1 / 25

Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka

UN workshop for South Asian countries on collection & dissemination of socio-economic data from population & housing censuses New Delhi,28-31 may 2012. Use of GIS Mapping & Spatial Analysis Country Presentation – Sri Lanka. Janaka Rajapaksha Department of Census and Statistics(DCS)

bisa
Download Presentation

Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UN workshop for South Asian countries on collection & dissemination of socio-economic data from population & housing censusesNew Delhi,28-31 may 2012 Use of GIS Mapping & Spatial Analysis Country Presentation – Sri Lanka Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka

  2. Outline • Census Mapping -Pre Enumeration Stage-Preparation of based maps - Enumeration -Post Enumeration • Data Dissemination using Thematic maps • Data Dissemination through Web-using maps • Spatial Analysis

  3. Census Mapping- Pre Enumeration StageTechnologies Used for preparing base maps in 2010 Round Census Use GIS related software(Arc map/Arc info) Satellite images Digital maps GPS Equipments - GPS Pints were taken for unclear boundaries Digitized GN division Boundaries in 2001 census

  4. Census Mapping- Pre-Enumeration Stage • - Used Satellite images

  5. Census Mapping- Pre-Enumeration Stage - Used Digital maps

  6. Census Mapping- Pre Enumeration Stage • - Used Digitized GN division Boundaries in 2001 census

  7. Census Mapping- Pre-Enumeration Stage -Used GPS in census mapping

  8. Census Mapping- Pre-Enumeration Stage -prepared GN Division Map(2011)

  9. Small Area Statisticsby Census Blocks (CBs) - MRCB

  10. MRCB Data Base

  11. Enumeration Area Coding 2001 2011 A0: (5) • A1 : Province & District: (2) • A2: Polling Division(3) • A3: DS Division:(2) • A4: GN Division(3) • A5: Sector(U/R/E)(1) • A6: MC/UC/PS:(2) • A7: Ward/Village/Estate:(3) • Census Block No: (2)

  12. Census Mapping-Pre Enumeration Stage -Prepared Census Block Map(2011)

  13. Sri Lanka Illustration of nested Administration Hierarchy of sri Lanaka Districts (25) Provinces (9) Census Blocks (65,012) Divisional Secretariat Divisions (330) GND’s (14,022)

  14. Modes of Data Dissemination Printing : Departmental Publications Electronic Media (CD ROMs and DVDs) Census Info/ Dev info Geographic information systems (GIS) • Internet : Web site • Static web pages (html, PDF, excel) • Interactive online tools (tabulating/graphing/mapping tools, etc) Census Info

  15. Population and pop- density Patterns by Districts-2001

  16. Population and pop- Density Patterns by DS Divisions-2001

  17. District Level Population By sector wise and Ethnic grups-2001 Legend Urban Rural Estate

  18. Population density Patterns of colombo District-2001

  19. Analysis using Thematic Maps- Ranking DS Divisions by Poverty -2006

  20. Analysis using Thematic Maps-Classification of GN Divisions by Selected Unsatisfied Basic Needs(UBN): 2007

  21. Analysis using Thematic Maps-Tsunami Mapping

  22. Thematic Mapping- Data Dissemination through Web

  23. Spatial Analysis -Multiple Buffers

  24. Spatial Analysis – Use of GIS for Site Selection -Selection of Lands for Construct Southern Highway

  25. Thank You

More Related