"Fluorescent Sand Movement" by Florian Lustenberger, University of Zurich
Entry in category 1. Object of study; © CC-BY-NC-ND: Florian Lustenberger
Fluorescent sand was used to visualize erosion processes on a moraine of the Stein-Glacier (Switzerland). The sand was placed as a line source on the surface before a high intensity rainfall experiment. During the experiment it moved and revealed how and where water flowed on the surface. The photo was taken the night after the experiment using long exposure time. The segmented chain and red ropes were used as distance references.
The color of the sand lines corresponds to different rainfall intensities (red=low, green=middle, blue=high). Here we see a photo after three successful experiments. The distribution of the sand reveals preferred flow paths on the surface which correlate with explaining variables, such as slope, vegetation etc. The photo was slightly adjusted in Photoshop (brightness, contrast, saturation).
"Fluorescent Sand Movement" by Florian Lustenberger, University of Zurich
Entry in category 1. Object of study; © CC-BY-NC-ND: Florian Lustenberger
Fluorescent sand was used to visualize erosion processes on a moraine of the Stein-Glacier (Switzerland). The sand was placed as a line source on the surface before a high intensity rainfall experiment. During the experiment it moved and revealed how and where water flowed on the surface. The photo was taken the night after the experiment using long exposure time. The segmented chain and red ropes were used as distance references.
The color of the sand lines corresponds to different rainfall intensities (red=low, green=middle, blue=high). Here we see a photo after three successful experiments. The distribution of the sand reveals preferred flow paths on the surface which correlate with explaining variables, such as slope, vegetation etc. The photo was slightly adjusted in Photoshop (brightness, contrast, saturation).