Wednesday, November 19, 2014

Misleading Buffalo Snow Maps

As we prepare to spend Thanksgiving with my wife's family in western New York, here are some maps of what we could be in for. This one, posted on Flowing Data a few years ago does a nice job of showing the lake effect snowbelt south of Buffalo. But there are problems...
Green implies that the rest of the area including Buffalo (inside the dashed box) is not so bad. However, a look at the legend shows that green is up to 80 inches a year and the yellow that appears in many of the suburbs is 90-100 inches. Chautauqua County people may consider 80 inches to be minor but for the rest of us this color choice is terribly misleading.

The map also may need an update as parts of the region are getting half their average this week.
 Be "4 Warned" - this is another misleading map. How much snow will we see in Rochester? Apparently nothing even though family members tell us otherwise. The dropoff from 18-24" to nothing at the Livingston-Wyoming county line is remarkable as is the sudden lack of snow in Erie County, Pennsylvania. No data and no snow are not the same thing so don't treat them the same.

Thursday, November 13, 2014


Sometimes a poorly colored map makes it difficult to distinguish land and water. What if they were reversed?  "Swap dirt and water" and you get Inversia.

Of course, it's not that simple. Creator Chris Wayan lays down a series of ground rules. For example, the most shallow ocean areas would become depressions that would fill up with rain water. This results in a series of lakes and seas in the middle of the oceans. These are important to the ecosystem of Inversia because the oceans have become large deserts due to coastal mountains blocking rainfall. The lakes provide much needed water sources for life here.

There are still Andes Mountains and a trench along the west coast of South America but reversed. The Great Lakes have become the Great Isles. Hawaii and the Azores are Seas and the Mariana Trench is now the world's highest mountain range. The web page is full of well thought out descriptions of the life, climate and ecology of Inversia. Enjoying exploring!

Wednesday, November 5, 2014

Election Maps Elsewhere

Those of us in the USA will be seeing many election maps over the next few days. In the interest of not being every other site, here are some maps of other important elections that have happened this year in large countries that we (myself included) pay much less attention to than we should.


In last month's election, incumbent president Dilma Rousseff won both rounds. The map above shows her vote in the runoff election in red and challenger Aecio Neves in blue. On the right is a cartogram - areas proportional to population. Usually cartograms do a better job of showing results but in this case it's actually more difficult to see that she won than the conventional map. I suspect it's due to the strength of support Rousseff saw in the areas she won.

This map uses a gray neutral color instead of the purple we often see in our red-blue maps. This makes for a clearer distinction of areas. Author Diogro Melo does a nice job listing his sources, even for the colors.  He also has a link to the code used to create the cartogram.


India had a major parliamentary election in the spring and the BJP with it's allies (the National Democratic Alliance) won a major victory over the Congress party and their allies. A huge number of parties in India would normally make for a colorful map, but in this case it is mostly BJP orange. Congress allies are shown in shades of blue. A cartogram would have shown much more blue with many of the small blue areas being large cities - more colorful, yet uglier as cartograms tend to be.


The world's fourth most populous country had its third presidential election. Twelve parties formed two coalitions with Joko Widodo's coalition winning.,_2014#mediaviewer/File:2014IndonesianPresidentialElectionMap.png
 The red/crimson (what?) color scheme used on Wikipedia is unconventional and barley works. Widodo's winning coalition is red, Subianto and Harvard University are crimson. The geographic pattern is basically Sumatra vs. elsewhere. This map would probably be more interesting with more parties, instead of just the two coalitions. Like, for example, the 2009 Election,_2009#mediaviewer/File:2009_ElectionsIndonesia.png


Less populous but also important is Afghanistan. Their election suffered from violence, accusations of fraud and a lack of good maps. Here is the best map I could find.

Votes for Ashraf Ghani, the declared winner are shown as green proportional circles. Votes for Abdullah Abdullah (the candidate so nice they named him twice) are in purple. The trouble is in making out a pattern underneath the noise of the heavy colors representing ethnicity. A simple dulling of the ethnic colors and/or brightening the circles would help see the relationship between these patterns. Even better would have been to choose colors for the circles that are clearly different from the ethnic colors.

Egypt also had a presidential election. I have not been able to find maps, probably because el-Sisi won 97% of the vote*. I suppose the map would look like this. 

* 97%? A bit above the credibility threshold?

