Watersheds - 1M

ISO-19139 Metadata

Metadata Information

Metadata language: eng
Metadata character set: utf8
Last update: 2020-12-05
Metadata maintenance:
Update frequency: asNeeded
Metadata contact:
Role: custodian
Organization's name: Geomatics Yukon – Government of Yukon
Contact information:
Address:
e-mail address: geomatics.help@gov.yk.ca
Scope of the data described by the metadata: dataset
Scope name: dataset
Name of the metadata standard used: ISO 19139 Geographic Information - Metadata - Implementation Specification
Version of the metadata standard: 2007
Metadata identifier: E4FB5C77-AC2D-4D29-BC3A-FDF61A51824F

Data Identification Information

Resource citation:
Title: Watersheds - 1M
Alternate title: CSW_BASE.WATERSHED_POLY_1M_SVW
Date:
Reference date - publication: 2003-01-01
Presentation format: mapDigital
Series:
Name: Atlas Frameworks
Issue: V5.0
Cited responsible party:
Role: originator
Organization's name: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada
Themes or categories of the resource: environment, inlandWaters
Descriptive keywords:
Place keywords:
Keywords: Y.T., Yukon, Yukon Territory
Descriptive keywords:
Theme keywords:
Keywords: Basins, Hydrography, Drainage, Drainage System, Watershed
Descriptive keywords:
Keyword type not provided
Keywords: Downloadable Data
Keyword thesaurus:
Citation reference: 723f6998-058e-11dc-8314-0800200c9a66
Abstract: The Drainage Areas dataset is largely based on the Water Survey of Canada (WSC) drainage area boundaries at the sub-sub-basin level. The data model supports the derivation, from the Fundamental Drainage Areas dataset (sub-sub-basin level), of the WSC and Atlas of Canada drainage area hierarchies and the data is available in all three schemes. Drainage area definitions for both WSC and Atlas of Canada boundaries were reviewed resulting in some modifications. Larger scale reference data sources were used for further manual boundary adjustments. This dataset has been integrated with other National Scale Frameworks hydrology datasets and is considered a component of the Hydrology Theme (see Supplemental Information for more details about the Atlas of Canada National Frameworks data at the 1:1,000,000 scale).The Atlas Frameworks are a set of integrated base map layers which form part of a larger National-Scale Frameworks data collection. These data have been compiled at a scale of 1:1 000 000 with the primary goal being to indicate correct relative positioning with other framework layers rather than absolute positional accuracy.Distributed from GeoYukon by the Government of Yukon. Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: geomatics.help@gov.yk.ca
Purpose: The Drainage Areas dataset is largely based on the Water Survey of Canada (WSC) drainage area boundaries at the sub-sub-basin level.
Dataset language:eng
Dataset character set: utf8
Status: completed
Resource maintenance:
Update frequency: asNeeded
Resource constraints:
General constraints:
Limitations of use: Open Government Licence - Canada (https://open.canada.ca/en/open-government-licence-canada)
Aggregated resource information:
Aggregate dataset name:
Title: National Scale Frameworks Hydrology - Drainage Areas, Canada
Date:
Reference date - publication: 2003-01-01
Association type: largerWorkCitation
Spatial representation type: vector
Processing environment: Esri ArcGIS 10.4.1.5686
Resource extent:
Geographic element:
Bounding rectangle:
Extent contains the resource: true
West longitude: -160.805241
East longitude: -97.39121
North latitude: 75.653757
South latitude: 53.642103
Resource extent:
Geographic element:
Bounding rectangle:
Extent contains the resource: true
West longitude: -160.805241
East longitude: -97.39121
North latitude: 75.653757
South latitude: 53.642103
Resource extent:
Extent description: publication date
Temporal element:
Temporal extent:
2003-01-01T00:00:00
Resource extent:
Geographic element:
Bounding rectangle:
Extent contains the resource: true
West longitude: -160.805241
East longitude: -97.39121
North latitude: 75.653757
South latitude: 53.642103
Credits: Government of Yukon on behalf of Natural Resources Canada
Resource point of contact:
Role: pointOfContact
Organization's name: Geomatics Yukon – Government of Yukon
Contact information:
Address:
e-mail address: geomatics.help@gov.yk.ca

Spatial Representation

Vector Data

Level of topology for this dataset: geometryOnly
Geometric objects:
Object type: composite
Object count: 182

