Tag Archives: geovisualisation

A population-centric map projection

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Here is some material from a presentation at this year’s  AAG Annual Conference in Washington DC. The presentation People powered maps: A population-centric map projection was given in the session on Topics in GIS, Remote Sensing, and Spatial Analysis and showed some new works on our grid-based cartograms (as presented at GISRUK 2009 and ESRI UC 2009).
The following animation shows the transformation of a topographic map of the United States, ending in a grid-based population cartogram (and then reversing). Please notice that loading the animation takes a while on slower internet connections:

USA Animated Population Cartogram with Topography
(click for larger view)

This is the full presentation given at the AAG Meeting. Please note that the animated parts such as the above animation are not shown in this Slideshare version:

The content on this page has been created by Benjamin Hennig. Please contact me for further details on the terms of use.

European debt levels in 2010

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Alistair Darling is just about to announce the UK’s budget this Wednesday in the run-up to the forthcoming General Election, while the Eurozone countries stew over the fate of Greece and its implications for the European currency. In the reality of a world economic crisis, it’s everyone for himself, and Europe seems far from being a united community.
The following map compares the total debt of the EU-27 countries and the debt’s share of the GDP – revealing some interesting views: In sheer numbers, the PIGS are not alone (Greece, in fact, almost not counting). Eventually, we’re all in the same boat in the sea of gloom (click map for larger view)…

Map of debt and the debt/gdp ratio in the countries of the European Union 2010

The content on this page has been created by Benjamin Hennig. Please contact me for further details on the terms of use.

The Population of the Island of Ireland

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This map is not yet shown in worldmapper’s collection of country cartograms, as we don’t show maps of larger islands there if they are politically divided. As the Irish Islanders are all celebrating their culture today, here is how the full island’s population distribution looks like in the worldmapper gridded cartogram style:

Happy Paddy’s Day…
Update 2011: See a new version of this map using a NASA satellite image here.

The content on this page has been created by Benjamin Hennig. Please contact me for further details on the terms of use.

Vancouver 2010 medal count

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The Winter Olympics in Vancouver yielded some great visualizations, with the New York Times work being amongst the top ones. They are showing off a map of the Winter Olympic Medals in the tradition of the Dorling cartograms. They also did a great job on a 3D map of the venues.
For those who want for worldmapper style maps, here is the relief: The worldmapper map of the actual medal count. The following is transformed due to a country’s total number of medals it has won.

A larger version of the map can be viewed by clicking on the image.

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ArcUser article: Re-Mapping the World’s Population

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My contribution to the ESRI UC 2009 found its way into the Winter 2010 edition of ArcUser:

  • Hennig, B.D., Pritchard, J., Ramsden, M., and Dorling, D. (2010). Remapping the World’s Population. Visualizing data using cartograms. ArcUser 2010 (1), 66-69.
    pdf icon Article as PDF ; Article online

    • The slideshow from last year’s talk at the ESRI UC Is now also available online to watch on Slideshare:

    The content on this page has been created by Benjamin Hennig. Please contact me for further details on the terms of use.

    Gridded cartogram tutorial

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    This is a short slideshow showing the basic steps that are needed to do your own gridded population cartograms (with a quite rough 1 degree grid – good for starting with this whole thing). Software needed for this simple click-through tutorial are ArcGIS and ScapeToad. If you want to go one step further, I’d recommend using the ArcScript Cartogram Geoprocessing Tool by Tom Gross, even though this is not featured in this demo:

    The tutorial was given in October 2009 to students of the Module GEO6016 Data, Visualisation and GIS in the MSc in Social and Spatial Inequalities at the University of Sheffield.

    The content on this page has been created by Benjamin Hennig. Please contact me for further details on the terms of use.