Friday, March 06, 2015

The US Cookie Map


The LA Time's What Cookie Are You Getting map can tell you where your local girl scouts cookies were made. Apparently the girl scouts have two different sources for the cookies they sell and which ones you get will depend on where you live.

The What Cookie Are You Getting map colors the United States based on whether the local girl scouts buy their cookies from ABC Bakers or Little Brownie Bakers. If you enter your address or zip-code into the map you can see which baker supplies your local girl scouts. You can also view the range of cookies available beneath the map, with details of the calories and sugar & fat content of each type of cookie.

One Dot, One Vote


One Dot For Every Voter is a map comparison of the 2011 and 2015 Chicago Mayoral Election Results. The map visualizes every voter in Chicago with a dot, colored by the candidate they voted for.

The slide control on the map allows you to compare this year's results with the 2011 mayoral election results. Switching between the two years on the map not only clearly shows the drop in turnout in this year's election but also shows where Chicago Mayor Rahm Emanuel lost voters this time around.

This blog post accompanying the map looks in a little more detail at the areas where Emanuel lost support in the 2015 election.

Volcanoes in 3D


Mountains of Fire is an Esri Story Map which takes you on a tour of some of the world's biggest volcanoes. The tour uses Esri's 3D Scene Viewer, which means you can explore each of the featured volcanoes from all angles.

The tour begins with a brief introduction into how volcanoes are formed and what causes them to erupt. You are then taken on a tour of some of the world's most active volcanoes. You can investigate each of the featured volcanoes in 3d on the map, zooming in and out and rotating the map as you wish.

The map side-panel features YouTube videos and /or images of each volcano and gives a brief overview of the featured volcano's historical activity.

Thursday, March 05, 2015

Mapping Australia's Imported Food


I know very little about international trade, so I'm not sure why the Where Does Australia Import its Food? map upsets me so much. This map is a fascinating insight into where Australia imports food from around the world.

To be fair a lot of Australia's food is imported from nearby New Zealand. For example most of Australian livestock imports come from New Zealand. However the next four top exporters of livestock to Australia are from distant European countries.

This Esri map of Australian food import shows where different types of food (bought in Australia) originate based on data from the Department of Foreign Affairs and Trade. The map provides a number of map views based on different food groups. The only food group which is sourced (relatively) locally appears to be processed seafood. The rest of Australia's food appears to be sourced from as far away as possible.

The map doesn't show how much Australia relies on imported food. Therefore it is impossible to tell from this map how much these food imports contribute to Australia's total food consumption. I also suspect that the situation isn't very different in most first world countries.

But never mind, we can all pretend we are saving the planet by buying some seakale beets from our local farmer's market this weekend.

The Changing Contours of Chicago Crime


The Mapbox Blog has published another neat map demonstrating the capabilities of Turf.js. Chicago Crime Data with Turf is an animated heat-map of Chicago crime data since 2001.

The map provides a moving timeline of crime in Chicago over more than a decade. The graph beneath the map shows how Chicago crime during this period has declined. One neat feature of the map is that you can select a date-range on the timeline to loop through the selected time period in the map animation.

Mapping the Weather with WebGL


Over the last month there has been some great examples of mapped visualizations of weather data. Weather-grid.GL is another great map visualization library, which works particularly well in displaying atmospheric data on an interactive map.

The Weather-grid.GL website explains how you can use the library to convert gridded data into LeafletJS WebGL overlays. The site also includes a link to the library's GitHub page and to a number of example maps created with the library.

This Intermountain West NDFD Grids with Leaflet WebGL map is probably the best example of the sort of impressive interactive weather map which can be created using the library. The map allows you to view temperature, RH, wind speed and precipitation layers on the map. With each layer you can cycle forward or back through the weather data in hourly increments and watch as the data updates almost instantaneously on the map.

The Trashiest Map of the Week


Artist Jennifer Maravillas has been wandering around Brooklyn collecting trash from every neighborhood block. The result of all this litter-picking is a map of the borough made from all of the collected rubbish, called 71 Square Miles.

The finished 10 x 10 foot trash map of Brooklyn is on display at BRIC Arts until September 6th. However, if you can't make it to BRIC Arts, you can still explore the artwork on this Mapbox map. You can even search the map by address, so if you live in Brooklyn you can zoom in on the trash that was found nearest your home.

The Ice Cold Gold Map


Tonight Animal Planet's Ice Cold Gold begin its third season. You can explore some of the stunning locations featured in the new season in this Esri Story Map.

Ice Cold Gold is a reality television program about a mining team trying to exploit the natural resources of Greenland. As you scroll through the Ice Cold Gold - Digging Deeper Story Map you can view video clips from the series, including some great time-lapse footage of Greenland's scenery and landscapes.

Currently you can select two journey maps, a 'Prelude' and 'Episode One' from a drop-down menu. In truth this Esri Story Map hardly features any maps at all. Animal Planet are using Esri's Story Map library as more of a video gallery than a mapping platform. It is a shame that there aren't at least more detailed satellite maps of the locations featured in the program. However Ice Cold Gold - Digging Deeper does demonstrate how Esri's Story Map platform can also be used without maps.

Wednesday, March 04, 2015

The Weather's Getting Animated


The weather has been looking better lately. This is largely due to some great work being done by CartoDB and Mapbox.

Last week CartoDB Heat Maps was used to create this map of historical Hurricane and Tropical Cyclone Track Density. The map animates the track density of hurricanes and tropical cyclones from 2000-2013, using data from the National Climatic Data Center. Over at Mapbox they've been using Turf.js to create Animated Heatmaps and Grids. A map which not only shows an animated heat-map of historical hail data but also allows you to view the data as animated hexbins, triangles, squares and points.

Turf can also be used with Leaflet, as TannerGeo has shown with this Weather in Turf map. As you are probably aware February was an historically cold month in the USA. Weather in Turf uses data from NOAA to visualize weather station data from across the US. The map uses a Voronoi diagram overlay to show a heat-map of temperature, mapped to the closest weather station.


The Leaflet TimeDimension plug-in can also be used to animate weather data on a Leaflet map. The Leaflet TimeDimension Examples page has a number of example maps with animated weather layers.

One neat example is this Climate Projection map which uses data from the Postdam Institute for Climate Impact Research to show projected temperature changes around the world up to 2099. This animated heat-map shows the projected effects of global warming over the next century.

Mapping All the Singles


Last year Jonathan Soma created a great mapped visualization of single men and women in the USA. The U.S. Singles Map shows the number of single men and women in metropolitan statistical areas (major cities and their suburbs), allowing you to adjust the results displayed on the map by age.

The map is great if you don't mind traveling halfway across the country in search of a partner but not much use if you want to find a local date. Luckily Jonathan has got a bit more local with his latest two maps, showing where the singles live in New York City and San Francisco.

The NYC Singles Map shows singles men and women organized by zip-code and gender. The map reveals that in Manhattan there are far more young single women than men. So if you are female and aged between 20 and 34 and live in Manhattan your best bet is to commute out of the borough if you want to date someone of your own age.

However the situation quickly changes if you change the date range to 35-44. Do that and Lower Manhattan turns into a sea of single men. All the single women in this age range seem to live in Upper Manhattan, in the expensive apartments around Central Park.


If you are a young single woman in San Francisco then your luck is in. The Bay Area Singles Map shows that one result of the 'Google Shuttle Effect' is that the city is full of young single men. The situation in San Francisco only really changes when you move the age ranges to somewhere above the age of 50. Once you get to these age ranges most of the Bay Area shows a lot more single women, although much of San Francisco remains dominated by single men in this age range.