janaka rajapaksha department of census and statistics(dcs) sri lanka
DESCRIPTION
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) - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/1.jpg)
UN workshop for South Asian countries on collection & dissemination of socio-economic data
from population & housing censusesNew Delhi,28-31 may 2012
Janaka RajapakshaDepartment of Census and Statistics(DCS)Sri Lanka
Use of GIS Mapping & Spatial Analysis
Country Presentation – Sri Lanka
![Page 2: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/2.jpg)
OutlineCensus Mapping
-Pre Enumeration Stage-Preparation of based maps
- Enumeration
-Post EnumerationData Dissemination using Thematic mapsData Dissemination through Web-using maps Spatial Analysis
2
![Page 3: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/3.jpg)
Census Mapping- Pre Enumeration Stage Technologies 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
![Page 4: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/4.jpg)
Census Mapping- Pre-Enumeration Stage - Used Satellite images
![Page 5: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/5.jpg)
Census Mapping- Pre-Enumeration Stage - Used Digital maps
![Page 6: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/6.jpg)
Census Mapping- Pre Enumeration Stage - Used Digitized GN division Boundaries in 2001 census
![Page 7: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/7.jpg)
Census Mapping- Pre-Enumeration Stage -Used GPS in census mapping
![Page 8: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/8.jpg)
Census Mapping- Pre-Enumeration Stage -prepared GN Division Map(2011)
![Page 9: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/9.jpg)
Small Area Statisticsby Census Blocks (CBs) - MRCB
9
![Page 10: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/10.jpg)
MRCB Data Base
![Page 11: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/11.jpg)
Enumeration Area Coding
2001• 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)
2011• A0: (5)
1 1 0 1 2 0 9 1 2 5 2 3 2 2 0 7 0 6
1 0 0 0 1
9 8 6 6 0
![Page 12: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/12.jpg)
Census Mapping- Pre Enumeration Stage -Prepared Census Block Map(2011)
![Page 13: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/13.jpg)
Sri Lanka
Provinces (9)Districts (25)
Divisional Secretariat Divisions (330)
GND’s (14,022)
Illustration of nested Administration Hierarchy of sri Lanaka
Census Blocks (65,012)
![Page 14: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/14.jpg)
Modes of Data Dissemination
Printing : Departmental Publications
Electronic Media (CD ROMs and DVDs)
Census Info/ Dev info
Internet : Web site Static web pages (html, PDF, excel)Interactive online tools (tabulating/graphing/mapping tools, etc) Census Info
Geographic information systems (GIS)
![Page 15: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/15.jpg)
Population and pop- density Patterns by Districts-2001
![Page 16: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/16.jpg)
Population and pop- Density Patterns by DS Divisions-2001
![Page 17: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/17.jpg)
District Level Population By sector wise and Ethnic grups-2001
Legend Urban Rural Estate
![Page 18: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/18.jpg)
18
Population density Patterns of colombo District-2001
![Page 19: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/19.jpg)
Analysis using Thematic Maps-
Ranking DS Divisions by Poverty -2006
![Page 20: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/20.jpg)
Analysis using Thematic Maps-Classification of GN Divisions by Selected Unsatisfied Basic Needs(UBN): 2007
![Page 21: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/21.jpg)
Analysis using Thematic Maps-Tsunami Mapping
![Page 22: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/22.jpg)
Thematic Mapping- Data Dissemination through Web
![Page 23: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/23.jpg)
Spatial Analysis -Multiple Buffers
![Page 24: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/24.jpg)
Spatial Analysis – Use of GIS for Site Selection -Selection of Lands for Construct Southern Highway
![Page 25: Janaka Rajapaksha Department of Census and Statistics(DCS) Sri Lanka](https://reader036.vdocument.in/reader036/viewer/2022062309/56815a8e550346895dc8049d/html5/thumbnails/25.jpg)
Thank You