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Earth Surface Dynamics An interactive open-access journal of the European Geosciences Union
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Volume 4, issue 2
Earth Surf. Dynam., 4, 343–358, 2016
https://doi.org/10.5194/esurf-4-343-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Frontiers in geomorphometry

Earth Surf. Dynam., 4, 343–358, 2016
https://doi.org/10.5194/esurf-4-343-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 21 Apr 2016

Research article | 21 Apr 2016

Topography-based flow-directional roughness: potential and challenges

Sebastiano Trevisani and Marco Cavalli

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Short summary
The generalization of the concept of roughness implies the need to refer to a family of roughness indices capturing specific aspects of surface morphology. We test the application of a flow-oriented directional measure of roughness based on the geostatistical index MAD (median of absolute directional differences), computed considering gravity-driven flow direction. The use of flow-directional roughness improves geomorphometric modeling and the interpretation of landscape morphology.
The generalization of the concept of roughness implies the need to refer to a family of...
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