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![]() Very few studies, however, transferred their data (i.e. ![]() Qualitative observations are frequently complemented by quantifying landforms on-screen, like measuring dune size in Peru (Hesse 2009), pre-landslide topography in Taiwan (Tsou, Feng, and Chigira 2011), or treeline elevation in Ethiopia (Jacob et al. 2007), Karst phenomena in Slovenia (Podobnikar, Schöner, and Jansa 2009), and glacial landscapes in Tibet (Heyman, Hattestrand, and Stroeven 2008). For example, Google Earth images were used to visualize and inspect dunes in Chad (Warren et al. As a result, the number of studies that use digital earth imagery to visualize, map, or analyze landforms is increasing. Indeed, such platforms allow 3D-visualizations or on-screen measurements that can facilitate fieldwork and planning, and to some extent, even replace it (Smith and Pain 2009). ![]() The free access to high-resolution satellite imagery through digital globes like Google Earth greatly benefits geographic studies. ![]()
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