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Faculty of Biology, Chemistry & Earth Sciences

Chair of geomorphology - Professor Dr. Oliver Sass

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Remote Sensing

The earth's surface can nowadays be depicted with incredible accuracy and detail, including all static and moving objects. Topographic data can be acquired with a set of methods and techniques and represented by different types of data, including raster-based digital elevation models (DEM’s), point clouds or triangulated meshes. Dominant methods for collecting and processing of high-resolution topographic data compass airborne or terrestrial laser scanning and (structure-from-motion) photogrammetry-based approaches, using a set of overlapping (terrestrial or aerial) images or satellite data. If recorded repeatedly such data allows identifying and quantifying geomorphic change using a range of raster, mesh- and point cloud based approaches.

Exemplary Publications:

  • Rascher, E. & O. Sass (2017): Evaluating sediment dynamics in tributary trenches in an alpine catchment (Johnsbachtal, Austria) using multi-temporal terrestrial laser scanning. Zeitschrift für Geomorphologie, Suppl.Vol. 61: 27-52. DOI: 10.1127/zfg_suppl/2016/0358.
  • Seier, G., Stangl, J., Schöttl, S. Sulzer, W. & O. Sass (2017): UAV and TLS for monitoring a creek in an alpine environment, Styria, Austria. International Journal of Remote Sensing. DOI: 10.1080/01431161.2016.1277045.
  • Götz, J., Otto, J.-C., Salcher, B. & J. Buckel (2015): Methodische Potentiale der modernen Geomorphologie für die Analyse, Quantifizierung und Rekonstruktion von Erdoberflächenprozessen. - In: GW-Unterricht (Fachwissenschaft) 138: 5-26.
  • Schrott, L., Otto, J.-C., Götz, J. & M. Geilhausen (2013): Fundamental classic and modern field techniques in geomorphology – an overview. - In: Shroder, J., Switzer, A.D., Kennedy, D. (Eds.), Treatise on Geomorphology. Academic Press, San Diego, CA, vol. 14, Methods in Geomorphology: 6-21. DOI: 10.1016/B978-0-12-374739-6.00369-9.
  • Bremer, M. & O. Sass (2012): Combined application of airborne and terrestrial laser scanning for quantifying sediment relocation by a debris flow event. Geomorphology 138: 49-60.

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