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Improvement in the diffusion of geographic information u sing new technologies

Improvement in the diffusion of geographic information u sing new technologies. F rench I nstitute. By Sébastien O LIVEAU, F rench I nstitute , P ondicherry. of P ondicherry. Introduction : Uses of geography in the development field. Acquiring the data Storage capacity Acquisition

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Improvement in the diffusion of geographic information u sing new technologies

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  1. Improvement in the diffusionof geographic informationusing new technologies French Institute By Sébastien OLIVEAU, French Institute, Pondicherry of Pondicherry

  2. Introduction: Uses of geography in the development field. • Acquiring the data • Storage capacity • Acquisition • Problem of access to map • Processing the data • Mapping the data • New approaches to mapping • Diffusing the data • New way of diffusing maps • Interactivity • Conclusion : The SIPIS project

  3. Acquiring the data • Processing the data • Diffusing the data • Conclusion • IntroductionUses of geography in the development field. • A tool for development • A technical Support • An Help for decision-making • What is Geographic information ?

  4. Example of a software for simulating rainwater harvesting system A tool for development (http://www.gisdevelopment.net/application/health/overview/healtho0002.htm)

  5. A technical Support Management(infrastructure, natural disaster…)

  6. Example of an health atlas prepared by NATMO An Help for decision-making (http://www.gisdevelopment.net/application/health/overview/healtho0002.htm)

  7. Geo reference DATA + = What is Geographic Information ?

  8. Processing the data • Diffusing the data • Conclusion • Introduction • Acquiring the data • Storage capacity • Acquisition • Problem of access to map

  9. increase in speed of releasing census data on different format 1991: census operation 1991 Census 1994: All India Data at village level on CD 2000: last book released February 2001: census operation 2001 Census June 2001: first maps on the web July 2001 : first books and CDs released Storage capacity :

  10. It’s now possible to stock geographic information for all the south indian villages… Storage capacity :

  11. Storage capacity : … and to analyze them to produce new information, in a synthetic way.

  12. Acquisition through automatic procedure: the Eicher’s city map of Chennai Acquisition :

  13. Census Of India map Problem of access to map :

  14. Problem of access to map : (Necessity to cross the sources)

  15. The port Madras University TIDEL Park Free satellite image of Chennai Problem of access to map : (www.spaceimaging.com)

  16. Free map provided by the US census Problem of access to map : (http://factfinder.census.gov/)

  17. Introduction • Acquiring the data • Diffusing the data • Conclusion • Processing the data • Mapping the data • New approaches to mapping

  18. Mapping the data : From Davis, B, (1996), GIS: a visual approach, Onword press, Santa Fe (USA)

  19. classification More than 70,000 villages 3rd step: contouring 1st step: Aggregation Less than 7 000 units Final map 2nd step: Interpolation New approach of mapping :

  20. Introduction • Acquiring the data • Processing the data • Diffusing the data • New way of diffusing maps • Interactivity • Conclusion

  21. One of the first census map in 2001 New way of diffusing maps : (http://censusindia.net/)

  22. An example of an atlas available on the net New way of diffusing maps : (http://www.usp.ac.fj/~gisunit/pacatlas/atlas.htm)

  23. New way of diffusing maps : An example of an atlas on CD (Atlas du Languedoc Roussillon, GIP RECLUS, Montpellier)

  24. Interactive mapping Interactivity : Interactive mapping (http://factfinder.census.gov/)

  25. Introduction • Acquiring the data • Processing the data • Diffusing the data • Conclusion : The SIPIS project

  26. South Indian Population Information System S.I.P.I.S.

  27. South Indian Population Information System

  28. Census map Old toposheet South Indian Population Information System

  29. South Indian Population Information System Mixing of sources through Geographic Information System (GIS)

  30. South Indian Population Information System Digitalization of villages

  31. South Indian Population Information System 17 000 Tamil villages linked with their census statistics…

  32. South Indian Population Information System Importation of various sources (rivers from ESRI; Elevation was found on the Internet)

  33. South Indian Population Information System New way of mapping: Interpolation of the census data related to irrigation

  34. South Indian Population Information System Querying the data through the map

  35. South Indian Population Information System Interactive Cartography

  36. Storage capacity : 17,000 villages, 250 towns & cities, more than 100 attributes for each (more than 150 Mo of data) Numeric acquisition: easy update possible with the 2001 census data Numeric acquisition: easy mixing of various sources New way of mapping: trend maps of socio-cultural phenomena (literacy, sex-ratio…) Interactivity: querying of the data linked with map Interactivity: interactive cartography

  37. Improvement in the diffusionof geographic informationusing new technologies By Sébastien OLIVEAU, oliveau@ifpindia.org French Institute 11 Saint Louis Street 605001 Pondicherry

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