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    This is the set of postcode boundaries used for 2001 census outputs. The postcode boundaries for census were originally frozen in January 2001 for the purposes of producing census outputs. The dataset contains 139,045 postcode polygons.

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    This dataset portrays the boundaries of ‘Settlements’ in Scotland as at 2001 Census. There is widespread interest in statistics for the built-up areas in Scotland as most of the population lives in a built-up environment. When the former two-tier local government structure of regions and districts came into being in May 1975, the small local authorities known as large and small burghs were lost. However, Census users stated that there was a need to know the population (and characteristics) of built-up areas. There are 2 datasets which are designed to show the boundaries of ‘urban areas’ in Scotland: ‘Localities’ and ‘Settlements’. While “Settlements’ can go a long way in defining the towns and cities in Scotland, some are very extensive and have grouped together some very large populations. For example the settlement of ‘Greater Glasgow’ has a large population but no breakdown was given of the settlement into any constituent towns or cities such as Airdrie or Paisley. Accordingly, since 2001, the larger ‘Settlements’ have been divided into ‘Localities’ using as a basis the areas so designated in the 1991 Census report ‘Key statistics for ‘localities’ in Scotland (ISBN 0-11-495736-3)’. For the 2001 Census, NRS had developed a new process to identify ‘Settlements’ which were defined as: ‘A collection of contiguous high population density postcodes whose total population was 500 or more, bounded by low density postcodes (or water).’

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    This dataset contains grid references for the 2011 frozen postcode boundaries. Each individual postcode polygon holds a grid reference. Grid references have been assigned by NRS, choosing the building nearest to the centre of the most populous part of the postcode, or the grid reference is from Gridlink®.

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    This dataset shows the 1991 Census Output Areas (OAs) Household 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 household-weighted centre of the OA. Revisions and Corrections Correction to 1991 Output Area Household Weighted Centroids An anomaly was discovered when converting the Ordnance Survey Tile Reference to easting and northing where for some records, the centroid for the Output Area was not falling within the boundary of the Output Area.

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    This dataset shows the 2001 Census Output Areas (OAs) Household 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 household-weighted centre of the OA.

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    This dataset contains grid references for the 2001 frozen postcode boundaries. Each individual postcode polygon holds a grid reference. Grid references have been assigned by NRS, choosing the building nearest to the centre of the most populous part of the postcode, or the grid reference is from Gridlink®.

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    This Council area boundary dataset was created December 2013 by NRS Geography branch. The dataset has been cliipped to MHW and inland water has been removed. If users want details of the complete OS BoundaryLine product they should go to: http://www.ordnancesurvey.co.uk/business-and-government /products/boundary-line.html Population estimates from the 2011 Census have been included in this dataset. Data has been extracted from 'Table QS103SC - Age by single year'. Information on the variables and associated classifications for the topics are available on the Scotland's Census website: http://www.scotlandscensus.gov.uk/variables In order to protect against disclosure of personal information, some records have been swapped between different geographic areas. Some cell values will be affected, particularly small values at the most detailed geographies.