4. Technical specifications

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Record layouts and data descriptions
File specifications
Software formats
System requirements
File extension and accented character information
Geographic representation
File naming convention

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Record layouts and data descriptions

Population ecumene mask file

The population ecumene mask file contains polygons for each ecumene and non-ecumene pocket, which combined cover all of Canada.

Table 4.1
Population ecumene mask file record layout
Attribute name Data type Description
FID Object ID (4) Specific to ArcGIS®
Shape Geometry Specific to ArcGIS®
DigitalBoundary
Cartographic
Boundary
MultiPolygon PropertyType Shape geometry; specific to Geography Markup Language
ECUID Character (10) Uniquely identifies an ecumene polygon
ECUMENE Character (1) A one-digit code indicating whether the polygon is part of the ecumene: 1= in the ecumene; 0=outside the ecumene

Census division generalized cartographic boundary file

The Census division generalized cartographic boundary file portrays the census division boundaries for which 2011 Census statistical data are disseminated. A census division is a unit of regional government (such as a county or regional district) or an area treated as equivalent for statistical purposes. A census division is usually made up of a number of adjacent census subdivisions (municipalities). The file contains the boundaries of all census divisions which combined cover all of Canada.

Table 4.2
Census division generalized cartographic boundary file record layout
Attribute name Data type Description
FID Object ID (4) Specific to ArcGIS®
Shape Geometry Specific to ArcGIS®
DigitalBoundary CartographicBoundary MultiPolygon
PropertyType
Shape geometry; specific to Geography Markup Language
PRUID Character (2) Uniquely identifies a province or territory
PRNAME Character (55) Province or territory name
CDUID Character (4) Uniquely identifies a census division (composed of the 2-digit province or territory unique identifier followed by the 2-digit census division code)
CDNAME Character (40) Census division name
CDTYPE Character (3) Census division type (see Attribute domain values)

Table 4.3 Census division types by province and territory, 2011 CensusTable 4.3 Census division types by province and territory, 2011 Census

Province and Territory generalized cartographic boundary file

The Province and Territory generalized cartographic boundary file portrays the boundaries of the 10 provinces and 3 territories for which 2011 Census statistical data are disseminated. Provinces and territories are the major political (legislated) areas of Canada. The file contains the boundaries of all provinces and territories which combined cover all of Canada.

Table 4.4
Province and territory generalized cartographic boundary file record layout
Attribute name Data type Description
FID Object ID (4) Specific to ArcGIS®
Shape Geometry Specific to ArcGIS®
DigitalBoundary CartographicBoundary MultiPolygon PropertyType Shape geometry; specific to Geography Markup Language
PRUID Character (2) Uniquely identifies a province or territory
PRNAME Character (55) Province or territory name
PRENAME Character (30) Province or territory name in English
PRFNAME Character (30) Province or territory name in French
PREABBR Character (10) English abbreviation of the province or territory name
PRFABBR Character (10) French abbreviation of the province or territory name

Hydrographic reference file

The supplementary hydrographic file is provided for the mapping of inland water. This file was created to be used as spatial reference in conjunction with the ecumene file to enable thematic mapping.

Table 4.5
Hydrographic reference file record layout
Attribute name Data type Description
FID Object ID (4) Specific to ArcGIS®
Shape Geometry Specific to ArcGIS®
DigitalBoundary
Cartographic
MultiPolygon PropertyType Shape geometry; specific to Geography Markup language
HYDROUID Character (7) Uniquely identifies a water feature

Attribute domain values

CDTYPE

CDTYPE
CDTYPE

CD description

CDR Census division / Division de recensement
CT County / Comté
CTY County
DIS District
DM District municipality
MRC Municipalité régionale de comté
RD Regional district
REG Region
RM Regional municipality
Territoire équivalent
TER Territory / Territoire
UC United counties

File specifications

Not applicable

Software formats

The 2011 Census Population Ecumene Census Division Cartographic Boundary Files are available for download from the Statistics Canada website in the following formats:

  • ArcGIS® format
    File extension: .shp
  • Geography Markup Language version 3.1.1
    File extension: .gml
  • MapInfo® format
    File extension: .tab

This reference guide does not provide details on specific software packages that are available for use with the 2011 Census Population Ecumene Census Division Cartographic Boundary Files. Users are advised to contact the appropriate software vendor for information.

System requirements

Not applicable

File extension and accented character information

The ArcGIS®, Geography Markup Language and MapInfo® files are compressed into WinZip® files (file extension .zip).

An XML schema file (.xsd) is included to describe and validate the structure and content of the .gml files.

Some 2011 Census Population Ecumene Census Division Cartographic Boundary Files contain attributes with accented characters. They were successfully tested on desktop versions of ArcGIS® 9.3.1 and MapInfo® 11.0.1.

Geographic representation

The 2011 Population Ecumene Census Division Cartographic Boundary Files are available on the Statistics Canada website in the following geographic representation:

  • Datum:   NAD83
  • Coordinates:   Longitude and Latitude

The North American Datum of 1983 (NAD83) is an adjustment of the 1927 datum (NAD27) that reflects the higher accuracy of geodetic surveying.

The geographical coordinate system is the primary locational reference system for the earth. This system provides for the unique statement of location for features such as points, lines and polygons.

Users of the 2011 Census Population Ecumene Census Division Cartographic Boundary Files can transform the files into the representation that best satisfies their needs, knowing the effects these representations have on angles, areas, distances and direction. Users have the option to choose the best projection in concert with mapping objectives.

File naming convention

Spatial product file names follow a file naming convention. The 2011 Census standard geographic area and code, file type, geographic reference date, software type and language are embedded within the file name. Standardizing the names of the files facilitates the storage of compressed files, all having the extension .zip.

Each file name is 13 characters in length. All alphabetic characters are in lower case to maintain consistency.

First character: projection of file

  • g   projection is Geographic (latitude and longitude)

Next three characters: primary geographic level of file

  • pr_   province and territory
  • cd_   census division
  • ecu   ecumene
  • hy_   supporting hydrography (Great Lakes, St. Lawrence River and a selection of inland lakes.)

Next three numbers: geographic code of coverage

  • 000   Canada

Next character: file type

  • e   ecumene

Next two numbers: geographic reference date

The geographic reference date is a date determined by Statistics Canada for the purpose of finalizing the geographic framework for which 2011 Census statistical data are collected, tabulated and reported. For 2011 Census products, the geographic reference date is January 1, 2011.

  • 11   geographic reference date is 2011

Next character: file format

  • a   ArcGIS® (.shp)
  • g   Geography Markup Language (.gml)
  • m  MapInfo® (.tab)

Final two characters: language

  • _e   English
  • _f   French
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