Saturday, February 25, 2017

Deadliest Airplane Disasters

I created a web app on the deadliest airplane disasters (fatalities >= 200) in recorded history (upto 25 Feb 2017).  I created the dataset based on the information contained in this wikipedia page.

Here is the web app in all it's glory:

If you want to explore the web app on a separate web page, please click here.

I have built in various charting and querying options to help you explore the data.  Additionally, you can search the map by the name of the airline.

I have also configured this web app to work on various IO/S and Android devices so feel free to check it out on a mobile device of your choice.

I'd love to hear what you think of my web app so please let me know by leaving a comment below.

Monday, February 20, 2017

Historic Earthquakes and Hurricanes in the US

Here's a web app I designed showcasing historic earthquakes and hurricanes in the US from 2000 to 2008:

Click here!

Here is what an image of the app looks like with a Dark Gray Canvas base map:

I used a map created by Dr. Pinde Fu of Esri to design this app.  It has been designed to work on many IO/S and Android devices so when you are ready, take it for a test drive!

Sunday, February 19, 2017

ICC Cricket World Cup (1975 - 2015): a visual history

Being the cricket obsessed fan that I am (my obsession has gotten worse since I moved away from India and Australia to the US where I am starved of watching live cricket - distance does make the heart grow fonder!), I worked on a fun project this weekend.  I first started with a story map tour of all the cities that have hosted the finals of the various ICC Cricket World Cup tournaments from inception (1975) until the last edition (2015).

You can access the story map tour web app here:

Next, I created a map of all the countries that have ever participated in the World Cup.  Here is what the map looks like:

The size of the flag indicates the number of times that a country has been the world champion (min value = 0; max value = 5).

Then I focused on the two World Cups (held in 1987 and 2011) that were hosted by Asian countries.  For each of these editions, I created a map that marked the various venues where the cricket matches were played.  Here is what the map looks like:

The size of the bubbles represents the number of matches played at the venue.  To easily identify the venues that were added / dropped in 2011 and the difference in the number of matches played at each venue, I created a Story Map Swipe web app where if you scroll right, you can only see the 1987 venues where as if you scroll left, you can see the 2011 venues appear.  I think this is a really cool web app (even if I say so myself!).

You can view this Story Map Swipe web app in all it's glory here:

Finally, to put all this together in a story that (hopefully!) flows nicely, I created the following Story Map Journal app:

You can directly view the Story Map Journal web app in all its glory here:

I hope you enjoyed my visual history of the ICC Cricket World Cup (1975 - 2011).  I'd love to hear your thoughts in the comments section.

Monday, February 13, 2017

A simple app to collect Volunteered Geographic Information (VGI)

Per Wikipedia, Volunteered Geographic Information (VGI) is the harnessing of tools to create, assemble, and disseminate geographic data provided voluntarily by individuals.  VGI is a special case of the larger Web phenomenon known as user-generated content.  While there is concern over the authority of the data, research has shown that VGI may provide benefits to the end user above and beyond that of traditional data sources, in part due to its ability to collect and present data not collected or curated by traditional/ professional sources.  Additionally, VGI has been shown to provide positive emotional value to users, not only in functionality, but also in satisfaction, social connection, and ethics.

I created a simple (and fun!) app to collect VGI on most wanted Police suspects.  I used four famous James Bond villains as my suspects (Dr. No, Goldfinger, Jaws and Oddjob) and created a form for any user to record any sightings of these murderous hoodlums.

Here is where I spotted these baddies:

Can you help James Bond and the Police by submitting your responses also?

Here's the web app in all it's glory:

Wednesday, February 8, 2017

Recent Earthquakes

I created a web app the mapped recent earthquakes in the world based on data from the US Geological Survey (  To understand the potential impact of these earthquakes, I added a layer that showed the population of the world's major cities (Esri's World's Cities layer).  Some countries with large populations (China, India, Indonesia) lie in areas that are prone to earthquakes.  Some less populated countries (eg New Zealand) are also in earthquake prone areas.  The other observation is that there is significant and regular seismic activity in the Indian and Pacific Oceans especially when compared to the Atlantic Ocean.  Here is the web map that I created:

I also created an interactive web app based on this data.  To view the web app in all its glory, go here:

What conclusions can you draw from this data?

Friday, February 3, 2017

US City-wise Population Growth and Unemployment

I conducted some basic analysis of US population growth in the 50 most populated US cities since 2010 and compared that with the unemployment rate in these cities.  Not surprisingly, there were some clear correlations: cities with high unemployment rates saw low population growth and vice versa.  Some highlights from the analysis:

  • The four cities with the most population growth since 2010 are Austin, Denver, New Orleans and Charlotte
  • The two cities with negative population growth since 2010 are Detroit and Cleveland.
Here is the web map that I created:

I also created an interactive web app based on this data.  To view the web app in all its glory, go here:

What conclusions can you draw from this data?

Monday, January 30, 2017

A tour of Melbourne's sporting arens

I have recently started using Esri's Web GIS called ArcGIS Online.  As my first attempt at putting together a "story map", I decided to showcase some of Melbourne's main sporting arenas.  For those of you that have not been there, Melbourne is not only the world's most beautiful city (IMHO) but is also the world's undisputed sporting capital (IMHO again).

So picking just a few of the many (many!) sporting arenas in Melbourne to showcase in my story map was relatively easy.  I didn't need to do any research - they were all top of mind for me.

Here's a link to my story map tour of Melbourne's sporting arenas.  I hope you enjoy the tour!