Elevation, Modeled Digital

As the name implies, is a digital image where the height is represented as the value of each pixel. This allows images to be displayed using color gradients or gradients, providing the best way to quickly visualize topography and terrain.

a concept that will be examined acutely in future posts.
But where?
Before we can start working with DEM, we have to narrow our focus to a relatively small area. In theory, this same analysis can be performed for any location where adequate elevation data is available.