WSA Reservoirs

GIS representation of the reservoirs that are created and/or influenced by dams or other structures that are owned and operated by the Water Security Agency (WSA).

The majority of the reservoirs in this dataset were manually "heads-up" digitized by WSA staff based on SPOT 5 (2.5 metre pixel) imagery captured in 2006 (exact date(s) for each reservoir are in the attribute table) or the "FlySask" high-resolution aerial photography.  The polygons for three of the reservoirs: Chicken Lake, Kipahigan Lake, and Lac LaRonge, were taken from the NTS 1:50,000 scale GIS dataset from Natural Resources Canada.

For the polygons that were digitized by WSA from imagery, certain decision rules were followed in delineating the extents of the reservoirs; specifically:

  • All visibly dry land, such as dry beaches and dry mud flats, was excluded from the reservoir polygons during the digitization process. Conversely, those beaches or mud flats that appear to be saturated with water were included as part of the reservoir polygons.
  • Islands found within the reservoirs were digitized and removed from the reservoir polygons (i.e. they are represented as "holes" in the polygons).
  • For the purposes of determining the extents of the reservoir polygons (i.e. where to cut them off), "reservoir" was defined as the areas of the waterbodies that are significantly influenced by the dam/structure. Note that this is a somewhat subjective decision; for example, as to where a river ends and a reservoir starts.

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Additional Info

Field Value
Last Updated March 24, 2026, 21:14 (UTC)
Created March 24, 2026, 21:14 (UTC)
Domain / Topic
Domain or topic of the dataset being cataloged.
Title
Title for the Dataset.
WSA Reservoirs
Description
A description of the dataset.

GIS representation of the reservoirs that are created and/or influenced by dams or other structures that are owned and operated by the Water Security Agency (WSA).

The majority of the reservoirs in this dataset were manually "heads-up" digitized by WSA staff based on SPOT 5 (2.5 metre pixel) imagery captured in 2006 (exact date(s) for each reservoir are in the attribute table) or the "FlySask" high-resolution aerial photography.  The polygons for three of the reservoirs: Chicken Lake, Kipahigan Lake, and Lac LaRonge, were taken from the NTS 1:50,000 scale GIS dataset from Natural Resources Canada.

For the polygons that were digitized by WSA from imagery, certain decision rules were followed in delineating the extents of the reservoirs; specifically:

  • All visibly dry land, such as dry beaches and dry mud flats, was excluded from the reservoir polygons during the digitization process. Conversely, those beaches or mud flats that appear to be saturated with water were included as part of the reservoir polygons.
  • Islands found within the reservoirs were digitized and removed from the reservoir polygons (i.e. they are represented as "holes" in the polygons).
  • For the purposes of determining the extents of the reservoir polygons (i.e. where to cut them off), "reservoir" was defined as the areas of the waterbodies that are significantly influenced by the dam/structure. Note that this is a somewhat subjective decision; for example, as to where a river ends and a reservoir starts.
Tags / Keywords
Keywords/tags categorizing the dataset.
Format (CSV, XLS, TXT, PDF, etc)
File format of the dataset.
Dataset Size
Dataset size in megabytes.
20368.0
Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
B906C0DB-D8B9-472D-8F33-4D9B0F1AB3EE
Published Date
Published date of the dataset.
2023-06-05
Time Period Data Span (start date)
Start date of the data in the dataset.
Time Period Data Span (end date)
End date of time data in the dataset.
GeoSpatial Area Data Span
A spatial region or named place the dataset covers.
Field Value
Access category
Type of access granted for the dataset (open, closed, service, etc).
public
License
License used to access the dataset.
GOS Standard Unrestricted Use Data Licence v2.0
Limits on use
Limits on use of data.
Location
Location of the dataset.
https://geohub-wsask.hub.arcgis.com/datasets/WSASK::wsa-reservoirs
Data Service
Data service for accessing a dataset.
Owner
Owner of the dataset.
Water_Security_Agency
Contact Point
Who to contact regarding access?
Water Security Agency
Contact Point Email
The email to contact regarding access?
Publisher
Publisher of the dataset.
Water Security Agency
Publisher Email
Email of the publisher.
Author
Author of the dataset.
Water_Security_Agency
Author Email
Email of the author.
Accessed At
Date the data and metadata was accessed.
2025-06-27
Field Value
Identifier
Unique identifier for the dataset.
d4331ededb8b44f0be0737df44270855
Language
Language(s) of the dataset
English
Link to dataset description
A URL to an external document describing the dataset.
https://geohub-wsask.hub.arcgis.com/datasets/WSASK::wsa-reservoirs
Persistent Identifier
Data is identified by a persistent identifier.
Globally Unique Identifier
Data is identified by a persistent and globally unique identifier.
Contains data about individuals
Does the data hold data about individuals?
Contains data about identifiable individuals
Does the data hold identifiable data about individual?
Contains Indigenous Data
Does the data hold data about Indigenous communities?
Portal Type
Platform type of the source portal.
Field Value
Version
Version of the datatset
None
Source
Source of the dataset.
None
Version notes
Version notes about the dataset.
Is version of another dataset
Link to dataset that it is a version of.
Other versions
Link to datasets that are versions of it.
Provenance Text
Provenance Text of the data.
Water Security Agency
Provenance URL
Provenance URL of the data.
Temporal resolution
Describes how granular the date/time data in the dataset is.
GeoSpatial resolution in meters
Describes how granular (in meters) geospatial data is in the dataset.
GeoSpatial resolution (in regions)
Describes how granular (in regions) geospatial data is in the dataset.
Field Value
Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
Community Permission
Community permission (who gave permission).
The Indigenous communities the dataset is about
Indigenous communities from which data is derived.
Field Value
Number of data rows
If tabular dataset, total number of rows.
66
Number of data columns
If tabular dataset, total number of unique columns.
13
Number of data cells
If tabular dataset, total number of cells with data.
858
Number of data relations
If RDF dataset, total number of triples.
Number of entities
If RDF dataset, total number of entities.
Number of data properties
If RDF dataset, total number of unique properties used by the triples.
Data quality
Describes the quality of the data in the dataset.
Metric for data quality
A metric used to measure the quality of the data, such as missing values or invalid formats.

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