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Nat. Hazards Earth Syst. Sci., 16, 1269-1288, 2016
https://doi.org/10.5194/nhess-16-1269-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
31 May 2016
Quantification and analysis of geomorphic processes on a recultivated iron ore mine on the Italian island of Elba using long-term ground-based lidar and photogrammetric SfM data by a UAV
Florian Haas1, Ludwig Hilger1, Fabian Neugirg1, Kathrin Umstädter1, Christian Breitung1, Peter Fischer2, Paula Hilger1,a, Tobias Heckmann1, Jana Dusik1, Andreas Kaiser3, Jürgen Schmidt3, Marta Della Seta4, Ruben Rosenkranz4,b, and Michael Becht1 1Chair of Physical Geography, Catholic University of Eichstätt-Ingolstadt, 85072 Eichstätt, Germany
2Applied Physical Geography, Catholic University of Eichstätt-Ingolstadt, 85072 Eichstätt, Germany
3Soil and Water Conservation Unit, Technical University Bergakademie Freiberg, 09599 Freiberg, Germany
4Dipartimento di Scienze della Terra, Universitá degli Studi di Roma “La Sapienza”, 00185 Rome, Italy
anow at: Geological survey of Norway NGU, 7040 Trondheim, Norway
bnow at: University of Bremen, Department of Geosciences, 28359 Bremen, Germany
Abstract. This study focuses on the quantification and analysis of geomorphic processes on the barely vegetated slopes of a recultivated iron ore mine on the Italian island of Elba using photographs from terrestrial laser scanning (TLS) and digital photogrammetry by an unmanned aerial vehicle (UAV) over a period of 5 1/2 years. Beside this, the study tried to work out the potential and the limitations of both methods to detect surface changes by geomorphic process dynamics within a natural environment. Both UAV and TLS show the pattern of the erosion and accumulation processes on the investigated slope quite well, but the calculated amounts differ clearly between the methods. The reasons for these differences could be found in the different accuracies (variable level of detections) of the methods and the different viewing geometries. Both effects have an impact on the detectable process dynamics over different timescales on the slope and their calculated amounts, which in both cases can lead to an underestimation of erosion and accumulation by fluvial processes.

Citation: Haas, F., Hilger, L., Neugirg, F., Umstädter, K., Breitung, C., Fischer, P., Hilger, P., Heckmann, T., Dusik, J., Kaiser, A., Schmidt, J., Della Seta, M., Rosenkranz, R., and Becht, M.: Quantification and analysis of geomorphic processes on a recultivated iron ore mine on the Italian island of Elba using long-term ground-based lidar and photogrammetric SfM data by a UAV, Nat. Hazards Earth Syst. Sci., 16, 1269-1288, https://doi.org/10.5194/nhess-16-1269-2016, 2016.
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This study focuses on the quantification and analysis of geomorphic processes on the barely vegetated slopes of a recultivated iron ore mine on the Italian island of Elba using photographs from terrestrial laser scanning and digital photogrammetry by an unmanned aerial vehicle over a period of 5 1/2 years. Beside this, the study tried to work out the potential and the limitations of both methods to detect surface changes by geomorphic process dynamics within a natural environment.
This study focuses on the quantification and analysis of geomorphic processes on the barely...
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