CanMatrix is composed of raster data from scanned maps of Canada at the 1:50 000 and 1:250 000 scales. The files are geocoded according to the North American Datum of 1983 (NAD83) according to the Universal Transverse Mercator (UTM) projection. This product is distributed in GeoTIFF.
The Centre for Topographic Information wants to create a national database composed of raster map data where each pixel has a distinct geographic location (georeferenced data).
Purpose:
Moreover, since CanMatrix is basically a raster image, it can also be used as background data for a variety of applications. This can be of significant interest to users of global positioning systems (GPS), navigators, hikers, and tourists who, without being geomatics specialists, are nevertheless comfortable with digital topographic data. Lastly, CanMatrix lends itself to creating value-added products.
Supplemental Information:
This product is subject to Discrepancies processing provided by the Centre for Topographic Information from Natural Resources Canada. A discrepancy is defined as any deviation from the product's Standards and Specifications. To explore the status of discrepancies related to this dataset, see the Discrepancies Web Site from the Centre for Topographic Information: (http://www.cits.rncan.gc.ca/cit/servlet/CIT/site_id=01&page_id=1-005-010.html).
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date:
1986
Ending Date:
1986
Currentness Reference:
ground condition
Status:
Progress:
Complete
Maintenance and Update Frequency:
None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate:
-107
East Bounding Coordinate:
-106.5
North Bounding Coordinate:
52.25
South Bounding Coordinate:
52
Keywords:
Theme:
Theme Keyword Thesaurus:
None
Theme Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > BUILDINGS
Theme Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > COMMUNICATIONS
Theme Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > CULTURAL FEATURES
Theme Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > ELECTRICITY
Theme Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > PIPELINES
Theme Keyword:
EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > TRANSPORTATION
Theme Keyword:
EARTH SCIENCE > HYDROSPHERE > SURFACE WATER > LAKES
Theme Keyword:
EARTH SCIENCE > HYDROSPHERE > SURFACE WATER > RIVERS/STREAMS
Theme Keyword:
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > CONTOURS
Theme Keyword:
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > LANDFORMS
Theme Keyword:
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Theme Keyword:
Administratives Boundaries
Theme Keyword:
Buildings and Structures
Theme Keyword:
Energy
Theme Keyword:
Hydrography
Theme Keyword:
Industrial and Commercial Areas
Theme Keyword:
Places of Interest
Theme Keyword:
Relief and Landforms
Theme Keyword:
Toponymy
Theme Keyword:
Transportation
Theme Keyword:
Vegetation
Theme Keyword:
Water Saturated Soils
Place:
Place Keyword Thesaurus:
CEONET
Place Keyword:
Continent > North America > Canada > Saskatchewan
Place Keyword:
SASKATOON
Place Keyword:
073B02
Access Constraints:
None
Use Constraints:
Data are subject to the GeoGratis Licence Agreement for Unrestricted Use of Digital Data.
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person:
Customer Support Group
Contact Organization:
Government of Canada, Natural Resources Canada, Centre for Topographic Information
Contact Address:
Address Type:
mailing and physical
Address:
2144, King Street West, Suite 010
City:
Sherbrooke
State or Province:
Quebec
Postal Code:
J1J 2E8
Country:
Canada
Contact Voice Telephone:
+01-819-564-4857 / 1-800-661-2638 (Canada and USA)
A tested software is used to create dataset headers and the data themselves. This should ensure the dataset logical structure conformity.
Completeness Report:
CanMatrix was produced by scanning federal-government topographic maps at the 1:50 000 and 1:250 000 scales. Only the front side of these maps, however, have been scanned. As a result, each CanMatrix file or dataset contains all the information on the front of the paper map scanned. This takes in all the topographic information included within the neatline (or NTS (National Topographic System) division) as well as the entire map surround outside of the neatline (that is, information in the border of the map).
Most CanMatrix files represent complete map sheets and therefore conform to regular NTS divisions. Nevertheless, some are half sheets based on regular NTS divisions, while others cover more than a map sheet. The latter occurs when a map includes an area theoretically belonging to an adjacent sheet. Such maps are said to have a "border break". A border break is a cartographic technique used when it is required to extend a portion of the cartographic detail of a map beyond the neatline into the margin. This occurs when a complete map is not justified for a given NTS map sheet, because the area to be mapped is too small. This additional information is then placed on the adjacent map which becomes a map with a border break.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
The planimetric accuracy of the Canmatrix dataset is function of the planimetric accuracy of the scanned map. Horizontal accuracy of topographic maps is defined in meters. It was determined according to the STANAG Standards, Edition 5 NATO. It resulted in a five grade:
A: 25 m. B: 50 m. C: 100 m. D: > 100 m. E: Unknown
The resulting horizontal accuracy is applicable to 90% of all points at publication scale.
Accuracy value of 200 means accuracy is greater than 100 m. Accuracy value of -1 means accuracy unknown.
Circular Map Accuracy Standard (CMAS) of the scanned map in meters.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report:
The altimetric accuracy of the Canmatrix dataset is function of the altimetric accuracy of the scanned map.
Vertical accuracy of topographic maps is also defined in meters. It was determined according to the STANAG Standards, Edition 5 NATO. It resulted in a five grade classification:
0: 5 m. 1: 10 m. 2: 20 m. 3: > 20 m. 4: Unknown
The resulting vertical accuracy is applicable to 90% of all points at publication scale.
Accuracy value of 40 means accuracy is greater than 20 m. Accuracy value of -1 means accuracy unknown.
Linear Map Accuracy Standard (LMAS) of the scanned map in meters.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator:
Government of Canada, Natural Resources Canada, Centre for Topographic Information
Publication Date:
1988
Title:
073B02
Edition:
4.0
Series Information:
Series Name:
Maps of the National Topographic System of Canada
Issue Identification:
Polychrome map
Publication Information:
Publication Place:
Ottawa, Ontario, Canada
Publisher:
Government of Canada, Natural Resources Canada, Centre for Topographic Information
Source Scale Denominator:
50000
Type of Source Media:
paper
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date:
1986
Ending Date:
1986
Source Currentness Reference:
ground condition
Source Citation Abbreviation:
TOPO-073B02-4.0
Source Contribution:
Total content of the topographic map face at 1:50 000 or 1:250 000 scale is scanned.
Process Step:
Process Description:
Here are the steps and processes that were followed to create the CanMatrix product:
The paper map is digitized at a 300 dots per inch (dpi) resolution. At this resolution, each digitized pixel represents an area that varies according to the scale of the digitized map. In a 300 dpi CanMatrix file, each pixel represents an area with a sideline of 4.233 meters for a map at the 1:50 000 scale and 21.167 meters for a map at the 1:250 000 scale.
The data within the CanMatrix files are horizontally georeferenced to the North American Datum of 1983 (NAD 83) according to the Universal Transverse Mercator (UTM) projection.
The CanMatrix data are encoded into the GeoTIFF (Georeferenced Tagged Image File Format; .tif) format, where each pixel is georeferenced with respect to the above mentioned horizontal datum. With this format, the "Packbit" compression mode is used, which does not alter the data nor result in any data loss.
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version:
FGDC-STD-001-1998
Metadata Use Constraints:
Only the English XML metadata file is valid according to the XML (W3C) schema as defined by the Federal Geographic Data Committee (FGDC) (http://www.fgdc.gov). The French version of the XML metadata file does not respect the domain of values, which is only available in English in certain fields, and exists solely for the presentation of information.
Users must ensure that they use the FGDC XML schema with the English version of the XML metadata to validate the metadata.