Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings Volume 18 Guimarães, Portugal Article 9 2018 Development of a QGIS Plugin to Dasymetric Mapping Nelson Mileu Universidade de Lisboa Margarida Queirós Universidade de Lisboa Follow this and additional works at: https://scholarworks.umass.edu/foss4g Part of the Geographic Information Sciences Commons Recommended Citation Mileu, Nelson and Queirós, Margarida (2018) "Development of a QGIS Plugin to Dasymetric Mapping," Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings: Vol. 18 , Article 9. DOI: https://doi.org/10.7275/3628-0a51 Available at: https://scholarworks.umass.edu/foss4g/vol18/iss1/9 This Paper is brought to you for free and open access by ScholarWorks@UMass Amherst. It has been accepted for inclusion in Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings by an authorized editor of ScholarWorks@UMass Amherst. For more information, please contact
[email protected]. Development of a QGIS Plugin to Dasymetric Mapping Nelson Mileua,*, Margarida Queirósa a Institute of Geography and Spatial Planning, Universidade de Lisboa, 1600-276 Lisbon, Portugal. Abstract: Demographic data is usually represented by a choropleth map, where the statistical data is aggregated to areal units. This type of representation has several limitations associated with spatial analysis and distribution. A common alternative to display statistical data in meaningful spatial zones is the dasymetric mapping technique. Though dasymetric mapping has existed for many decades, the open source GIS tools to explore dasymetric mapping methods are scarce. In this paper, a Geographical Information System (GIS) open source application was developed in QGIS software that applies the dasymetric mapping method to the Portuguese Guimarães municipality 2011 Census block-group populations and uses Corine Land Cover Data Set to redistribute the block-group populations into a 25-m grid.