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Hydrography 10K HydroEdge NPCA
Conservation Ontario
Conservation Ontario — 2023-01-10 HydroEdge features are the network of drainage lines describing map hydrography in the ArcHydro based HydroNetwork10K database. HydroEdge simply represents 'flowlines' in the hydrography and is classified into two types: surface water lines, representing real channels, and virtual lines, carrying the commodity of water flow through culverts or double lined hydrography features. Shorelines are not included but are identified in the Waterbody feature class. HydroEdge is the edge component of the geometric network representing the 10K drainage network and is capable of traces and other network dependant analyses. HydroEdge is also populated with measure values making it capable of dynamic segmentation and linear referencing applications. HydroEdge relates in a one-to-one relationship with Catchment to break the landscape up into elementary drainage areas. Significant attributes include quaternary watershed categorization, Strahler stream ordering, and MNR fish habitat classification. https://gis.npca.ca:443/portal/apps/sites/admin/assets/templates/sites/defaultSite/resources/Open_Government_Licence_v2.pdf
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SpeciesOccurrences ELC 20221121
Conservation Ontario
Conservation Ontario — 2023-11-14 Relates to the 2020 NPCA Large Scale ELC Final Report - Mapping Methods and Field Verification Summary (November 22 2022)
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Hydrometric Stations NPCA
Conservation Ontario
Conservation Ontario — 2023-01-10 <div style='text-align:Left;'><div><div><p><span>The Hydrometric Stations feature class is an inventory of surface water gauges within the jurisdiction of the NPCA and monitor various aspects of water quantity. The stations are predominantly stream gauges and measure either river levels (stage) which can be converted to flow estimates with observed discharge curve ratings, flow, or both. The dataset also contains gauges on Lake Ontario and the Niagara for measurements on these waterbodies. The data comes from two sources, the Conservation Authority and Water Survey Canada, who have a partnership established to manage the integrated network for the Niagara Watershed. The gauge data is largely used in hydrology and hydraulic modelling exercises and flood forecasting and warning decision support.</span></p></div></div></div> https://gis.npca.ca:443/portal/apps/sites/admin/assets/templates/sites/defaultSite/resources/Open_Government_Licence_v2.pdf
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FLOWLINES Enhanced Local Feature Type Flowlines
Conservation Ontario
Conservation Ontario — 2022-10-05 The Contemporary Mapping of Watercourses dataset is a surface water inventory created in partnership and jointly owned by the Niagara Peninsula Conservation Authority and the Niagara Region. The dataset currently corresponds to the extent of the Regional Municipality of Niagara until such a time that NPCA can complete interpretation and development of the inventory throughout its watershed jurisdiction (large scale source geometry exists). The objective of this dataset is to provide a large scale (1:2000) inventory of hydrographic mapping of sufficient detail to support hydrology characterization work at a level that accounts for the influences of significant watercourse features, such as tile drains, municipal drains, roads and culverts, which exert a controlling influence on overland and near sub-surface flows. The Contemporary Mapping of Watercourses feature class is developed from hydrologically coded break lines (select point density) from a photogrammetric digital terrain model (2010 and 2013) that collectively provide a detailed representation of the drainage of the landscape. Each surface water segment is imbedded with information characterizing the physical and technical attributes associated with that hydrographic feature aiming to inform water resources management activities. Further, the Contemporary Mapping of Watercourses dataset provides a spatial framework with which to organize, manage and maintain Niagara’s hydrologic data. https://gis.npca.ca/portal/apps/sites/admin/assets/templates/sites/defaultSite/resources/Open_Government_Licence_v2.pdf
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Conservation Authority Trails NPCA
Conservation Ontario
Conservation Ontario — 2023-01-09 <div style='text-align:Left;'><div><div><p><span>Need Description</span></p></div></div></div> https://gis.npca.ca:443/portal/apps/sites/admin/assets/templates/sites/defaultSite/resources/Open_Government_Licence_v2.pdf
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HRWP Local Connectivity Wetland Wetland Top 50%
Conservation Ontario