Wednesday, October 29, 2014

Airline Timetable Maps

Airline Timetable Images is a remarkably comprehensive collection, compiled from the collections of Björn Larsson and David Zekria. I have wasted many hours looking through their collection at vintage airline maps for example, Air Zaire, 1978.
 The maps range in style from this highly schematic, barely legible 1970 Air Canada map,
to this geographically detailed schedule from Regie Air Afrique with artistic flourishes,
to this artistic take from Aeroposta Argentina from 1937 featuring a curved, oblique view showing airports(?)  with their hangars and radio towers, or are those trees? 
Click the image for a larger view.
Air Canada's maps were not always this schematic. Here's what it looked like in 1945.
My first airplane trip was in 1972 on Eastern Air Lines, from Philadelphia to Houston with a change in Atlanta. Looking at their map from that year confirms that Atlanta was clearly their hub.
My memories from that flight were the breakfast sausage (we didn't get that at home) and thinking "we must be over Alabama now so those must be the covered wagons" - I had a little confusion as a child about where and when covered wagons existed.

Here is one of the oldest maps from Eastern - 1933.
I wanted to show a current map for contrast but there are not many on the site to choose from. Here is a 2010 map from Emirates with the familiar spiraling lines coming out from the hub (Dubai). This map features an overabundance of detailed topography. The mercator-like projection may be helpful for showing the large number of northern European destinations but also uses way too much map space on Siberia and northern Canada. The map also shows how much more important Toledo (Ohio, not Spain) is than you ever thought possible.
Try this at home! You might find a timetable or map for some of your flights.

Wednesday, October 22, 2014

Crowdsourced Mapping Helps Fight Ebola

Ten years ago this month Google acquired a mapping company called Where 2 Technologies and began to create Google Maps. Despite the tremendous growth of Google Maps over the last 10 years, there are still areas that are poorly mapped. When Doctors Without Borders wanted maps of the areas in Guinea, Sierra Leone and Liberia that are most affected by Ebola, they turned to OpenStreetMap, a worldwide, crowdsourced mapping project. A recent article from Fast Company Labs details how the Humanitarian OpenStreetMap Team (HOT) has gotten volunteers to quickly map cities like Gueckedou in Guinea. This image compares the level of detail between the two mapping services.
OpenStreetMap is on the left, Google Maps on the right. The limitations of this blog page make this hard to see so I manipulated the images to compare them up and down.
Andrew Buck, A volunteer with HOT is quoted in the fastcolabs article as saying that Google's business model is selling advertising and “Starbucks isn't paying for Google to advertise over there so there's very little incentive for Google to improve its maps.”  

In fairness to Google, the OpenStreetMap for Gueckedou much less detailed than Google before the HOT team got mapping.
Since March the team has mapped over 8 million objects. The article has a nice animation showing the edits made in West Africa in the last six months. I was not able to it reproduce here but you can see it on their page.

OpenStreetMap has helped relief efforts by identifying unknown villages, sorting out similar village names, coordinating logistics and allowing relief workers to predict the paths used by infected persons and therefore areas that are more likely to be in need of aid.

Wednesday, October 15, 2014

Flying Map Cancels Soccer Game

A drone carrying a flag that features a map of "Greater Albania" flew over the pitch in Belgrade during the Serbia vs. Albania Euro 2016 qualifying match. One of the Serbian players pulled the flag down, resulting in brawls among the players and fans and the game was subsequently canceled.
My quick assumption was that this was a map showing Albania united with Kosovo, an independent republic still claimed by Serbia. However, the shape is completely different. After some digging I came across a map of Greater Albania that explains the shape.,+Albania,+Macedonia
Not only do the Greater Albania supporters want Kosovo but also large chunks of Serbia, Macedonia, Montenegro and Greece. Good luck with that!

More details on the soccer (football) story here.

Wednesday, October 8, 2014

Melbourne After Dark

The International Cartographic Association (ICA)'s Commission on Map Design has been posting a map every day this year to highlight examples of great map design. Here is just one of the many maps worth highlighting - there may be more to come as time allows. This is a 1979 map by Cartographics International showing what establishments were open at night in Melbourne, Australia. These color choices were designed to be read at night under the street lights, while also creating a night-time look.
The detail provided on the ICA page shows a happening neighborhood full of places to eat, "massage parlour/health studios" (pink lanterns) and coffee shops. The full map has a couple of areas blown up and pulled to the side, the lower left one appears to be a red light district. The bottom of the map shows some nightlife images that add to the exciting and vaguely sinister feel of the map.
For a good writeup and the original images take a look at the ICA's page from June 25th.