Regional Seminar on Dissemination and Spatial Analysis of Census Data GIS and Census Mapping - The Cape Verde experience

1. Regional Seminar on Dissemination and Spatial Analysis of Census Data GIS and Census Mapping - The Cape Verde experience in the use of GIS technologies in the 2010 Census Presented by Leonilde Lima Nairobi, Kenya, 14-17, September, 2010

2. Summary • INE - GIS Infrastructure – 2010 Census Mapping – Dissemination • Dissemination Strategy • Objectives – Web Dissemination • Objectives • Products • Services • Users • Data Contents

3. GIS Infrastructure • Support the production and the dissemination of data. • Statistics Production: – Geo referencing all statistical information; – Map Supply • Dissemination: – Include the geographical component in all dissemination products • Studies – Using spatial analysis tools

4. Technology Browser Client Internet Web Server Application Server Server Spatial Server Data Source

5. 2010 Census Mapping - June 16 – 10, 2010 - Electronic questionnaires - PDA - “Everyone counts, we count with everyone”

6. Step 01-Digitalization of the 2000 Enumeration Areas and Buildings

7. Step 01-Digitalization of the 2000 Enumeration Areas and Buildings GeoCode 5 1 2 001 0023 EA Point/Building Island Freguesia Concelho

8. Step 2 – Pre Census/Census cartogtraphy preparation Map Productions and Printing PDA projects - 561 Enumeration areas (2000 boundaries) Image EA boundary Buildings

9. Step 03 - Census Cartographic database • Correction and stabilization – Not valid points, – Inconsistent limits, • Urbanization • …

10. Step 04- Delimitation of the 2010 enumeration areas • 150 / 180 households for urban / rural areas

11. Step 05- Field confirmation and DR boundary descriptions FICHA 1 – Descrição do limite do DR………|0|0|1| Ilha: Boavista |5| Concelho: Boavista |5|1| Freguesia: Santa Isabel|5|1|2 Descrição do limite do DR Ponto inicial: Porto Sal-Rei Do ponto inicial, Porto de Sal-Rei, percorre-se a estrada do porto até ao cruzamento com a estrada Praia Cabral. Uma vez aqui vira-se à direita subindo a estrada e passando pelo Father&Son Propriety Chegada ao topo vira-se à esquerda na Delegação do Ministério de Educação seguindo em direcção à Igreja do Nazareno (Av. Dos Emigrantes) passando por Extra carnes e vira-se à direita contornando a praceta (Rua de Caboco) seguindo em frente. Depois atravessa uma rua e vira à direita na Botique Djena. Segue em frente passa pelo Bar Silva, vira à esquerda na primeira rua, passando pelo Bar Marítimo, Rua da Cruz, Rua Santa Bárbara e vira-se à direita (Av. Dos pescadores) até à orla marítima contornando a orla até ao ponto inicial (Porto de Sal-Rei). Bairro: Riba D’Olte Feito por: Maria Sapinho Pires

12. Step 06 – Pilot census and Census preparation Map Productions and Printing PDA projects – 949 Enumerations Areas (2010 boundaries) – New Images – New EA limits – New buildings

13. Step 07- Census geographic database • Correction and stabilization – December 2010 • Step 08 – Map Dissemination (Static) - June 2011 • Step 09 – SIG INE (Dinamic) - December 2011

14. Ressources • Softwares – Geobase – Arcview – ArcGis – Global Mapper – IBGE Mobile GIS

15. Ressources • Hardware – PC’s – 1 Plotter – 3 - A3 Printers – PDA’s

16. Ressources • Liveware / People – 8 technicians (Geography, Cartography, Statistics, Technology). – Computer operators – Field operations staff

18. Ressources • Others – Aerial photography – Municipalities 1:2000 urban level 1:10 000 rural level – Satellite Imagery – Google earth – Others institutions

19. Census History - Dissemination Format in which product/service available The dissemination of the 2000 census results, had been limited to tables and reports. Product/Service Press release Tabulated data Preliminary results Paper Final results Paper / internet / CD Results by smallest geographic unit Paper / CD Posters, brochures, etc. Paper Analytical and thematic statistical reports Paper / Internet Customized data requests Internet / INE

20. 2010 - Dissemination Strategy • Good practices from 2000 (CD, paper, ateliers, folders, reports,…) • Easy the access to information – Free access to all census data, including geographic data • Make the internet the core dissemination vehicle • Enable advanced users to directly handle the information.

21. Objective Promote statistical literacy, data awareness and usefulness, as a basic support instrument for the formulations and decisions on public policies and private businesses.

22. Dissemination via Web • Target – Advanced users • GIS Specialists – Active Users • Others specialists with knowhow in GIS – Ordinary Users

23. Dissemination via Web • Products – Static Information • Thematic maps • Census Atlas • … – Format • PDF, GIF, JPEG, …

24. Dissemination via Web • Products – interactive Information • online map Production • online Atlas

25. Dissemination via Web • Contents – Detail level – The lowest possible having into account confidentiality issues • Administrative Division – Country – Island - Ilha – Concelho – Freguesia – Cidade/Vila/Zona – Bairro / Lugar

26. Territorial's units • Statistics divisions – EA’s • Basic mapping data – Public utilities – Roads • Others – Agricultural regions – Touristics zones

27. Tools • Census Info • Alov Map • Redatam / IMIS • CSpro • PC Axis / PX Map • Customized • ArcGIS/ArcServer

29. Thank you! Leonilde Lima llima@ine.gov.cv - leonildelima@yahoo.com