We have been having a bit of fun with Trendsmap over the past few weeks building visualisations out of geo-coded tweet data.
What is a geo-coded tweet? In basic terms, it is a tweet where the person has made available their precise location as part of the tweet. This is typically done using the GPS in many of today’s smart phones running twitter clients.
The images below show a heatmap representation of the density of geo-tweets across Melbourne, Australia.
Click on each image to see a larger resolution version. (right click and ‘save image as..’ to download a copy).
More images to come, but next time we will not tell you which city is represented. You will have to guess!
Here you can see the distinctive outline of Port Phillip Bay as the ‘void’ in the middle, the city of Geelong to the bottom left. The gridded road network is also just visible here, and more clearly the snake-like lines representing the metro train network.
We have started to roll out support on Trendsmap for more languages. Some of you may have seen improvements in languages including Spanish, Portuguese, French, German and Dutch. For example, South America now has a much better coverage of local language trends, as well as much of Western Europe.
As part of the work to make this happen we created a global map of what languages are typically used on Twitter from these locations. Whilst it is still a work in progress, it looked so nice, we thought we would share it with you all. This was created from 3 days of sampled tweets from across the globe. Click on the image below to see the a large version of the map.
Of interest here is the red streak that spreads South-South-East from the 0,0 lat/lon point just off the West coast of Africa. It’s not clear why this is the case. Perhaps it’s due to problems some devices/clients have with their GPS units, we’ve found a new island, or even a parallel universe. Hopefully it’s not another BP oil leak…
Stay tuned for more updates.