[x-post /r/DataArt] a 15,000-year history of the ever-changing paths of this Oregon river, rendered in data


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[x-post /r/DataArt] a 15,000-year history of the ever-changing paths of this Oregon river, rendered in data



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  1. >[The] data is collected by low-, slow-flying aircraft with equipment that shoots millions of laser points to the ground. When the data is studied, an amazingly accurate model of the ground can be mapped.nn>It is possible to strip buildings and vegetation from the images, so that only the ground is shown. In the Willamette River poster, ***the shades of white and blue show elevations. The purest white color is the baseline, (the zero point, at the lowest point near Independence on the upper part of the image). The darkest blue is 50 feet (or higher) than the baseline.***nn>The shades of white show changes in elevation, between 0 to 50 feet. This brings out the changes made by the river channel in the last 12,000 to 15,000 years, in the time since the landscape was basically swept clean by the Missoula floods.nnTaken from [OregonLive](https://www.oregonlive.com/travel/index.ssf/2013/04/willamette_river_presents_stun.html)

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