Conservation Ontario — 2023-10-23 Modelled local connectivity represented by priority for providing local connectivity among wetland-wetland habitat patches. Local connectivity is based on the proximity and size of the patches. https://trca.ca/about/open-data-licence/
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HRWP Local Connectivity Forest Wetland
Conservation Ontario
Conservation Ontario — 2023-10-23 Modelled local connectivity represented by priority for providing local connectivity among forest-wetland habitat patches. Local connectivity is based on the proximity and size of the patches. Data Sources: TRCA natural cover, 2013 Last Updated: 2015 https://trca.ca/about/open-data-licence/
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SHORELINES Enhance Local Feature Type Shoreline
Conservation Ontario
Conservation Ontario — 2022-10-05 The Contemporary Mapping of Watercourses dataset is a surface water inventory created in partnership and jointly owned by the Niagara Peninsula Conservation Authority and the Niagara Region. The dataset currently corresponds to the extent of the Regional Municipality of Niagara until such a time that NPCA can complete interpretation and development of the inventory throughout its watershed jurisdiction (large scale source geometry exists). The objective of this dataset is to provide a large scale (1:2000) inventory of hydrographic mapping of sufficient detail to support hydrology characterization work at a level that accounts for the influences of significant watercourse features, such as tile drains, municipal drains, roads and culverts, which exert a controlling influence on overland and near sub-surface flows. The Contemporary Mapping of Watercourses feature class is developed from hydrologically coded break lines (select point density) from a photogrammetric digital terrain model (2010 and 2013) that collectively provide a detailed representation of the drainage of the landscape. Each surface water segment is imbedded with information characterizing the physical and technical attributes associated with that hydrographic feature aiming to inform water resources management activities. Further, the Contemporary Mapping of Watercourses dataset provides a spatial framework with which to organize, manage and maintain Niagara’s hydrologic data. https://gis.npca.ca/portal/apps/sites/admin/assets/templates/sites/defaultSite/resources/Open_Government_Licence_v2.pdf
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ESAs UnOfficial NPCA
Conservation Ontario
Conservation Ontario — 2023-01-09 <div style='text-align:Left;'><div><div><p><span>Environmentally Significant Areas (ESAs) are natural areas that have been largely identified as significant and worthy of protection based on three criteria (ecology, hydrology, and geology). Municipalities generally use ESAs as the policy by means to protect natural areas to meet th</span><span>ei</span><span>r requirements under the Provincial Planning Act and Provincial Policy Statement. In the Niagara Watershed (except for within the City of Hamilton) there is no defin</span><span>i</span><span>tive and spatially discrete inventory for natural heritage features with official ESA status, however there are several reports and documents with collections of natural heritage features that alude to ESA status. This feature class is a compilation of these available sources and forms an inventory for the Niagara Watershed of natural areas that are potential ESAs.</span></p></div></div></div> https://gis.npca.ca:443/portal/apps/sites/admin/assets/templates/sites/defaultSite/resources/Open_Government_Licence_v2.pdf
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Conservation Authority Boundaries
Conservation Ontario
Conservation Ontario — 2023-12-14 <p style='margin-top:0px; margin-bottom:1.5rem; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>Ontarians may need to determine their regional Conservation Authority when attempting to acquire a building permit, access regional natural area or inquire about Conservation Authority events, practices and resources. Conservation Ontario has developed this layer to enable members of the public to easily determine their regional Conservation Authority and to visualize all 36 Conservation Authorities within one layer.</p><p style='margin-top:0px; margin-bottom:1.5rem; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>Note:</p><p style='margin-top:0px; margin-bottom:1.5rem; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>This layer was updated in December 2023</p>
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ELC 2020 NPCA
Conservation Ontario
Conservation Ontario — 2023-11-14 Relates to the 2020 NPCA Large Scale ELC Final Report - Mapping Methods and Field Verification Summary (November 22 2022)
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Municipal
