONTARIO River and creek names are matched to the Geographic Names Ontario named-feature extents, published by Land Information Ontario under the Open Government Licence – Ontario. Named extents are used as evidence for attribution; they do not replace the mapped river geometry or the upstream-distance calculation. https://ws.lioservices.lrc.gov.on.ca/arcgis2/rest/services/LIO_OPEN_DATA/LIO_Open09/MapServer/36 https://www.arcgis.com/home/item.html?id=5889a694950944a5b55f1b4cd3e242ac https://www.ontario.ca/page/open-government-licence-ontario Contains information licensed under the Open Government Licence – Ontario.