Reference System Information

Reference system identifier:
Value: 0

Data Quality

Scope of quality information:
Level of the data:dataset
Resource lineage:
Lineage statement: Where possible, boundaries were derived directly from source data.
Process step:
Description: The dataset was clipped to the extents of the Yukon Governments data holdings (-155°W, 55°N to -115°W, 70°N) and reprojected into Yukon Albres projection.
Process step:
Description: Boundaries were manually digitized from reference sources.
Process step:
Description: Where boundaries could not be derived directly from source data or manually digitized from reference data, arcs taken from automatically generated Voronoi polygons were used.
Process step:
Description: Quality control was performed to ensure agreement between the drainage area boundaries and hydrologic features.
Process step:
When the process occurred: 2003-01-01T00:00:00
Description: Aggregation of Blocks to Drainage Areas: The population and private dwelling counts have been aggregated to the drainage areas based on the location of representative points of census blocks. A block is an area bounded on all sides by roads and/or boundaries of standard geographic areas. The block is the smallest geographic area for which population and dwelling counts are disseminated. The representative point for a block is a single point representing the block and is located centrally within it. The aggregation was done using a spatial join in ESRI ArcMap 8.3 with the "closest" option. There may be some error introduced by this method where a block crosses a drainage area boundary: the population and dwelling counts are assigned to only one of the drainage areas based on the location of the representative point even though population and dwellings may be located in both. Additionally, some block points fell in water areas of the framework, other than those allocated to drainage areas. This problem resulted primarily from the finer spatial resolution in most parts of the country of the census blocks compared to the drainage area framework. These blocks were assigned to drainage areas by determining the drainage area closest to the representative point.
Source:
Source citation:
Title: Sources of raw data by province/territory
Date:
Source extent:
Extent description: publication date
Temporal element:
Temporal extent:
2001-01-01T00:00:00
Data quality report:
Completeness omission:
Measure produced by the test: The Drainage Areas Framework supports two hierarchical classification schemes: the Water Survey of Canada, and the National Atlas of Canada. These are identified in their file names by the tags WSC and NA respectively. The fundamental Drainage Area Framework dataset, canadfda, contains attributes for both classification schemes as well as the INTERNAL and DIVERSION attributes. The Water Survey of Canada classification scheme has three levels: Major Drainage Area, Sub-Drainage Area, and Sub-Sub-Drainage Area. The National Atlas classification scheme has five levels: Ocean Drainage Area, Major River Basin, Component Basin (of Major River Basin), Sub-Component Basin, and Sub-Sub-Component Basin. In each scheme the deepest level (SSDA or SSCB) can be used to derive the higher levels. For convenience the higher levels have been provided. Each level preserves the attributes of the levels above it (i.e. each Sub-Sub-Drainage Area is also coded with its parent Sub-Drainage Area and Major Drainage Area).
Data quality result:
Data quality report:
Topological consistency:
Evaluation method: Using ESRI ArcGIS automated reporting, the following were tested for all features: a) arcs begin or end at nodes b) arcs connect to each other at nodes c) arcs do not extend past nodes d) polygons are closed e) All points, lines and polygons are topologically related. Where these statements for arc/node relationships were found to be false, manual editing was performed until automated reporting showed all to be true. Upon completion of all quality control procedures the entirety of this dataset is considered as topologically clean.
Data quality result:
Data quality report:
Conceptual consistency:
Measure produced by the test: Using ESRI ArcGIS automated reporting, the following were tested for all features: a) arcs begin or end at nodes b) arcs connect to each other at nodes c) arcs do not extend past nodes d) polygons are closed e) All points, lines and polygons are topologically related. Where these statements for arc/node relationships were found to be false, manual editing was performed until automated reporting showed all to be true. Upon completion of all quality control procedures the entirety of this dataset is considered as topologically clean.
Data quality result:
Data quality report:
Absolute external positional accuracy:
Evaluation method: This average positional accuracy estimate is based on tests performed on source data by the source agencies.
Data quality result:
Quantitative test results:
Value units:
Result value: 1200
Data quality report:
Quantitative attribute accuracy:
Measure produced by the test: Where applicable, attribute data were symbolized on-screen or as hard copy plots and inspected. Attribute data integrity was also verified using automated procedures to check for anomalies such as duplication of data in fields requiring unique vales and incorrect feature coding.
Data quality result:

Distribution Information

Distributor:
Distributor contact:
Role: distributor
Organization's name: Geomatics Yukon – Government of Yukon
Contact information:
Address:
e-mail address: geomatics.help@gov.yk.ca
Distribution format:
Format name: Feature Class
Format version:
Transfer options:
Online distribution information:
Online location: https://yukon.maps.arcgis.com/home/item.html?id=315d9f7048554bb8b91ad18cb27ec14e
Transfer options:
Online distribution information:
Online location: https://map-data.service.yukon.ca/GeoYukon/Biophysical/Watersheds_1M/