Wherecamp Berlin 2012 Population Grids


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Wherecamp Berlin 2012 Population Grids

  1. 1. PopulationGridsMax Friedrich Hartmann@mxfh
  2. 2. Talking Points• Aggregation and Disaggregation of Population Data• Data Sources
  3. 3. 03 Population GridsDisaggregation?Aggregation?Dasymetric Map ?Raster!
  4. 4. 04 Population Grids Gridded Population of the World, version 3 (GPWv3) World Population Density 2010 (Estimate) http://sedac.ciesin.columbia.edu/gpw/
  5. 5. 05 Population Grids Gridded Population of the World, version 3 (GPWv3) World Population Density 2010 (Estimate) http://sedac.ciesin.columbia.edu/gpw/
  6. 6. 06 Population GridsChoropleth mapping dot mapping proportional symbols Conventional cartographic population mapping techniques Filipe Batista e Silva
  7. 7. 07 Population Grids Spain - Population Density (NUTS-3 Level) http://epp.eurostat.ec.europa.eu/statistics_explained/index.php/Population_grids
  8. 8. 08 Population GridsDrawbacks of Conventional Population Mapping Filipe Batista e Silva • Size of areas is partly very heterogenous since they are only affected by administrative borders and zoning • Structural phenomenos can be hidden by accident or deliberately Modifiable Areal Unit Problem (MAUP) Gerrymandering • Within a single statistical area homogenity is assumed which does’t exist in the real world distribution • Important land features (rivers, mountain ranges) are not considered
  9. 9. 09 Population Grids Geostat Population grid 2006 http://epp.eurostat.ec.europa.eu/statistics_explained/index.php/Population_grids
  10. 10. 10 Population Grids Quelle: UMS 2414 RIATE (CNRS-DATAR-Université Paris 7 (Hrsg.): ESPON-Projekt 3.4.3 - The modifiable areas unit problem. Endbericht 2006
  11. 11. 11 Population Grids Geostatistical create a spatial reference frame for all kinds of geodata. The are independent from admin borders and allow a purely topic related area selection. Ingrid Kaminger, Auf dem Weg zu einer rasterbasierten Regionalstatistik in Europa
  12. 12. 12 Population GridsAdvantages/Disadvantages of gridsAdvantages• Ready for universal use• Ready for automation• Independent of borders• High resolutionDisadvantages• Privacy Issues• Process of creating the grid is quite complex
  13. 13. 13 Population Grids Aggregation Credits: Eurostat GEOSTAT
  14. 14. 14 Population Grids Ideally: Aggregation Eurostat GEOSTAT
  15. 15. 15 Population Grids Erich Wonka (2010)
  16. 16. 16 Population GridsDisaggregationStatistical data is only available in bigger statistical unitsDesireable is a grid with a fine grid with cells smalle than the area unit.One solution is the reversal of aggregation - disaggregation. (dasymetric mapping)Information density is increases by deduction from know spatial
  17. 17. 17 Population Grids Credits: Filipe Batista e Silva
  18. 18. 18 Population GridsAuxilliary DataRemote sensing• Land use• Light emmissions• Land coverMap data• Road networks• Building footprints• Land cover
  19. 19. Population GridsLiterature/LinksWonka, E. (2009): Regionalstatistik in Österreich auf der räumlichen Bezugsbasis von regionalstatistischen Rastereinheiten. http://www.oeaw-giscience.org/download/RasterStatistikWonka.pdfWonka, E.; Kaminger, I.; Katzlberger, G. (2009): Regionalstatistische Auswertungen mit geographischen Rastern in der Raumplanung. In: Kartographische Visualisierung in der Raumplanung IzR 10/11.2009, Hrsg.: BBSR im BBR. http://www.bbsr.bund.de/cln_032/nn_23470/BBSR/DE/Veroeffentlichungen/IzR/2009/10__11/Inhalt/inhalt.htmlGotthard Meinel, Ulrich Schumacher (Hrsg.) (2010): IÖR Schriften 52, Leibniz-Institut für ökologische Raumentwicklung http://www.ioer.de/fileadmin/internet/IOER_schriften/Buch_IOER_Schriften_Band_52_Meinel.pdfWurm, M. et al. (2011): Zensus der Zukunft? Erdbeobachtung zur räumlichen Abschätzung der Bevölkerungsverteilung http://elib.dlr.de/72097/1/wurm_et_al_2011_standort-zensus_der_zukunft.pdfFilipe Batista e Silva (2011): The effect of ancillary data in population dasymetric mapping http://www.efgs.info/workshops/efgs-2011-lisboa-portugalGeostat population grid 2006 Poster: http://www.ivie.es/news/2012/ws_res01.phpPopulation Grids Eurostat Wiki: http://epp.eurostat.ec.europa.eu/statistics_explained/index.php/Population_gridsEuropean Forum for Geostatistics: http://efgs2011.ine.pt/doku.php?id=presentations
  20. 20. Population GridsData SourcesGEOSTAT 2006 grid datasethttp://epp.eurostat.ec.europa.eu/portal/page/portal/gisco_Geographical_information_maps/popups/references/population_distribution_demographyPopulation density disaggregated with Corine land cover 2000, EU, 100m resolutionhttp://www.eea.europa.eu/data-and-maps/data/population-density-disaggregated-with-corine-land-cover-2000-2