Map: US Gender Pay Gap

We all know that there is gender pay gap that women get less salary than men on average, and we have shared an interactive Google Maps about this phenomenon in New Jersey before. Here we have found another U.S. for showing a wider picture of this issue.

heat map us gender pay gap

According to the above chart and map, we can see that women make 77 cents for every $1 earned by men in average, and women in Washington, D.C., Marland, Nevada, and Vermont can even earn more than 84 cents for every $1 the men make. However, the gender pay gap still exists, that happens in every county, and even female employees working in the White House make less dollar than men.

So you think the gender pay gap is an issue that has to be solved? Share your views with us.

Map Reviews: 3.5/5 Stars
This heat map is not user friendly to read as the color setting is a bit complicated. We would suggest using continuous color rather than the current discrete range color since the former can better present the differences of data values in various counties.

US Map of the Least Popular Musicians By State

This morning, we have just posted a U.S. map about the most popular musicians by state on our Twitter, and we find another map about the least popular one today.

us map the least popular musician by state


Don’t be surprised by seeing “Buckcherry” on every state as the result is based on the experiment by Daniel Hill that the detailed story can be seen HERE.

Usable Restroom Along MTA NYC Subway

Few weeks ago, we have share an NYC Subway map about best coffee by stop, and today we would like to share another one about usable restroom along the subway.

nyc-subway-map-all-subway-bathrooms-youtube-affixion96-untapped-cities-02

This MTA New York City Subway map about usable restroom is created along with a YouTube video created by Eron Watt to show those 48 subway restrooms he visited from 2009-2014. Out of NYC’s 468 subway stations, only 129 of them claim to have restrooms, and many of them are locked, though MTA spokesman claimed that the only times restrooms are locked is from 1 a.m. to 6 a.m. for cleaning purposes and prevention of crime, except when they are under construction.

Here is the video produced by Eron Watt:

Interactive Heat Map: Global Slavery Index 2013

According to the Walk Free Foundation’s Global Dlacery Index 2013, there are nearly 30 million slaves in the world, and almost 60,000 of them are living in the U.S. Here is an interactive world map about the index.

According to the Walk Free, slavery defines as one of the following: human trafficking, forced labor, debt bondage, forced or servile marriage, and the sale or exploitation of children including in armed conflict.

The index ranks 162 countries based on a combined measure of three factors: estimated prevalence of modern slavery by population, a measure of child marriage, and a measure of human trafficking in and out of a country.

The index is mapped into two maps: an interactive heat map & an interactive bubble chart. In the heat map, country with higher slavery prevalence is highlighted with darker red while country with lower slavery prevalence is highlighted with yellow. Map users could see details of each country by mouse clicking the region, or select specific category in the category legends.

In the bubble chart, countries are being plotted on the chart according to their prevalence rank vs human development index/financial service index/corruption index. However, there is no popup box of each bubble for detailed information, and no map legend to indicate various bubble sizes that a bit confuse the map users.

interactive heat map the global slavery index 2013

According to the index, 10 countries with the highest prevalence of slavery are Mauritania, Haiti, Pakistan, India, Nepal, Moldova, Benin, Cote d’Ivoire, Gambia, Gabon. Among all the above mentioned countries, India has the most slaves in the world, with an approximated 14 million. 

However, even countries like Iceland, Ireland, and the United Kingdom rank 160 in the index, it does not mean these countries are slavery free, for example, it is estimated there are between 4200 to 4600 “slaves” in the UK.

Map Review: 4.5/5 Stars
We love this map as the map design is simple but informative with clear instruction and indications for users to filter related information in seconds.
There are just minor suggestions to the bubble chart:

  • add a map legend to indicate the bubble sizes
  • insert infobox for each bubble for detailed information

Alternatively, showing data of each country with bubble can be presented on the world map rather than on the chart. Bubble chart map can be easily created in mapping software that you may take following video for reference:

Interactive World Map About Deforestation

According to the World Resources Institute (WRI), it’s estimated 500 soccer fields of forests are lost every minute. WRI cooperated with about 40 organizations, and has created the following Global Forest Watch (GFW), an online forest monitoring system, to see where are we losing the forests in real-time.

interactive world map global forest watch

You can see related data by selecting specific items in the category legends, for example see the forest changes, forest cover (heat maps), forest use (e.g. logging/mining/oil palm). Using this map, we could track the effects of using forest illegally, for example the illegal gold mining in Peru’s Amazon.

