Identification_Information :

    Citation :

      Citation_Information :

        Originator : Alberta Energy Regulator

        Originator : Alberta Geological Survey

        Originator : Rabbani, A.

        Originator : Geng, H.

        Originator : Onojeghuo, A.

        Originator : Nakevska, N.

        Publication_Date : 2021

        Title : Geothermal Resource Quantification Grids for the Leduc Formation, Swan Hills / Slave Point Formations, and Granite Wash (gridded data, GeoTiff format)

        Geospatial_Data_Presentation_Form : raster digital data

        Series_Information :

          Series_Name : Digital Data

          Issue_Identification : DIG 2024-0016

        Publication_Information :

          Publication_Place : Edmonton, Alberta, Canada

          Publisher : Alberta Geological Survey

        Online_Linkage : https://ags.aer.ca/publication/dig-2024-0016

    Description :

      Abstract : This digital data release comprises gridded geothermal resource quantification datasets representing the distribution of the estimated mean heat-in-place (HIP) and mean gross electrical power potential for the Leduc Formation, the combined Swan Hills and Slave Point formations, and the Granite Wash in Alberta.

The HIP grids were produced using the widely accepted and standardized, stochastic United States Geological Survey (USGS) volumetric method with probability distributions, factoring in reservoir characteristics such as temperature, volume, porosity, specific heat capacity, and density.

The mean gross electrical power potential grids are based on the heat-in-place estimates calculated for each legal subdivision (LSD). The gross electrical power potential depends on the electrical utilization factor, which is a function of reservoir temperature. At 320°K (47°C), the utilization factor is zero, indicating no power generation. Consequently, estimates of gross electrical power potential are restricted to reservoir temperatures exceeding 90°C.

This digital data product is part of the Geothermal Atlas of Alberta, developed under the Mineral Grant provided by the Government of Alberta.

      Purpose : To provide gridded datasets describing probabilistic values for geothermal resource quantification for the Leduc Formation, the combined Swan Hills and Slave Point formations, and the Granite Wash in Alberta.

      Supplemental_Information : Language: In English;

    Time_Period_of_Content :

      Time Period Information :

        Single Date/Time :

          Calendar_Date : 2024

    Currentness_Reference : publication date

  Status :

    Progress : Complete

    Maintenance_and_Update_Frequency : None planned

  Spatial Domain :

    Bounding Coordinates :

      West_Bounding_Coordinate : -120

      East_Bounding_Coordinate : -110

      North_Bounding_Coordinate : 60

      South_Bounding_Coordinate : 49

  Keywords :

    Theme :

      Theme_Keyword_Thesaurus : ISO 19115 Topic Category

      Theme_Keyword : atlas

      Theme_Keyword : devonian

      Theme_Keyword : geothermal

      Theme_Keyword : granite wash

      Theme_Keyword : grid

      Theme_Keyword : gross electrical power

      Theme_Keyword : gross thermal power

      Theme_Keyword : heat in place

      Theme_Keyword : leduc formation

      Theme_Keyword : resource estimation

      Theme_Keyword : slave point formation

      Theme_Keyword : swan hills formation

    Place :

      Place_Keyword_Thesaurus : ISO 19115 Topic Category

      Place_Keyword : 72e

      Place_Keyword : 72l

      Place_Keyword : 72m

      Place_Keyword : 73d

      Place_Keyword : 73e

      Place_Keyword : 73l

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      Place_Keyword : 74m

      Place_Keyword : 82g

      Place_Keyword : 82h

      Place_Keyword : 82i

      Place_Keyword : 82j

      Place_Keyword : 82n

      Place_Keyword : 82o

      Place_Keyword : 82p

      Place_Keyword : 83a

      Place_Keyword : 83b

      Place_Keyword : 83c

      Place_Keyword : 83d

      Place_Keyword : 83e

      Place_Keyword : 83f

      Place_Keyword : 83g

      Place_Keyword : 83h

      Place_Keyword : 83i

      Place_Keyword : 83j

      Place_Keyword : 83k

      Place_Keyword : 83l

      Place_Keyword : 83m

      Place_Keyword : 83n

      Place_Keyword : 83o

      Place_Keyword : 83p

      Place_Keyword : 84a

      Place_Keyword : 84b

      Place_Keyword : 84c

      Place_Keyword : 84d

      Place_Keyword : 84e

      Place_Keyword : 84f

      Place_Keyword : 84g

      Place_Keyword : 84h

      Place_Keyword : 84i

      Place_Keyword : 84j

      Place_Keyword : 84k

      Place_Keyword : 84l

      Place_Keyword : 84m

      Place_Keyword : 84n

      Place_Keyword : 84o

      Place_Keyword : 84p

      Place_Keyword : alberta

      Place_Keyword : canada

  Access_Constraints : Public

  Use_Constraints : Acknowledgement of the Alberta Energy Regulator / Alberta Geological Survey as the originator / source of this information is required as described in the Open Government License - Alberta.

