I recently got Windows 7 on my work machine and while I was configuring my settings I came across a new feature that I thought was pretty neat. The user can now create a desktop background image slideshow. All the user has to do is point the tool to a directory of images, configure some settings, and presto, desktop slideshow.
Now, what does this have to do with this blog? Well, being a geographer who works with the natural environment, I wanted images that reflected my interests. I proceeded to download a number of images from NASA’s Image of the Day website for this purpose.
There are a number of images that are great for the type of analysis that I do, and I often use data from NASA and other related agencies in my analysis. There is an added bonus to these unique datasets, a number of the images come as GeoTiffs, or KMLs, making the data available in a number of GIS programs from Google Earth to Quantum (and ArcGIS). The images have a fairly good resolution are in an open format, making them available in almost every GIS software on the market.