Monday, February 27, 2017

Harriet Tubman - An American Hero


Harriet Tubman is an American hero. She escaped from slavery in 1849. She then went on to use the Underground Railroad to personally help around seventy other people escape from slavery. During the American Civil War she also worked as a scout, spy and nurse for the United States Army.

Ron Stodghill in Harriet Tubman's Path to Freedom examines the extraordinary life of Harriet Tubman. In this New York Times article Stodghill travels through Maryland's Eastern Shore. He uses the journey to visit some of the locations important in Harriet Tubman's life and to tell the story of how she managed to escape from slavery and go on to free other slaves. He also visits some of the other locations in the area that played an important role in the Underground Railroad.

Harriet Tubman's Path to Freedom uses a simple story map format to show the locations in Stodghill's journey through the places important to Harriet Tubman's life. As you progress through the article the background map updates to show the locations visited by Stodghill and flashing markers help to highlight these locations on the map.

Also See:

Visualizing Emancipation - a map of slavery’s end during the American Civil War.
The Jamaican Slave Revolt Map - mapping Tacky's Rebellion and its brutal suppression by the British Army
The Atlantic Slave Trade in Two Minutes - an animated map of the Transatlantic Slave Trade Database
The Spread of U.S. Slavery - mapping the population of slaves at county level in the USA from 1790–1860.

Where's Everyone Moving?


In the UK when people move house they often give their new address to the post office. This enables the Royal Mail to redirect any mail posted to their old address to their new home. It also means that the post office has a lot of data about where people move from and where they move to in the UK.

The Royal Mail has used data from over a million of these redirection applications to create the Redirection Moving Map. The Redirection Moving Map allows you to enter any UK postcode and view a map showing where people have moved to in the UK from that address. It also allows you to see where people who have moved to that address have moved from.

On top of the map you can also view a few overall statistics about the total number of moves in and out of the postcode area. This includes the average distance moved to and from the area, the shortest distance moved, the greatest distance moved and the total number of house moves.

Friday, February 24, 2017

Sounds of the City - Mixing Desk


You can become your own urban DJ and remix the sounds of the world's cities on the Soundcities Herd Above the Noise map. This map lets you play and remix sound recordings captured in thousands of different urban landscapes around the globe.

Soundcities – Herd Above The Noise uses the Sound Cities extensive database of geo-tagged sound recordings to take you on an animated audio tour of the cities of the world. What's more using the map you can remix the thousands of found sounds and field recordings from around the world to create your own global city soundscape.

Herd Above the Noise can be controlled by selecting sounds from the markers on the map or by selecting from the two overlaid word clouds (locations and categories of sound). Alternatively you can just sit back and listen to the map in 'auto' mode. If you don't interact with the map then Herd Above the Noise will automatically take you on a journey around the world mixing together random sound recordings from random cities as you travel across the globe.


If you want to you can also become a natural soundscape DJ by remixing the natural sounds recorded around the world by the Global Biodiversity Information Facility.

GBIF Soundscape uses sound recordings from the Global Biodiversity Information Facility website to reconstruct the natural soundscapes of different regions around the world. Using the GBIF Soundscape map you can create your own mix of bird and frog sound recordings.

Select a region from the map and you can listen to a mix of all the bird and frog sounds which have been added to the GBIF data records at that location. At each location you can listen to all the recordings playing at once or create your own mix from the available recordings. You can also click on the 'random' button to listen to a random mix from a location's sound recordings.

Thursday, February 23, 2017

How Immigrants Boost the Economy


The New American Economy has mapped the contributions of immigrants in all 435 Congressional districts, the 55 largest U.S. metro areas and all 50 states. The map provides information on the tax contributions made by immigrant workers and data on their spending power and contributions to entrepreneurship and the general workforce.

If you select a location on the Map the Impact interactive map you can view details on the number of immigrant residents in the area and the amount of taxes paid by immigrants and their combined spending power.

For each area selected on the map you can also click-through to view more detailed information on the benefits that immigration provides at that location. This includes detailed demographic data about immigrant residents, their contributions to the different employment sectors and the amount of taxes paid by immigrants.

The Broken Bridges of Madison County


The 2015 National Bridge Inventory shows that more than 130,000 bridges in the USA are structurally deficient or functionally obsolete. The Washington Post has released an interactive map, How many structurally deficient bridges are in your county?, which shows the state of bridges in every country in the country. The map also allows you to view the inspection results for every classified bridge in your county.

The map at the top of article provides a choropleth view showing the number of structurally deficient bridges in each county. If you select a county on the map an interactive map of the county will load below the choropleth map. The county map shows all the classified bridges in the county and the number of bridges which have been classified as structurally deficient or functionally obsolete. You can also select any bridge's marker on the map to view its individual classification in the 2015 National Bridge Inventory.