  Point_of_Contact :

    Contact_Information :

      Contact_Organization_Primary :

        Contact_Organization : Alberta Geological Survey

        Contact_Person : AGS Information Manager

      Contact_Position : AGS Information Manager

      Contact_Address :

        Address_Type : mailing and physical

        Address : Alberta Energy Regulator

        Address : 4th Floor, Twin Atria Building

        Address : 4999-98 Avenue NW

        City : Edmonton

        State_or_Province : Alberta

        Postal_Code : T6B 2X3

        Country : Canada

      Contact_Voice_Telephone : (780) 638-4491

      Contact_Facsimile_Telephone : (780) 422-1459

      Contact_Electronic_Mail_Address : AGS-Info@aer.ca

      Hours_of_Service : 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

  Cross_Reference :

    Citation_Information :

      Originator : Alberta Energy Regulator

      Originator : Alberta Geological Survey

      Originator : Onojeghuo, A.

      Originator : Nakevska, N.

      Originator : Geng, H.

      Originator : Rabbani, A.

      Originator : Babakhani, M.

      Publication_Date : 2024

      Title : Geothermal Atlas of Alberta, Version 1 (interactive app and map, methodology, dataset, web maps)

      Geospatial_Data_Presentation_Form : view

      Series_Information :

        Series_Name : Interactive App and Map

        Issue_Identification : IAM 016

      Publication_Information :

        Publication_Place : Edmonton, Alberta, Canada

        Publisher : Alberta Geological Survey

      Online_Linkage : https://ags.aer.ca

  Cross_Reference :

    Citation_Information :

      Originator : Alberta Energy Regulator

      Originator : Alberta Geological Survey

      Originator : Geng, H.

      Originator : Rabbani, A.

      Originator : Onojeghuo, A.

      Publication_Date : 2024

      Title : Geothermal Resource Quantification of the Leduc Formation, Swan Hills / Slave Point Formations, and Granite Wash in Alberta (tabular data, tab-delimited)

      Geospatial_Data_Presentation_Form : tabular digital data

      Series_Information :

        Series_Name : Digital Data

        Issue_Identification : DIG 2024-0013

      Publication_Information :

        Publication_Place : Edmonton, Alberta, Canada

        Publisher : Alberta Geological Survey

      Online_Linkage : https://ags.aer.ca

Data_Quality_Information :

  Attribute_Accuracy :

    Attribute_Accuracy_Report : The mean heat-in-place and mean gross electrical power potential grids were generated using an inverse distance weighted (IDW) interpolation method. This was performed using the “Geostatistical Wizard” toolbox in ArcGIS Pro. The accuracy of the grids depends on the accuracy of the input grid datasets (temperature, porosity, vertical thickness) used to generate the stochastic resource estimates. Listed below are the cross-validation summaries of the IDW interpolation for the respective geological units and resource quantification grids:

1. Leduc Formation

Grid: Heat-In-Place

Number of points used for interpolation: 767995

Mean error: 0.0

Root mean square error: 0.3 PJ

Grid: Mean Gross Electrical Power

Number of points used for interpolation : 767995

Mean error: 0.0

Root mean square error: 0.002 MWe

2. Swan Hills / Slave Point formations

Grid: Heat-In-Place

Number of points used for interpolation: 1158728

Mean error: 0.0

Root mean square error: 0.05 PJ

Grid: Mean Gross Electrical Power

Number of points used for interpolation: 1158728

Mean error: 0.0

Root mean square error: 0.0 MWe

3. Granite Wash

Grid: Heat-In-Place

Count : 601517

Mean error: 0.0

Root mean square error: 0.03 PJ

Grid: Mean Gross Electrical Power

Count : 601517

Mean error: 0.0

Root mean square error: 0.0 MWe

  Logical_Consistency_Report : Grid-cell spacing is 250 m by 250 m

  Completeness_Report : The heat-in-place and gross electrical power potential grids were delineated based on the spatial extent of the respective geological unit and input data used.

  Positional_Accuracy :

    Horizontal_Positional_Accuracy :

   Horizontal_Positional_Accuracy_Report : The heat-in-place and gross electrical power potential grids have a spatial resolution of 250 metres.

  Lineage :

    Process_Step :

   Process_Description : To generate the LSD-based resource quantification grids (namely, heat-in-place [HIP] and gross electrical power), for the three geological units (Leduc Formation, combined Swan Hills and Slave Point formations, and Granite Wash) the following steps were followed:

Step 1 – GIS point feature class files showing the centroids' coordinates (eastings and northings) for each legal subdivision (LSD) were generated for each geological unit.

