Identification

Title

Locality Centroids - Scotland

Alternative title(s)

Abstract

Locality grid references are created and maintained by National Records of Scotland (NRS). Grid references are calculated based on the population of the postcodes within the locality, while ensuring that the centroid is located inside the boundary. Further details on settlements and localities, including the methodology, can be found in the Special Area Population Estimates: Settlements and Localities section of the NRS website.

Resource type

dataset

Resource locator

https://maps.gov.scot/server/services/NRS/NRS/MapServer/WMSServer?

protocol: OGC:WMS

name: LocalityCentroids

description: OGC View Service

function: information

https://maps.gov.scot/server/services/NRS/NRS/MapServer/WFSServer?

protocol: OGC:WFS

name: NRS:LocalityCentroids

description: OGC Feature Download Service

function: download

https://www.nrscotland.gov.uk/files//geography/dataset/Localities2020centroids.zip

protocol: WWW:DOWNLOAD-1.0-http--download

name: Localities Centroids 2020

description: ESRI Shapefile Download

function: download

https://www.nrscotland.gov.uk/statistics-and-data/geography/our-products/settlements-and-localities-dataset

protocol: WWW:LINK-1.0-http--link

name: National Records of Scotland website

description: Geography – Settlements and Localities - ESRI Shapefiles

function: information

Unique resource identifier

code

NRS_LocalityBdry

codeSpace

www.nrscotland.gov.uk

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

boundaries

Keywords

Keyword set

keyword value

Statistical units

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

urban settlement

originating controlled vocabulary

title

reference date

date type

publication

effective date

2010-01-13

Keyword set

keyword value

Boundaries

Urban communities

originating controlled vocabulary

title

reference date

date type

publication

effective date

2020-11-18

Geographic location

West bounding longitude

-8.80

East bounding longitude

-0.71

North bounding latitude

60.87

South bounding latitude

54.63

Extent

Extent group

authority code

code identifying the extent

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

creation

effective date

2003-02-13T09:30:00

date type

revision

effective date

2022-03-31T09:30:00

Frequency of update

asNeeded

Quality and validity

Lineage

This dataset provides median population weighted centroids for the 2020 Localities. Localities correspond to the more recognisable towns and cities of Scotland which can be found within settlements. They also have a minimum rounded population of 500 people or more. Further details on settlements and localities, including the methodology, can be found in the Special Area Population Estimates: Settlements and Localities section of the NRS website. Changes to the methodology and publication are consulted on through the Population and Migration Statistics Committee. Each population weighted centroid was calculated using a median centroid algorithm, the result of which is less influenced by outliers than the result of an algorithm to calculate the mean centroid. The process for creating Settlements / Localities 2020 centroids was automated using ESRI ArcGIS, but the general method is as follows. The median easting and northing coordinate pair for all 2020-2 postcodes within the Settlement / Locality is calculated, giving a notional centroid of the Settlement / Locality. The distance from each of the postcode centroids to the notional (or median) centroid is calculated using Pythagoras' Theorem. The postcode coordinate pair with the shortest distance to the median was then chosen to represent the centroid of the Settlement / Locality.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

false

explanation

Data format

name of format

WMS

version of format

1.3.0

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

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).

Responsible organisations

Responsible party

contact position

Geography Branch

organisation name

National Records of Scotland

full postal address

General Register House, 2 Princes Street

Edinburgh

EH1 3YY

United Kingdom

email address

geographycustomerservices@nrscotland.gov.uk

responsible party role

publisher

Metadata on metadata

Metadata point of contact

contact position

Geography Branch

organisation name

National Records of Scotland

full postal address

General Register House, 2 Princes Street

Edinburgh

EH1 3YY

United Kingdom

email address

geographycustomerservices@nrscotland.gov.uk

responsible party role

pointOfContact

Metadata date

2023-07-11T12:10:36

Metadata language