IGB

Connexion

(Article of periodic en Anglais - 2015)

Document title

Measuring rill erosion by laser scanning

Authors(s) and Affiliation(s)

VINCI A. (1) ; BRIGANTE R. (2) ; TODISCO F. (1) ; MANNOCCHI F. (1) ; RADICIONI F. (2) ;
(1) Dept. of Agricultural, Food and Environmental Sciences, Univ., Perugia, ITALIE
(2) Dept. of Engineering, Univ., Perugia, ITALIE

Abstract

This paper reports the results of a field investigation on the rill morphology and the corresponding soil loss, using a Terrestrial Laser Scanner (TLS), at the Masse experimental station (Umbria, Central Italy). For this paper 5 scans were made of some rills, which formed during particularly erosive rain in the plots of the Masse station. The point cloud was first interpolated by the natural neighbor method to create a discrete 0.02 m × 0.02 m square cell grid Digital Elevation Model (DEM) used for mapping the flow network. Three methods were applied to the DEM for detecting the channel network : the slope method (Horn, 1981; Wood, 1996), the constant drop method, described by Broscoe (1959) and the method of landform curvature (Tarolli et al., 2012). Finally, a comparison between the geometric characteristics and the eroded volumes was made using data measured both by the manual technique (profilometer) and by the TLS survey

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2015, vol. 124 [pp. 97-108]

Bibliographic references : 57 ref.

Collation : 16 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.09.003

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28944286 : Permanent link - XML version
Powered by Pxxo