Mapped: London’s Fire Engine Callouts

This map shows the geography of fire engine callouts across London between January and September 2011. Each of the 144,000 or so lines represents a fire engine (pump) attending an incident (rounded to the nearest 100m) and they have been coloured acc...


What’s so Great About a World Flight Paths Map?

The stunning map depicting global flight paths produced by Michael Markieta has proved extremely popular (over 13k shares on the BBC when I last checked). The data used to create it (from OpenFlights) have been around for years and there have been m...


Mapped: Twitter Languages in London

  [zoomit id=”IIY6″ width=”auto” height=”400px”] **Update: You can see a new fully-interactive version here** Last year Eric Fischer produced a great map (see end of post) visualising the language communities ...


Fast Thinking and Slow Thinking Visualisation

Last week I attended the Association of American Geographers Annual Conference and heard a talk by Robert Groves, Director of the US Census Bureau. Aside the impressiveness of the bureau’s work I was struck by how Groves conceived of visual...


Deceptive in their Beauty?

  Finding ways to effectively map population data is a big issue in spatial data visualization.  The standard practice uses choropleth maps that simply colour administrative units based on the combined characteristics of the people that live t...


Mapped: Christmas Around the World

It would be a shame to end the year without a festive map! Jack Harrison (@jacksfeed) is studying for a research masters in “Advanced Spatial Analysis and Visualisation” at UCL. I teach on the course and it obviously hasn’t worked J...


The Best of 2011

As 2011 draws to a close it is worth reflecting on what, I think, has been a defining year for mapping and spatial analysis. Geographic data have become open, big, and widely available, leading to the production of new and interesting maps on an almo...


Mapping Academic Tweets

Another day, another Twitter map- this time showing the global distribution of tweets that link to academic journal articles. I am always a bit skeptical of Twitter data (especially with location information) but as an academic seeking to publish in ...



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