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Making HIV-related maps in minutes: " Indiemapper " - free mapping tool for everyone. Yuliia Sereda , PhD Institute for Economics and Forecasting, NAS, Ukraine [email protected]. AIDS -2014 Workshop, 24/07/2014, Melbourne, Australia. Basic concepts, reasoning and software - PowerPoint PPT Presentation
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Making HIV-related maps in minutes: "Indiemapper" - free mapping tool for everyone
AIDS-2014 Workshop, 24/07/2014, Melbourne, Australia
Yuliia Sereda, PhDInstitute for Economics and Forecasting, NAS, [email protected]
Objectives• Basic concepts, reasoning and software • Indiemapper tools
• Practical exercise “HIV prevalence and affected populations in Europe”
• Questions and answers
Basic concepts
What is map?A graphic representation
of spatial concepts, where some real characteristics of geographical regions
are replaced with symbols
Photo credit: UNICEF Ukraine
Historical note• The first known world
map was made in 2300 century BC Babylonians (modern Iraq) on a clay tablet
Geographical Information Systems (GIS)• Type of software• Tool-kit• Approach to deal with spatial data
Data• Attribute data – what a feature is
• Nominal data – names or of objects• Categorical data – separates data into groups or classes• Ordinal data – separates data based on quantitative rank• Numerical data – data based on numbers with a
standard interval between them
• Spatial data – where the feature is (co-ordinate based data)
Layers• Data on different themes are stored in separate “layers”• Layers from different sources can be integrated using
location
Complex maps of HIV/AIDS related subjects from widely disparate sources
Why do we need maps?
Comprehensible format to multiple audiences
Estimated prevalence of HIV among young adults (15-49) in Africa (2005, UNAIDS)
John Snow (London, 1854)
• Certain diseases tend to occur in some places and not others
Spatial relations
Map for responsesWhere are the transmission main spots?
Where are the prevention services?
Are the right services in the right places?Do we have adequate coverage?
Needs assessment, program planning and evaluation
• Spatial distribution of disease• Mapping populations at risk• Trends, both temporal and spatial• Input, process, output and outcome evaluation• Planning and targeting interventions
Maps for HIV/AIDS
GIS software
Mapping software (1)
• General:
ArcGIS, GeoCommons, Target Map, CartoDB, Quantum GIS, MapBox, OpenHeatMap, Google Earth
The most commonly used GIS software usually cost $1500 per
user license!
License, registration, extensive analytical capabilities
Mapping software (1)• HIV-related tools:
• STATmapper - interactive maps from 54 surveys in 46 countries. Topics include HIV indicators.
• HIVmapper - maps based on standard HIV indicators from surveys in over 20 countries
• HIV Spatial Data Repository – HIV-related data for 49 countries
• AIDSvu - AIDS information for the USA on a map
Limited number of countries and indicators, non-targeted to specific project