Identification info

Metadata Language

English

Character set

UTF8

Dataset Reference Date (Creation)

2013-08-15

Dataset Reference Date (Revision)

2013-09-13

Dataset Reference Date (Publication)

2013-09-13

Identifier

www.nrscotland.gov.uk / OutputArea2011_PWC

Maintenance and update frequency

As needed

GEMET - INSPIRE themes, version 1.0

• Statistical units

GEMET - Concepts, version 2.4

• census survey

• statistical data

IPSV Subjects List

• Censuses

• Boundaries

Limitations on Public Access

Other restrictions

Other constraints

No limits to public access

Use constraints

Other restrictions

Other constraints

Open Government Licence

Other constraints

The following statements must be used when reproducing or using this material: Copyright National Records of Scotland, contains Ordnance Survey data © Crown copyright and database right (insert year).

Spatial representation type

Vector

Denominator

10000

Topic category

• Boundaries

Code

S92000003

 

Code

EPSG:4258

Code

EPSG:27700

Distribution Information

 

Data quality info

Quality Scope

Dataset

Statement

This dataset shows the 2011 Census Output Areas (OAs) Population Weighted Centroids.

An individual Output Area generally covers a sufficiently small area (subject to meeting minimum population / household counts) so that user defined or ad-hoc areas can be created while maintaining a sufficient level of quality. National Records of Scotland (NRS) produces only one set of OAs and creates all other output geographies using the OA as the building brick. Each OA is assigned to an area in a higher geography by first selecting one of the postcodes in the OA as a ‘master’ postcode. The OA inherits all of the characteristics of the master postcode including its assignments to higher areas and its grid reference.

This dataset shows the 2011 Census Output Areas (OAs) Population Weighted Centroids.

An individual Output Area generally covers a sufficiently small area (subject to meeting minimum population / household counts) so that user defined or ad-hoc areas can be created while maintaining a sufficient level of quality. National Records of Scotland (NRS) produces only one set of OAs and creates all other output geographies using the OA as the building brick. Each OA is assigned to an area in a higher geography by first selecting one of the postcodes in the OA as a ‘master’ postcode. The OA inherits all of the characteristics of the master postcode including its assignments to higher areas and its grid reference.

The master postcode was selected using an algorithm which calculates the postcode centroid within an OA which has grid references closest to the population-weighted centre of the OA. This is different from the methodology employed in 2001 where the weighting was based on household count alone. In some instances, it was necessary to assign master postcodes manually or deviate from the standard algorithm, for example, if two postcode centroids were equidistant from the population-weighted centre of the OA.

Revised 2011 Output Area codes

An anomaly was discovered in the 2011 Census Output Area (OA) codes which were published on 15 August 2013. The anomaly meant that, whilst all the current 2011 Census OA codes were unique, they did not always run in sequential order by council area. We understood that this was creating additional work for some users so we decided to replace the current 2011 OA codes with new ones that run sequentially within each council area. The new codes start at S00088956 and end with S00135306.

The 2011 Census geography datasets published on 15 August 2013 were removed temporarily from the NRS website while this work was going on. No shape boundaries, population or household estimates for OAs changed as a result of this work, only the 9-character S-code they were assigned.

A lookup file linking the archived 2011 OA code to the new 2011 OA code has also been published to help users who have already started work using the archived set of OA codes. The archived set of codes range from S00042605 to S00088955.

 

Metadata

File identifier

9d977a73-7884-4870-ae76-afccf8e6fae8 XML

Metadata Language

English

Resource type

Dataset

Metadata Date

2023-06-14T11:39:41

Metadata standard name

UK GEMINI

Metadata standard version

2.3