Posts for Tag: population

Assembling the World Country-By-Country

Posted In: Maps
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Watch the world assemble country-by-country based on a specific statistic



This map lets you watch as the world is built-up one country at a time. This can be done along the following statistical dimensions:

  • Country name
  • Population – from United Nations (2017)
  • GDP – from United Nations (2017)
  • GDP per capita
  • GDP per area
  • Land Area – from CIA factbook (2016)
  • Population density
  • Life expectancy – from World Health Organization (2015)
  • or a random order

These statistics can be sorted from small to large or vice versa to get a view of the globe and its constituent countries in a unique and interesting way. It’s a bit hypnotic to watch as the countries appear and add to the world one by one.

You can use this map to display all the countries that have higher life expectancy than the United States:
select “Life expectancy”, sort from “high to low” and use the scroll bar to move to the United States and you’ll get a picture like this:
Countries with higher life expectancy than US

or this map to display all the countries that have higher population density than the United States:
select “Population density, sort from “high to low” and use the scroll bar to move to the United States and you’ll get a picture like this:
Countries with higher population density than US

I hope you enjoy exploring the countries of the world through this data viz tool. And if you have ideas for other statistics to add, I will try to do so.

Data and tools: Data was downloaded primarily from Wikipedia: Life expectancy from World Health Organization (2015) | GDP from United Nations (2017) | Population from United Nations (2017) | Land Area from CIA factbook (2016)
The map was created with the help of the open source leaflet javascript mapping library

World Population Distribution by Latitude and Longitude

Posted In: Maps
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How is population distributed by latitude and longitude

This interactive map shows how population is distributed by latitude or longitude. It animates the creation of a bar graph by shifting population from its location on the map to aggregate population levels by latitude or longitude increments. Each “block” of the bar graph represents 1 million people. Population is highest in the northern hemisphere at 25-26 degrees North latitude and 77-78 degrees East Longitude.

Instructions:

It should be relatively explanatory. Press the “Aggregate Population by Latitude” button to make a plot of population by line of latitude (i.e. rows of the map).
Press the “Aggregate Population by Longitude” button to make a plot of population by line of longitude (i.e. columns of the map). To see the population distributed across the map, press the “Show Population Grid” button.

This map was inspired by some mapping work done by neilrkaye on twitter and reddit.

Data Sources and Tools:
This map projection is an equirectangular projection. Data on population density comes from NASA’s Socioeconomic Data and Applications Center (SEDAC) site and is displayed at the 1 degree resolution. This interactive visualization is made using the awesome leaflet.js javascript library.

population by longitude and latitude