Wednesday, February 22, 2017

Mapping the Internment of Japanese Americans


February 19th was the 75th anniversary of the executive order authorizing the internment of Japanese Americans. During the Second World War over 120,000 Japanese Americans were placed in concentration camps in the United States.

Esri has manually digitized the archival records of the War Relocation Authority, the civilian body that oversaw the relocation and incarceration of Japanese Americans, to create a Story Map which examines how America imprisoned its own citizens in the 1940's. Justice Deferred explores the contributions made by Japanese Americans to American life before World War II. It then maps out how the largest Japanese American communities in Los Angeles, San Francisco and Portland, Oregon and Seattle were forcibly removed from their homes and placed in one of ten concentration camps.

Justice Deferred is however more than just a series of maps showing how Japanese Americans were incarcerated during the Second World War. It also examines the personal stories of some of the effected Americans and the legacy of the internment program on Japanese Americans and for the USA itself.

Tuesday, February 21, 2017

Travel Time Location Search


TravelTime is a new location search engine which allows you to find places by travel time. It allows you to find locations by the amount of time it will take to walk, cycle, drive or get public transport to.

If you share your location with TravelTime you can view an isochrone map showing you how far you can travel in a set amount of time. For example you can select to view where you could walk within 15 minutes. But that's not all. TravelTime also allows you to search for venues and points of interest within your allocated travel time. So, for example, you can ask TravelTime to show you all the coffee shops within 15 minutes walk of your current location.

TravelTime isn't finished yet. It also allows you to add other locations to the map and search the travel times from the new location as well. This means that you can add a friend's location to the map and search for coffee shops within a 15 minutes walk of their location. You can then see the locations on the map where your 15 walk area overlaps with the 15 minute walk area of your friend. You can also see where all the coffee shops are that both you and your friend can reach within 15 minutes. Any of these could be a great place for you and your friend to arrange to meet.

The Aged in Spain Live Mainly on the Plain


The over 65's make up the majority of the population in 10 percent of census areas in Spain. Many of these neighborhoods with an aged population are in rural areas, such as Galicia and along the Mediterranean Coast. However it isn't true to say that the old in Spain live mainly on the plain. Many cities, like Burgos, Leon, Salamanca and Valladolid also have a high number of retirees living in the city center.

One of the key revelations in El Confidencial's interactive map What is the most common age of your neighbors? is that city centers in Spain tend to be populated by older residents and Millennials. Young families in Spain tend to live in the suburbs of cities where property prices are cheaper. Neighborhoods in city centers tend to be more popular with both Millennials and the elderly.

Each census tract on El Confiencial's map is colored according to the age group which is the most populous in that area. Using the interactive map you can select any census tract in Spain to see which age group is the most populous in that neighborhood.

Monday, February 20, 2017

Powered by Wind


This US Wind Turbine Industry map provides an overview of the location and capacity of wind farms in the USA. The map plots the location of individual wind turbines across the country, colored by manufacturer.

The links at the top of the map allow you to quickly zoom the map to the largest wind farms in the USA. When you zoom in on a wind farm the inset information window updates to show the capacity of the wind farm and the name of the owner. A list of all the wind turbine manufactures is shown to the right of the map. You can select individual wind turbine manufacturers from this list to add or remove them from the map.

The data for the map is from Scientific Data. It is from March 2014 so is almost three years old.


The United Kingdom generates a higher percentage of its electricity from offshore wind farms than any other country. You can view the current output of the UK's offshore wind farms on this Offshore Wind Electricity Map.

The map shows the locations of the UK's offshore wind farms. Each wind farm is represented on the map by a scaled animated wind turbine marker. The size of the marker represents the scale of the current output from each wind farm. If you select a marker on the map you can view the name of the wind farm and its current output in megawatts.

The map sidebar shows a dashboard reading of the share of the UK's electricity currently being generated by offshore wind. If you select a marker on the map the dashboard updates to show the operator of the selected wind farm, the site capacity, the number of turbines and the type of turbines.

The History of American Cities


The National Trust for Historic Preservation provides information on the building age and historic monuments of American cities. Their Atlas of ReUrbanism includes a series of interactive map which visualize a host of historical information about a number of American cities. The maps include information on the relative building age of city neighborhoods, the location of nationally registered historic places, historic & cultural monuments and historic districts.

So far interactive maps and fact sheets are available for ten cities. By the summer 50 cities will be available in the Atlas. Each city map provides a visualization of a city's National Trust 'Character Score'. The Character Score of city neighborhoods is based on the median age of buildings, the diversity of the age of buildings and the size of buildings in the neighborhood.

The Character Score layer provides an overview of where the city's older districts are located. The Cultural Resources tab on each city interactive map allows you to add other historic information to the city map. These layers include information on the location of listed buildings, historical monuments and nationally & locally registered districts.