An Introduction to 2011 Census Geography

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An Introduction to 2011 Census Geography

  1. 1. An introduction to2011 Census geographyJames CroneWebinar17 May 2013
  2. 2. WelcomeAn introduction…James CroneUK Data ServiceEDINA GeoServicesUniversity of Edinburgh
  3. 3. This webinar is one in a series to launch the UK Data Service:•An introduction to data available from the UK Data ServiceMONDAY 13 May 2013•Broadening access: Improving the impact of social dataTUESDAY 14 May 2013•Looking after and managing your research dataWEDNESDAY 15 May 2013•UnDISCOVERed riches: Finding and accessing data via the UK DataServiceTHURSDAY 16 May 2013•An introduction to 2011 census geographyFRIDAY 17 May 2013Welcome
  4. 4. What is the UK Data Service?• a comprehensive resource funded by the ESRC• a single point of access to a wide range of secondarysocial science data• support, training and guidance
  5. 5. Who is it for?• academic researchers and students• government analysts• charities and foundations• business consultants• independent research centres• think tanksukdataservice.ac.uk
  6. 6. What is Census Support?• access to, and user support for, data from the last fiveUK population censuses (1971 – 2011)• download of data through Census Support is currentlyrestricted to UK Academic userscensus.ukdataservice.ac.uk
  7. 7. PollHave you used census data before?• No• Yes, for the UK• Yes, for outside the UK
  8. 8. The 2011 Census andcensus geography
  9. 9. What is a census?“The total process of collecting, compiling, evaluating,analysing and publishing demographic, economic andsocial data pertaining at a specified time, to all personsin a country or well delimited parts of the country”United Nations (1998)
  10. 10. The census in the UKContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  11. 11. Household census questions• accommodation type – house or flat?• own or rent?• how many rooms?
  12. 12. Individual census questions• male or female?• age?• country of birth?• health?
  13. 13. What sort of output data is produced?
  14. 14. Output census data is geographic
  15. 15. Geographical visualisation / analysisContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  16. 16. Census Output AreasContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  17. 17. Making 2011 output areas• use where possible 2001 output areas• built from aggregations of postcodes• have roughly similar-sized populations• group together socially similar households• align with local authority boundaries• align to road centrelines and railways
  18. 18. 2011 Census geography hierarchyContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  19. 19. Different geographic scalesContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  20. 20. PollWhich years have you used UK census data for?• 1971• 1981• 1991• 2001• 2011
  21. 21. 5 key differences in2011 Census geography
  22. 22. Difference #1: output area change
  23. 23. 97.4%How much output area change?
  24. 24. What kind of output area change(in Leeds)?Map created by Alex SingletonContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  25. 25. Difference # 2 : open dataYou are free to:• Copy, publish, distribute and transmit the Information• Adapt the Information• Exploit the Information commerciallyYou must, where you do any of the above:• Acknowledge the source of the informationContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  26. 26. Difference #3: workplaces• Introduction of a Workplace Zones Geography in 2011
  27. 27. Workplace zones vs. output areasContains National Statistics data ©Crown Copyright and database right 2012Contains Ordnance Survey data ©Crown Copyright and database right 2012
  28. 28. Difference # 4: identifiers
  29. 29. Entities + Instances = standard identifersE00126679 E07000118
  30. 30. Difference # 5: boundary versions
  31. 31. Extent of the Realm boundariesContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  32. 32. Clipped boundariesContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  33. 33. Clipped = more familiar mapsEOR ClippedContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  34. 34. Generalised boundariesContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  35. 35. Generalised = reduced file sizeUngeneralised Generalised125 MB450 MBContains National Statistics data © Crown Copyright and database right 2012Contains Ordnance Survey data © Crown Copyright and database right 2012
  36. 36. 2011 Census data inUK Data Service Census Support
  37. 37. UK Data Service Census Support
  38. 38. PollWhich Census Support applicationshave you used before?• InFuse / Casweb• Easy Download / Boundary Data Selector• GeoConvert• Postcode Directory Download
  39. 39. Census Support InFuse
  40. 40. Census Support Boundary Data Selector
  41. 41. Census Support Thematic Mapper
  42. 42. More information
  43. 43. Census2011Geog Projectcensus2011geog.census.ac.uk
  44. 44. Census Support Helpukdataservice.ac.uk/help
  45. 45. Forthcoming Census Support traininghttp://goo.gl/RpYNA

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