Created by geography teacher Josh Williams, the site allows you to compare two maps side by side with different settings. The maps can be kept in sync, similar to the Street Earth tool we looked at yesterday. For more details about the site and how it got started, see Mickey’s post from 2011.
Although the site has recently been converted to use Google Maps rather than the Google Earth plugin, the plugin version is still available here and Josh tells us that it will continue to be available until December 2015, when Google is planning to end support for the plugin.
Josh also pointed us to the YouTube video below that demonstrates using his site to look at the damage caused by the tornado that struck Moore, Oklahoma. You can do the same for the tornados we looked at in Monday’s post, although it can be quite difficult to find the correct locations, as the search functionality is not very good. To help you find the locations, copy this url:
then paste it in the ‘Fetch or Go to’ option at the bottom right of the plugin. Then turn on historical imagery in both panes via the ‘Earth Layers’ menus at the top. Next, select appropriate imagery dates for comparison.