Articles | Volume 5, issue 4
Earth Surf. Dynam., 5, 791–806, 2017
https://doi.org/10.5194/esurf-5-791-2017

Special issue: 4-D reconstruction of earth surface processes: multi-temporal...

Earth Surf. Dynam., 5, 791–806, 2017
https://doi.org/10.5194/esurf-5-791-2017
Research article
05 Dec 2017
Research article | 05 Dec 2017

Unravelling earth flow dynamics with 3-D time series derived from UAV-SfM models

François Clapuyt et al.

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Cited articles

Ayoub, F., Leprince, S., and Avouac, J.-P.: Co-registration and correlation of aerial photographs for ground deformation measurements, ISPRS J. Photogramm. Remote Sens., 64, 551–560, https://doi.org/10.1016/j.isprsjprs.2009.03.005, 2009.
Bennett, G. L., Molnar, P., McArdell, B. W., Schlunegger, F., and Burlando, P.: Patterns and controls of sediment production, transfer and yield in the Illgraben, Geomorphology, 188, 68–82, https://doi.org/10.1016/j.geomorph.2012.11.029, 2013.
Blasone, G., Cavalli, M., Marchi, L., and Cazorzi, F.: Monitoring sediment source areas in a debris-flow catchment using terrestrial laser scanning, Catena, 123, 23–36, https://doi.org/10.1016/j.catena.2014.07.001, 2014.
Caduff, R., Schlunegger, F., Kos, A., and Wiesmann, A.: A review of terrestrial radar interferometry for measuring surface change in the geosciences, Earth Surf. Proc. Land., 40, 208–228, https://doi.org/10.1002/esp.3656, 2015.
Carbonneau, P. E. and Dietrich, J. T.: Cost-effective non-metric photogrammetry from consumer-grade sUAS: implications for direct georeferencing of structure from motion photogrammetry, Earth Surf. Proc. Land., 42, 473–486, https://doi.org/10.1002/esp.4012, 2017.
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Short summary
This work aims at understanding the behaviour of an earth flow located in the Swiss Alps by reconstructing very accurately its topography over a 2-year period. Aerial photos taken from a drone, which are then processed using a computer vision algorithm, were used to derive the topographic datasets. Combination and careful interpretation of high-resolution topographic analyses reveal the internal mechanisms of the earthflow and its complex rotational structure, which is evolving over time.