Step 2 – HIP and gross electrical power potential were estimated at each LSD-centroid using the USGS volumetric method (Williams et al., 2008) combined with Monte Carlo simulation to capture uncertainties in input parameters. The input parameters used for the Monte Carlo simulation are raster datasets of average porosity, temperature at the formation base, and vertical thickness for geological units extracted at each LSD centroid. The HIP estimates provided the basis for further estimation of the gross electrical power potential using methods described in Palmer-Wilson et al. (2018) and Banks and Harris (2018).

Step 3 – The mean HIP and mean gross electrical power grids were generated using an inverse distance weighted (IDW) interpolation method. This was performed using the “Geostatistical Wizard” toolbox in ArcGIS Pro.

Step 4 – After several runs, suitable IDW interpolation parameters were selected for each geological unit.

Step 5 – The generated geostatistical layer was exported to a raster and clipped based on the spatial extent of the geological unit and input data.

References:

Banks, J. and Harris, N.B. (2018): Geothermal potential of foreland basins: A case study from the Western Canadian Sedimentary Basin; Geothermics, v. 76, p. 74–92.

Palmer-Wilson, K., Banks, J., Walsh, W. and Robertson, B. (2018): Sedimentary basin geothermal favourability mapping and power generation assessments; Renewable Energy, v. 127, 1087–1100.

Williams, C.F., Reed, M.J. and Mariner, R.H. (2008): A review of methods applied by the US Geological Survey in the assessment of identified geothermal resources. U.S. Geological Survey Open-File Report 2008-1296, 27 p.

   Process_Date : 2024

  Data_Quality_Information :

Spatial_Data_Organization_Information : Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Grid cell

Row Count: HIP grids: Leduc Formation - 3419 | Swan Hills / Slave Point formations - 3968 | Granite Wash - 1676. Electrical power potential grids: Leduc Formation - 3419 | Swan Hills / Slave Point formations – 3968 | Granite Wash – 1676.

Column Count: HIP grids: Leduc Formation - 2720 | Swan Hills / Slave Point formations - 1861 | Granite Wash - 1535. Electrical power potential grids: Leduc Formation - 2720 | Swan Hills / Slave Point formations – 1861 | Granite Wash – 1535.

Spatial_Reference_Information : Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 10TM AEP Forest

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9992

Longitude_of_Central_Meridian: -115.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000002219135986081256

Ordinate_Resolution: 0.000000002219135986081256

Planar_Distance_Units: metre

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-Major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information : Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview: Grid-cell values represent the mean distribution of heat-in-place (PJ) and mean gross electrical power potential (MWe) for the Leduc Formation, the combined Swan Hills and Slave Point formations, and Granite Wash.

  Distribution_Information :

    Distributor :

      Contact_Information :

        Contact_Organization_Primary :

          Contact_Organization : Alberta Geological Survey

          Contact_Person : AGS Information Manager

        Contact_Position : AGS Information Manager

        Contact_Address :

          Address_Type : mailing and physical

          Address : Alberta Energy Regulator

          Address : 4th Floor, Twin Atria Building

          Address : 4999-98 Avenue NW

          City : Edmonton

          State_or_Province : Alberta

          Postal_Code : T6B 2X3

          Country : Canada

        Contact_Voice_Telephone : (780) 638-4491

        Contact_Facsimile_Telephone : (780) 422-1459

        Contact_Electronic_Mail_Address : AGS-Info@aer.ca

        Hours_of_Service : 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

Distribution_Liability : The Alberta Energy Regulator / Alberta Geological Survey (AER/AGS) licenses this information under the Open Government License - Alberta. Any references to proprietary software in our documentation, and/or any use of proprietary data formats in our releases, do not constitute endorsement by the AER/AGS of any manufacturer's product.

  Metadata_Reference_Information :

    Metadata_Date : 20241024

    Metadata_Contact :

      Contact_Information :

        Contact_Organization_Primary :

          Contact_Organization : Alberta Geological Survey

          Contact_Person : AGS Information Manager

        Contact_Position : AGS Information Manager

        Contact_Address :

          Address_Type : mailing and physical

          Address : Alberta Energy Regulator

          Address : 4th Floor, Twin Atria Building

          Address : 4999-98 Avenue NW

          City : Edmonton

          State_or_Province : Alberta

          Postal_Code : T6B 2X3

          Country : Canada

        Contact_Voice_Telephone : (780) 638-4491

        Contact_Facsimile_Telephone : (780) 422-1459

        Contact_Electronic_Mail_Address : AGS-Info@aer.ca

        Hours_of_Service : 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

    Metadata_Standard_Name : FGDC Content Standard for Digital Geospatial Metadata

    Metadata_Standard_Version : FGDC-STD-001-1998

    Metadata_Time_Convention : local time

    Metadata_Access_Constraints : none

    Metadata_Use_Constraints : none