Conservation Ontario
Conservation Ontario — 2019-10-18
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CCWP Watercourse
Conservation Ontario
Conservation Ontario — 2021-03-22 TRCA watercourse layer https://trca.ca/about/open-data-licence/
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CCWP Wetlands
Conservation Ontario
Conservation Ontario — 2021-03-22 <div style='text-align:Left;'><div><div><p><span>The Wetland Data is a combination of the MNRF Wetlands (detailed below) and the ELC data (from terrestrial field inventory). It has been further refined using the 2015 imagery as well as consultation from external partners and public. </span></p><p><span /></p><p><span>The Wetland data class was previously known as Wetland Unit and the word "Unit" has been dropped from the name. The Wetland data class provides a spatial representation and attribute information for wetlands in Ontario. Not all wetlands have been identified and mapped. Active maintenance is ongoing throughout the province. The currency and accuracy of the spatial representation is variable and requires on-the-ground verification. Many attribute fields were added in 2012. Values will be added to these fields over time. Refer to the Wetland User Guide for details on using the data. Certain attributes identify which wetlands have been evaluated with the Ontario Wetland Evaluation System (OWES) and of those which ones have been designated as Provincially Significant wetlands (PSW). Previous to 2011 this data class contained only Evaluated Wetland data. In the spring of 2011 through the Wetland Consolidation project business areas were consulted to identify the best available existing MNR wetland data for each MNR district. The resulting data were added to this data class where it did not overlap existing Evaluated Wetland data. Sources for wetland data included Wetland Interim (OBM/NTS), Forest Resource Inventory (FRI), Southern Ontario Land Recourse Inventory System (SOLRIS) and MNR district data. Wetlands are lands that are seasonally or permanently flooded by shallow water as well as lands where the water table is close to the surface; in either case the presence of abundant water causes the formation of hydric (moist) soils and has favoured the dominance of either hydrophytic (water loving) or water tolerant plants. An individual spatial polygon represents a discrete wetland type. Values for wetland types are marsh, fen, swamp, bog, treed peatland, open water or unknown. Evaluated Wetlands are those identified and assessed using the technical criteria in the OWES manuals. An evaluation may be for either an Evaluated Wetland or an Evaluated Wetland Complex. Not all wetlands in Ontario have been evaluated. An Evaluated Wetland consists of one or more adjacent (contiguous) wetland polygons. An Evaluated Wetland Complex is a group of separated wetland polygons that have similar or complementary biological, social and/or hydrological functions, are located in close proximity, and are functionally linked (ecologically or hydrologically). An Evaluated Wetland Complex may contain adjacent wetland polygons but must comprise at least one separated wetland polygon. Wetlands that meet certain criteria through OWES are designated as PSWs. The wetland polygons are managed independently from other hydro data classes and may overlap waterbodies or other hydro data. Due to the changing landscape in the south western portion of the province and the vintage of available source data, MNR Aylmer district chose not to add some of the unevaluated wetland data from other sources to the existing Wetland Unit layer during the Wetland Consolidation Project of 2011. The Far North Hudson Bay Lowlands and surrounding area have been updated as of March 31 2013. Legislated or Legal Authority for Collection: The OWES evaluation information is collected to support the wetlands component of the Provincial Policy Statement. OWES data collection began in the early 1980's and will be on-going. Wetland evaluations are subject to changes as more information becomes available. Not all of the OWES information is stored in this layer. The complete OWES file including supporting material and field notes is kept at the MNR district office. Depending on any sensitivity or security issues associated with this information holding, some of the information may not be available for viewing or distribution.</span></p></div></div></div> https://trca.ca/about/open-data-licence/' target='_blank' rel='nofollow ugc noopener noreferrer'>TRCA Open Data License</a><span><br /></span></p></div></div></div>
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ECWP 2012 Landuse
Conservation Ontario
Conservation Ontario — 2022-01-07 https://trca.ca/about/open-data-licence/

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