06/21/2012

1. Aggregations of spatial information for data dissemination 06/21/2012

2. Aggregations of spatial information for data dissemination • SIG IBGE - the map server of the IBGE website • New forms of dissemination of statistical data • National Spatial Data Infrastructure

3. SIG IBGE - the map server of the IBGE website The channel SIG IBGE - Georeferenced Information System enables users to handle spatial information, navigate on maps, search for and integrate information. Among the available maps one can find: • information about the 2010 Census • biomes • climates • endangered fauna • agricultural potential • terrain • soils • vegetation • localities and densities • charts to the millionth scale • geodesy • geology

4. SIG IBGE

5. SIG IBGE - information about the 2010 CENSUS

6. SIG IBGE

7. SIG IBGE The maps in the SIG IBGE channel are also available for visualization in the following formats: • KMZ files, for visualization in Google Earth • online ArcGIS gallery • WMS - web mapping service • webservice - use in other web pages • download for use in GIS programs

8. New forms of dissemination Previous situation: • enumeration area as the smallest spatial unit intersection result area of interest

9. New forms of dissemination Query by block face: • confidentiality is maintained intersection result area of interest

10. New forms of dissemination Applications of a query by block face: • planning for the creation of teaching establishments • study for the conduction of urban construction works • environmental studies

14. New forms of dissemination Statistical Grids: • hierarchical spatial structures formed by regular cells and used to make aggregated data available ID 815959 DOM 23 POP 85 POP_H 32 POP_M 53

15. New forms of dissemination Statistical Grids: • independence from political-administrative boundaries direct comparability • no change over time direct comparability • regular distributioncomputing efficiency • hierarchical structure allows multi-scale analyses • easily handled with GIS tools • vector or raster data structure

16. New forms of dissemination Statistical Grids - Case study: • publicly available data from the 2007 Counting • permanent private housing units (occupied and closed) in areas classified as rural - type 8 • population density obtained from the average number of residents per housing unit in the enumeration area • different types of cells • 37.5” x 37.5” ~ 1.1 Km  1:2,000 scale • 1’15” x 1’15” ~ 2.3 Km  1:4,000 scae • 2’30” x 2’30” ~ 4.6 Km  1:8,000 scale • Case - Pará

21. National Spatial Data Infrastructure Panorama of geospatial information in Brazil: • Produced/acquired and maintained by public institutions at every government level and by private organizations • Users cannot find out: • what is available • where to find information • who maintains the system • how to access data

22. National Spatial Data Infrastructure Solution: • INDE was conceived as a solution towards the integrated management of geospatial data and as a means to release information needed in the decision-making process and in the support to social, economic and sustainable development http://www.inde.gov.br

23. National Spatial Data Infrastructure • an integrated group of technologies, policies, mechanisms and procedures of management and monitoring, standards and agreements • necessary to facilitate and organize the generation, storage, access, sharing, dissemination and use of geospatial data Technology USERS GEOSPATIAL DATA Policies Standards

24. SIG Brazil Geoportal User Producer National Spatial Data Infrastructure Web model: Searches for metadata; accesses and visualizes data Makes data and metadata available

25. www.ibge.gov.br