Geographer Gregor Luetzenburg uses the latest iPhone’s LiDAR scanner to create 3D models of cliff surfaces.
I know in this photo I look like I’m moonlighting as an Instagram model, but I’m actually doing some important, practical science that would have been impossible a couple of years ago.
I’m using the phone, along with a selfie stick and a 3D-mapping app, to measure 1,500 square metres of coastline in Roneklint, about an hour’s drive south of Copenhagen, as part of my geography PhD project at the University of Copenhagen. The ground here is a sandy, glacial till, which erodes very quickly. A single storm can change the cliff surface. Erosion rates of up to one metre per year occur in this part of the world.
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