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GIS Portal – dissemination of geostatistics

GIS Portal – dissemination of geostatistics. Igor Kuzma, Statistical Office of the Republic of Slovenia Tomaž Žagar, Geodetic Institute of Slovenia. igor.kuzma@gov.si. tomaz.zagar@gis.si. Overview Dissemination system - data - spatial resolution

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GIS Portal – dissemination of geostatistics

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  1. GIS Portal – dissemination of geostatistics Igor Kuzma, Statistical Office of the Republic of Slovenia Tomaž Žagar, Geodetic Institute of Slovenia igor.kuzma@gov.si tomaz.zagar@gis.si

  2. Overview • Dissemination system • - data • - spatial resolution • - confidentiality & terms of use • KASPeR… • Perspectives & conclusions EFGS - Lisboa 2011

  3. Overview • GeostatisticsofhigherresolutionsinceCensus 1971 • Practicallyapplicablesince 1981 (Registers) • - mostlypointlocated • - variousmethodologies • - griddata • Nationalgridsystem • - D48/GK & D96/TM • - smallestgrid 100 m X 100 m EFGS - Lisboa 2011

  4. Overview • National grid system • - defined in D96(ETRS89)/TM • - reprojected to D48/GK • - linked by cell IDs EFGS - Lisboa 2011

  5. Overview EFGS - Lisboa 2011

  6. Overview x,y - false coordinate x,y x,y - covering the same area - no overlapping problem - applicable to old datasets in D48/GK - regular square gird cell for data presentation EFGS - Lisboa 2011

  7. Dissemination system - data • Population - number, sex, age groups, activity(yes/no), education (3 levels) • Households - number, size • Dwellings - number, area (classes) • Buildings - number, age (classes) EFGS - Lisboa 2011

  8. Dissemination system - data Statisticalsurveys Censuses Register of Real Estate Statistical Register of Employment Register of Spatial Units Register of Dwellings Central Population Register Bussines Register Tax Register Building an Interactive Mapping Atlas EFGS - Lisboa 2011 8

  9. Dissemination system – spatial resolution • Administrative units • - Cohesionregions (NUTS 2) • - Statisticalregions (NUTS 3) • - Municipalities (LAU 2) • - Settlements • Grids • - 10km, 5km, 2.5km, 1km, 500m, 100m • Other • - e.g. areasdefined in municipialspatialplans EFGS - Lisboa 2011

  10. Dissemination system – confidentiality & terms of use • no suppression for current variables • free access and download • source should be acknowledged • high spatial resolution friendly data suppression • grid dissemination rules applied to „other areas“ EFGS - Lisboa 2011

  11. KASPeR Web mapping application for visualization of (statistical) data by selecting spatial units in combination with various cartographic layers from the Google Maps tool. EFGS - Lisboa 2011

  12. KASPeR - features Powered by Google • Google maps cartographic layers • Google maps search feature ... EFGS - Lisboa 2011

  13. KASPeR - features Spatial levels • Automatic zoom option • Extendable (new levels can easily be added) • Input file formats: • ESRI Shapefiles *.shp • Google Earth *.kml • Geography Markup Language (*.gml) ... EFGS - Lisboa 2011

  14. Kasper - features Content • Extandable menu • Input file formats: • ESRI shape files (*.dbf) • PC-Axis (*.px) • Comma-separated values (*.csv) ... (spatial units – defined in spatial levels file – have to be reffered by variables to be shown on the map) EFGS - Lisboa 2011

  15. KASPeR - features individual values forselected variables are obtained by moving the mouse over the spatial unit EFGS - Lisboa 2011

  16. KASPeR - features Adjustable legend classes EFGS - Lisboa 2011

  17. KASPeR - features Adjustable transparency of the data layer EFGS - Lisboa 2011

  18. KASPeR - features Charts are shown when clicked on the spatial unit. EFGS - Lisboa 2011

  19. KASPeR - features Explanatory data can be added to individual variables and/or to group of variables. EFGS - Lisboa 2011

  20. KASPeR - features Screen data can be exported to PDF. EFGS - Lisboa 2011

  21. KASPeR - background Dissemination system in practise EFGS - Lisboa 2011

  22. Perspectives & conclusions • KASPeR • - time slider • - optional view function • - automatic upload & update from SI-STAT database • (*.px files) • - various colour schemes in the legend • - classification scheme • - „hide“ navigational/info window EFGS - Lisboa 2011

  23. Perspectives & conclusions • User response • - foreign users prefer administrative units • - decision makers prefer grids to support various • strategic plans (spatial patterns, clusters) • - municipial spatial planners use 100m grid or areas • defined in municipial spatial plans • - media & conferences EFGS - Lisboa 2011

  24. Perspectives & conclusions • INSPIRE • - INSPIRE grid • - metadata etc. EFGS - Lisboa 2011

  25. Thank you! http://www.gis.si/kasper/en/index.html http://www.stat.si/GIS/baza.aspx?lang=en EFGS - Lisboa 2011

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