Urban Picture

Embaba, Cairo (Egypt)

[Photo by: Karim Shafei] 

ps. I saw this via Telmo Ribeiro, who was my inspiring geography teacher at high school, by the way.

Drawing a Map from Pub Locations

There are roughly 29,000 pubs in Britain and Ireland on OpenStreetMap. Plot their locations and you will have a map to happiness  that is similar to the population density.

Ramiro Gómez has written a short tutorial on how to extract these data from OpenStreetMap and make a map using python/Matplotlib (via Max Roser)

Related link: map of the Breweries of Europe

[image credit: Ramiro Gomez]

The Art of Communicating Science

Here is an important lesson to remember when communicating your research to a wide audience.

Dawkins has good point but I'm not sure this 'argument' is easily accepted by journal editors and reviewers .

Assorted Links

1. What The World's Cities Look Like Without People
   
   
2. Urban street networks, a comparative analysis of ten European cities
   
   
3. By 2030, the World's Biggest Cities Will Be in Asia and Africa
   
   
4. 150 years of history in great pictures of the Tube (London Underground)
   
   
5. Sabina Alkire and her team at the the Oxford Poverty and Human Development Initiative have just published a new book on Multidimensional Poverty Measurement and Analysis. The entire book is freely available to download
   
   
6. Impressive photos of the Central Park now and then via MR
   
   
7. Every active satellite orbiting Earth
   
   
8. A national map of cycling to work in the UK, by Alasdair Rae

Higher resolution, here

[image credit: Alasdair Rae]

How to Make Beautiful Charts With R and ggplot2

Some times, this is how I feel using R .

If that's the case for you as well, you might like this amazing post by Max Woolf showing how simple it is to make beautiful charts with R using ggplot2. You should check it out.

Quote of the Day

[via Valdis Krebs ]

The world's largest megacity is larger than you think

Quick fact about China's Pearl River Delta. It is considered the world's largest megacity today and it already has more people than Australia (23 mi), Canada (35 mi) or Argentina (41 mi).

If you want some academic publications on China's Pearl River Delta region, you can fin some interesting studies conducted by researchers from the Seto Lab on Urbanization and Global Change (Yale). I got this Time-Lapse from their website and it gives a glimpse of the fast  urbanization process of this region over the past decades. 

[image credit: IK's World Trip/Flickr]

ReDesigning the Global Map of Refugees

A couple of weeks ago, I wrote a post about the new UN annual report on forced migration and refugees and how the guys at the NYT (S.Peçanha and T.Wallace) did a great job in visualizing the data from the report. As a short update to that post, I would like to point out how the same dataset can be visualized in quite different ways. I highlight here only two other data visualization projects based on the same data set and which could be inspiring to other people working with flows data.

The first project is the Global Flows of Refugees, where Nikola Sander and Ramon Bauer have used interactive circular plots to explore refugee flows between countries, regions, etc. The plot is quite effective in showing how flow sizes and origin-destinations change from 2013 to 2014.

The second dataviz comes form the Refugee Project, which brings some geographical context and more historical information on forced migration year by year since 1975. It was designed by Ekene Ijeoma and the team at Hyperakt. 

Assorted Links

1. Beijing Quadrupled in Size in a Decade, NASA Finds
   
   
2. Delhi metro could soon run completely on solar power
   
   
3. 25+ Of The Most Majestic Libraries In The World
   
   
4. What the coast cities of US and China might look like if predictions of rise sea levels are confirmed
   
   
5. Great pictures of "International Borders Around The World"
   
   
6. Good Dani Rodrik powerpoints on labor migration (pdf) via MR
   
   
7. Self-driving Toilets might be the next 'invention' of Google
   
   
8. Google has built a virtual simulation of California to test its self-driving cars (via Francesco M. Cerroni)

World Population Distributed by Latitude and Longitude

David Taylor and the team at CityMetric have recently posted a simple and effective chart to show that the population of Canada is not as north as we might think. This reminded me of a another map, that we posted almost five years ago ....

[image credit: David Taylor]

Bored of those traditional population maps, I've posted this inventive chart/map of the world population distributed by Latitude and Longitude. It was created in 2008 by Bill Rankin, who you might know from his website Radicalcartography.

[image credit: Bill Rankin]