Related article: Global Forest Change

Interactive Bubble Chart: Where France Lost their Children in Holocaust

Rating:

During the Second World War, there were around 76,000 Jews sent to Nazi extermination camps, and there were more than 11,400 children among them. Check out this French map to see the where did France lost the children in Holocaust.

This interactive French map is created by French historian Jean-Luc Pinol, based on data collected by Holocaust documenter and former Nazi hunter Serge Klarsfeld, to show locations that every child departed from France between July 1942 and August 1944 that you can see series of red bubbles, depends on the number of children, scattered across the country.

interactive bubble map where france lost their children in holocaust

You can zoom in the map or enter address to search for the location, and then mouse click the infobox to see the children’s names and ages.

We understand it is a sensitive issue to mention about the fate of France’s Jews in World War II, this map is an important tool for better understand the history, which we have to face.

Map Reviews: 3/5 Stars
You cannot see how “interactive” this map is until you zoom in to each point and mouse click for the details. In the popup box, you have to mouse click the inserted URL in order to read detailed information in the information column that on the right side of the map. This process is a bit unnecessary as popup infobox with detailed information can be directly shown once the map users mouse click the bubble. Here is a video for reference:

Please note the map supports French currently, and let see if versions in other languages would be released in the future as this map is an informative tool for related research and educational use.

Heat Map Shows How Polar Vortex Froze over U.S. this Winter

This winter, U.S. is frozen by the polar vortex that seriously affects the daily life of Americans (e.g. flight cancellations and delays, school closed, massive traffic delays). Here is a heat map shows how the U.S. being frozen due to the dipping of Arctic winds.

heat map how polar vortex froze us

From the above image released by NASA, we can see arctic winds dipped south that causes cold condition across the Midwest, East Coast, and South, and some places temperatures were 40 degrees Fahrenheit colder than average.

Related Articles:
Interactive U.S. Map: Snowfall Report
Heat Map: Serious Drought in California

 

Interactive Global Map: Human Genetic History

Maybe you are the one who always dozing in history lecture, you may find “history” can be presented in a more vivid way by using interactive maps / graphics. Here we have found an interactive world map about human genetic history, and let’s start our history lecture now!

interactive google map human genetic history

The genetic map is created by researchers from Oxford University and UCL that lists detailed genetic history of 95 different populations across the world that we can see genetic impacts of European colonialism, the Arab slave trade, how Silk Road mixing population, and more. Simon Myers of Oxford’s Department of Statistics stated that DNA tells stories of humanity’s past, and most of the their genetic observations match with historical events, for example Hazara people of Pakistan are partially descended from Mongol warriors, which matches with the finding that Mongol DNA  entering the population during the Mongol Empire.

There are category legends for you to find information by historical event or population, or you can mouse click the icons on the map to see detailed information in the popup information column.

There is a minor design that we like, the scale line acts like a time line that it will indicate the time frame of the selected historical event.
time line

Interactive Google Map: Locations to Buy Great British Grub Across the World

If you are so addicted to British food and drink then you should not miss the following interactive world map, which pinpoints grocers, butcher, and bakers that sell food from clotted cream to pork pies.

It is obvious that the map does not pin all the shops that sell British Grub, so you are invited to add locations on the map by providing information to the map creator. Actually there is an alternative way for the map creator to better crowdsourcing data by creating crowdsourced map. Crowdsourced map enable map users to directly add locations all the map, and the map creator can control the crowdsourced data in an admin panel. Details about crowdsourcing can be seen in the following video:

Furthermore, since there are multiple locations in the same region, and more locations will be added, the map is becoming messy with numerous icons on the map that clustering can tackle the issue. Clustering groups locations on the map based on some factors, such as proximity or by the map data that makes the map leaner and cleaner. Here is a sample map for reference: