Identification Information:
Citation:
Citation Information:
Originator: Alberta Energy Regulator
Originator: Alberta Geological Survey
Originator: Lucente, C.
Originator: Brinsky, J.
Publication Date: 2023
Title:
Distribution of Hydraulic Head in the Spirit River Hydrostratigraphic Unit (gridded data, ASCII format)
Geospatial Data Presentation Form: raster digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2022-0045
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Online Linkage: https://ags.aer.ca/document/DIG/DIG_2022_0045.zip
Description:
Abstract:

This grid represents the distribution of hydraulic head in the Spirit River hydrostratigraphic unit (HSU). It is a result of a geostatistical model which was constructed using publicly available pressure data from oil and gas well drillstem tests.

The hydraulic head distribution was mapped at a regional scale using many years of data, thus providing a good indication of regional groundwater flow within the unit rather than site-specific values.

Purpose: To provide the regional hydraulic head surface for the Spirit River HSU
Supplemental Information: Language: In English;
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1956
Ending Date: 2008
Currentness Reference: ground condition
Status:
Progress: Complete
Maintenance and Update Frequency: None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -120
East Bounding Coordinate: -112
North Bounding Coordinate: 58
South Bounding Coordinate: 52
Keywords:
Theme:
Theme Keyword Thesaurus: none
Theme Keyword: drillstem test
Theme Keyword: geology
Theme Keyword: groundwater
Theme Keyword: hydrogeology
Theme Keyword: potentiometric surface
Theme Keyword: spirit river formation
Place:
Place Keyword Thesaurus: none
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: 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: Brinsky, J.
Originator: Lucente, C.
Publication Date: 2022
Title: Distribution of Hydraulic Head in the Spirit River Hydrostratigraphic Unit
Geospatial Data Presentation Form: map
Series Information:
Series Name: Map
Issue Identification: MAP 637
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Other Citation Details: ISBN:978-1-4601-5369-7 Scale:1:1750000
Online Linkage: https://ags.aer.ca/
Cross Reference:
Citation Information:
Originator: Alberta Energy Regulator
Originator: Alberta Geological Survey
Originator: Lucente, C.
Originator: Brinsky, J.
Publication Date: 2023
Title:
Distribution of Hydraulic Head in the Spirit River Hydrostratigraphic Unit (tabular data, tab-delimited format)
Geospatial Data Presentation Form: database
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2022-0022
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 following statistics describe the accuracy of the geostatistical layer used to create the final grid.

Mean error = 0.6 m

Root mean square error = 40.2 m

Mean standardized error = 0.00661629

Root mean square standardized = 0.9802375

Average standard error = 39.4 m

The root mean square error of the final smoothed grid is 20 m

Logical Consistency Report: Grid cell spacing is 500 metres by 500 metres. Grid cells with no data are assigned the value -9999.
Completeness Report:
The final hydraulic head surface grid covers the extent of the Spirit River HSU as modelled in the Geological Framework of Alberta, version 3. In addition, the final map was clipped to the spatial extent of data.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
The horizontal accuracy of the input hydraulic head point data (AGS DIG 2022-0022) is affected by the locational accuracy of the wells. The locations of the oil and gas wells may be accurate to within millimetres depending on surveying standards at the time of drilling.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report:
The vertical accuracy of the input hydraulic head point data (AGS DIG 2022-0022) is affected by the locational accuracy of the wells. The mid-point of the tested interval is a calculated value and its accuracy is dependent on the accuracy of the measured depths and elevations provided in the well header. For the oil and gas wells, the well elevations and locations are surveyed, so precision will be to the same number of significant digits as provided by the data source. The location of the tested interval in oil and gas wells may be accurate to within millimetres in accordance with surveying standards at the time of drilling.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: Alberta Energy Regulator
Originator: Alberta Geological Survey
Originator: Lucente, C.
Originator: Brinsky, J.
Publication Date: 2023
Title:
Distribution of Hydraulic Head in the Spirit River Hydrostratigraphic Unit (tabular data, tab-delimited format)
Geospatial Data Presentation Form: database
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2022-0022
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Source Scale Denominator: 0
Type of Source Media: database
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1961
Ending Date: 2013
Source Currentness Reference: ground conditions
Source Citation Abbreviation: DST
Source Contribution: data for hydraulic head mapping
Process Step:
Process Description:

Selection criteria and the final data set used for interpolation of this grid are documented in the metadata for AGS Digital Data 2022-0022.

Step 1 (Modelling the surface): An empirical Bayesian kriging algorithm was used in the ArcMap Geostatistical Analyst extension to interpolate the hydraulic head values and create a grid of the head surface of the Spirit River HSU.

Method Report:

Output surface type: Prediction

Transformation: None

Neighbourhood type: Standard circular

Maximum neighbours: 8

Minimum neighbours: 8

Sector type: 4 sectors

Samples: 380

Cell size: 500 m

Step 2 (Grid Smoothing): The grid was smoothed using focal statistics which calculates for each input cell location a statistic of the values within a specified neighbourhood around it, in this case a 3-cell radius. Smoothing the surface used the average cell value.

Step 3 (Grid Alterations): The final grid was clipped based on the extent of the Spirit River HSU, and spatial distribution of data.

Process Date: 2022
Spatial Data Organization Information:
Direct Spatial Reference Method: Raster
Raster Object Information:
Raster Object Type: Pixel
Row Count: 1100
Column Count: 994
Spatial Reference Information:
Horizontal Coordinate System Definition:
Planar:
Map Projection:
Map Projection Name: NAD 1983 Transverse Mercator
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: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System of 1980
Semi-Major Axis: 6378137.0
Denominator of Flattening Ratio: 298.257222101
Vertical Coordinate System Definition:
Altitude System Definition:
Altitude Datum Name: Canadian Geodetic Vertical Datum of 1928
Altitude Resolution: 10
Altitude Distance Units: metres
Altitude Encoding Method: Explicit elevation coordinate included with horizontal coordinates
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: 20230308
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