Hydrogeological Units, Groundwater Geoscience Program This dataset is designed to capture and represent through maps and succinct table report a set of synthesized information pertaining in general to hydrogeological units. It is considered the main dataset from the Groundwater Geosciences Program point of view. In the particular case of this dataset, a hydrogeological unit could be a hydrogeological region, a hydrogeological context, an aquifer system, a hydrostratigraphic unit or an aquifer. The rank attribute is used to specify the scope of the described unit (from aquifer to hydrogeological region). Some attributes (or properties) of the dataset are irrelevant depending of the rank of the unit. This dataset is organised to include multiple properties associated with aquifers and larger hydrogeologic units. These properties are gathered in larger classes which include identification, physiography, geology, aquifer description and properties, water balance, groundwater use and risk. The numerical values associated with each of the properties can be used to create thematic maps, hence the importance of using standardized units of measurements and definitions for these properties. When numerical values are not available, a general description can be supplied instead. The description can also be used to add context to the numerical values. Because this dataset is the cornerstone of the national view on groundwater, supplemental contextual information (metadata) must be part of the data. Thus, for each property, metadata identifying the source of the original data, links to similar data in GIN and description of the processes, algorithms or methodology used to obtain these datasets will be available to complement the data. A set of more complete metadata can be filled using the metadata forms available for the groundwater mapping projects. The general concept of this dataset is to apply the same data structure to various types of hydrogeological units, from the local aquifer to the almost continental hydrogeological region. The rank of the unit is defined through a specific property within this dataset (rank). The possible ranks are the following: - Hydrogeological region Hydrogeological regions are areas in which the properties of sub-surface water, or groundwater, are broadly similar in geology, climate and topography. There is 9 regions in Canada that have distinct groundwater systems. - Hydrogeological context Integration of physiography, geology and hydrogeology. - Aquifer system A heterogeneous body of intercalated permeable and poorly permeable material that functions regionally as a water-yielding hydraulic unit; it comprises two or more permeable beds [aquifers] separated at least locally by aquitards [confining units] that impede groundwater movement but do not greatly affect the regional hydraulic continuity of the system [Poland et al., 1972 1].) - Hydrostratigraphic unit Body of sediment and/or rock characterized by ground water flow that can be demonstrated to be distinct under both unstressed (natural) and stressed (pumping) conditions, and is distinguishable from flow in other HSUs [Moyes et al. 2] - Aquifer A formation, group of formations, or part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs (Lohman and others, 1972). 2014-07-24 2017-12-12 Natural Resources Canada nrcan.gsc-geosciencedata-donneesgeoscience-cgc.rncan@canada.ca Form DescriptorsNature and EnvironmentScience and TechnologyHydrogeology Hydrogeological Units, Groundwater Geoscience Program (French web service)WMS http://gin.gw-info.net/service/gin/wms/mediator/gin_fr?request=GetCapabilities&version=1.3.0&service=WMS&LAYERS=HydrogeologicUnit&legend_format=image/png&feature_info_type=text/html Hydrogeological Units, Groundwater Geoscience Program (French web service)HTML http://gin.gw-info.net/service/api_ngwds:gin2/fr/data/standard.download.html?THEME=1&BBOX=-180,30.84375,5.019531,90 Hydrogeological Units, Groundwater Geoscience Program (English web service)HTML http://gin.gw-info.net/service/api_ngwds:gin2/en/data/standard.download.html?THEME=1&BBOX=-180,30.84375,5.019531,90 Hydrogeological Units, Groundwater Geoscience Program (English web service)WMS http://gin.gw-info.net/service/gin/wms/mediator/gin_en?request=GetCapabilities&version=1.3.0&service=WMS&LAYERS=HydrogeologicUnit&legend_format=image/png&feature_info_type=text/html

Hydrogeological Units, Groundwater Geoscience Program

This dataset is designed to capture and represent through maps and succinct table report a set of synthesized information pertaining in general to hydrogeological units. It is considered the main dataset from the Groundwater Geosciences Program point of view. In the particular case of this dataset, a hydrogeological unit could be a hydrogeological region, a hydrogeological context, an aquifer system, a hydrostratigraphic unit or an aquifer. The rank attribute is used to specify the scope of the described unit (from aquifer to hydrogeological region). Some attributes (or properties) of the dataset are irrelevant depending of the rank of the unit. This dataset is organised to include multiple properties associated with aquifers and larger hydrogeologic units. These properties are gathered in larger classes which include identification, physiography, geology, aquifer description and properties, water balance, groundwater use and risk. The numerical values associated with each of the properties can be used to create thematic maps, hence the importance of using standardized units of measurements and definitions for these properties. When numerical values are not available, a general description can be supplied instead. The description can also be used to add context to the numerical values. Because this dataset is the cornerstone of the national view on groundwater, supplemental contextual information (metadata) must be part of the data. Thus, for each property, metadata identifying the source of the original data, links to similar data in GIN and description of the processes, algorithms or methodology used to obtain these datasets will be available to complement the data. A set of more complete metadata can be filled using the metadata forms available for the groundwater mapping projects. The general concept of this dataset is to apply the same data structure to various types of hydrogeological units, from the local aquifer to the almost continental hydrogeological region. The rank of the unit is defined through a specific property within this dataset (rank). The possible ranks are the following: - Hydrogeological region Hydrogeological regions are areas in which the properties of sub-surface water, or groundwater, are broadly similar in geology, climate and topography. There is 9 regions in Canada that have distinct groundwater systems. - Hydrogeological context Integration of physiography, geology and hydrogeology. - Aquifer system A heterogeneous body of intercalated permeable and poorly permeable material that functions regionally as a water-yielding hydraulic unit; it comprises two or more permeable beds [aquifers] separated at least locally by aquitards [confining units] that impede groundwater movement but do not greatly affect the regional hydraulic continuity of the system [Poland et al., 1972 1].) - Hydrostratigraphic unit Body of sediment and/or rock characterized by ground water flow that can be demonstrated to be distinct under both unstressed (natural) and stressed (pumping) conditions, and is distinguishable from flow in other HSUs [Moyes et al. 2] - Aquifer A formation, group of formations, or part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs (Lohman and others, 1972).

View on Map

Resources

Resource Name Resource Type Format Language Links
Hydrogeological Units, Groundwater Geoscience Program (French web service) Web Service WMS French Access
Hydrogeological Units, Groundwater Geoscience Program (French web service) Application HTML French Access
Hydrogeological Units, Groundwater Geoscience Program (English web service) Application HTML English Access
Hydrogeological Units, Groundwater Geoscience Program (English web service) Web Service WMS English Access

Geographic Information

Spatial Feature

Contact Information

Electronic Mail Address: nrcan.gsc-geosciencedata-donneesgeoscience-cgc.rncan@canada.ca

Comments(0)