Archives for August 2016

Louisiana flooding as seen in Sentinel imagery

As we mentioned in Monday's post, southern Louisiana is experiencing major flooding. One of the worst affected areas is to the east of Baton Rouge, where the Amite River has burst its banks, flooding … [Read more...]

Sentinel imagery coverage

Yesterday we created a KML file that allows you to preview the latest sentinel imagery using a KML file of all the sentinel tiles. We noticed that some tiles do not have any images available, so we … [Read more...]

How to quickly preview the latest Sentinel imagery

[ Update: There were a few bugs in the first version of the KML most notably it reported no imagery for tiles starting with '0'. If you intend to use it, please re-download. We have also slightly … [Read more...]

Drawing contours with altitude data

Thank you to GEB reader 'DJ' for suggesting this idea in the comments of our post on simulating lakes. It turns out that the algorithm for drawing contours given a regular array of altitude data is … [Read more...]

Rio 3D imagery and Google Earth’s elevation data

We mentioned in our post on simulating lakes that Google Earth's elevation data is often very inaccurate in mountainous areas. When looking around the 3D imagery of Rio de Janeiro, where the Olympics … [Read more...]

Komodo Dragons in Street View

Google has just released Street View imagery of Komodo Island, Indonesia, as well as significantly increasing the coverage for the rest of Indonesia. There are also a number of new underwater Street … [Read more...]

Simulating lakes with Google Earth

In yesterday's post we had a KML which includes a polygon showing the approximate extent of a historical lake in Google Earth. We thought it would be worth discussing how to do this and some of the … [Read more...]

Landslide Dams in Google Earth

Landslide dams are formed when a landslide blocks the course of a river, creating a dam. This can lead to catastrophic consequences, as the dam tends to consist of loose easily eroded material and … [Read more...]

Verne: The Himalayas

Google has just released a game for Android devices called "Verne: The Himalayas" that makes use of Google Maps' 3D imagery. The post about it on Google's Lat Long blog seems to imply that they have … [Read more...]

Can we see Antarctic seals in Google Earth?

We recently came across this interesting article on the DigitalGlobe blog. It is about using imagery crowd-sourcing site Tomnod to count seals in DigitalGlobe satellite imagery of Antarctica. The very … [Read more...]