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This presentation discusses geographic definitions and classifications, and provides guidance on linking them together using accessible online resources. It includes examples such as postcodes, administrative areas, output areas, and datazones.
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Geographic Definitions and Linking Orian Brook, University of Stirling Presentation to the Scottish Civil Society Data Partnership Project (S-CSDP), Webinar 3on ‘Dealing with data: Using standard measures and variables and linking together datasets’ www.thinkdata.org.uk, 10 Mar 2016
Scottish (and UK) Geographic Areas • Discuss geographic definitions and classifications • Introduce how to link them together using accessible online resources S-CSDP, 4 Mar 2016
Postcodes Originally just for delivering the post, now a multipurpose tool! Almost 150,000 in Scotland Postcode unit: G12 8QQ 17 households Postcode sector: G12 8 2,000 households Postcode district: G12 5,500 households Postcode area: G Very dynamic – building, demolition, no longer in use 220,000 current defined, new releases every quarter S-CSDP, 4 Mar 2016
Administrative Areas Output Areas – 55 households • smallest area for which Census data is released • designed to have approximately equal population in each • recalculated for every census • approx 55 households in Scotland Datazones – 377 households • Aka (in England & Wales) Super Output Areas • Larger statistical units, used for eg deprivation indices Other useful areas: • Wards, Parliamentary constituencies, health boards, Local Authorities, S-CSDP, 4 Mar 2016
How to they fit? Postcodes – a great example of administrative data! • Unit postcodes good enough match to administrative geographies (0.2% split between more than one OA) • But postcode sectors and larger are not – get full postcodes! • OAs fit perfectly into Datazones, and well enough into other administrative geographies • But other administrative geographies don’t fit into one another S-CSDP, 4 Mar 2016
Lookup basics using website www.doogal.co.uk – free tool introduced in last webinar S-CSDP, 4 Mar 2016
Linking postcodes to deprivation data http://www.gov.scot/Topics/Statistics/SIMD/SIMDPostcodeLookup - spreadsheets provided by Scottish Government S-CSDP, 4 Mar 2016