Category Archives: data & visualization

Cultivating Graphicacy While Teaching GIS?

There’s a side to working with maps and data that’s easy to overlook when we design our courses, and it falls under the heading of graphicacy.  My own quick definition of graphicacy is making, interpreting and critiquing of information in non-text form, including graphs, tables, figures, charts, AND MAPS.   I can’t remember first learning the word, but this Aldrich and Shepphard article (pdf) was one of the first that explained the concept.

I’ve come to strongly believe that graphicacy is a necessary and essential component of education.  One of the obvious reasons is how much we’re confronted with information in graphical form, such as this world population map from The Economist or the New York Times recent map of tornadoes and other natural disasters.  A good sense of graphicacy means that you are critical and creative with data, know when to question a representation, can envision alternative representations, can interpret the information and articulate its message.

The use of GIS presents numerous opportunities to develop strong graphicacy skills, but it’s definitely not an automatic outcome.  It includes the classification of data, and the cartographic design of layouts, but it goes well beyond that. It’s fundamental to how we expect to communicate with the rest of the world about what a GIS analyses means.  It’s not something that’s a separate topic to be added to a GIS course. It’s an understanding that needs to be cultivated throughout, in every lab and exercise that a student completes, and in every mapped representation that they create and encounter.  It’s the understanding of how maps complement and support learning on many levels.

new infographics-based weather site

My favorite new site for info graphics?  Weatherspark.  Possible to spend a focused moment learning the current and relevant, or a sprawled hour reminding yourself of that blizzard four years ago that disrupted your life.  Brilliant access to data.  Nice work, Jacob and James.

Google Public Data Explorer

Google has released an application that allows you to visualize one or more data sets across different formats, including scatter plots and histograms.  The initial collection of data is somewhat eclectic; many of these are the ones originally included in GapMinder, which Google acquired back in 2007.  This is the first time I’ve seen them do anything with the software.

 

 

FedEx makes cartograms of global information data

Interesting to see FedEx get into the mapping and visualization business, though not surprising because they’re active participants in a global distribution network of information.

They chose to make cartograms, a cartographic format that will confuse the uninformed casual observer of these maps but may inspire some additional learning (about mapping and about the interaction of the variables). Cartograms distort the size and shape of a mapped area (in this case, countries) on the basis of some variable. If cartograms float your boat, check out these at Worldmapper.

China’s population


Nice graphic to convey the massive size of China’s population.

Yann Arthus Bertrand’s imagery

The imagery of Yann Arthus Bertrand is absolutely captivating. The man is brilliant at capturing spatial patterns and I use scanned versions of pictures from the book to teach spatial statistics. Now it’s a movie. I could watch this for the 2nd time but should probably get up and do something about the earth instead.

Finds at Where 2.0

Last week I was lucky enough to have two days at Where 2.0 in San Jose. Spent the whole plane ride up with “Do You Know the Way to San Jose” stuck in my head.

Highlights of the conference for me:

Cartifacts So far this is only for LA and NYC, but they’ll be doing more. Best part of it (apart from the nice cartography) is the small lens tool itself (the small icon in upper left of screen). That allows you to change the zoom level within the circle itself and click on different images (i.e., historic maps and other layers).

Wild Style City – Kind of wonky to use it, but when you get it to work, you can walk down the street, find a clean piece of wall, and make your own graffiti.

Flickr “neighborhoods” – Flickr is doing some cool work with its millions of geotagged images to generate new versions of “regions” and “neighborhoods.” For those of us who like to play with shapefiles, they’ve made these available too.

Andrew Turner was there to promote GeoCommons. I’ve been using GeoCommons in short mapping workshops at Redlands as it’s one of the easiest tools for quick and customizable web-based choropleths. I remember saying a couple of years ago that it was just a matter of time for someone to make an application like this.

One of the best community mapping sites I’ve ever come across, these folks from New Orleans were there to talk about how they built their maps and did their analyses – http://www.gnocdc.org/repopulation/

These panoramic images are phenomenal – http://www.360cities.net/. The two brothers who started the company gave the presentation and talked about the technology involved and how they now have 400+ photographers around the world contributing imagery. It’s not just cities…

Most phenomenal 3D imagery you can imagine – this Swedish guy from C3 Technologies gave an ad hoc demo of their product. The small video won’t do it justice, but it’s absolutely amazing in “real life” – http://en.oreilly.com/where2009/public/schedule/detail/9423. Just a few minutes long.