Virtual Hiking and the C5 Landscape Initiative

As many of you know, GIS analysis is based on the notion that alorithms within the computer can be used to analyze the digital representations of real-world physical features such as topography that are stored in the GIS. An example of an algorithm-based analysis would be a Least Cost Path, which analyzes the elevation values between two points and calculates the path between them that would require the least cost to traverse. The cost can be defined in any number of ways. The C5 Landscape Initiative is a series of projects that explore using GIS to represent different conceptions of the landscape as we move through it. One of their GIS-related projects, which incorporates virtual hiking, is called The Other Path. They trekked the Great Wall of China and mapping it using GPS, then returned to California and used various techniques to map out a path in a virtual California landscape using a virtual hiker, “an algorithm that produces computationally derived paths from data in such a way that allows them to be re-followed through the actual world.” The analysis created a virtual path in California that matched the path of the Great Wall in China. Then, they physically hiked the path to compare the experience. It’s pretty amazing stuff and only one of their projects. They have also created the C5 Landscape Database, which has an open-source API for Digital Elevation Model processing and analysis.

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