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(Article of periodic en Anglais - 2011)

Document title

Suitability of terrestrial laser scanning for studying surface roughness effects on concentrated flow erosion processes in rangelands

Authors(s) and Affiliation(s)

EITEL J.U.H. (1 2) ; WILLIAMS C.J. (3) ; VIERLING L.A. (1) ; AL-HAMDAM O.Z. (3 4) ; PIERSON F.B. (3) ;
(1) Geospatial Lab. for Environmental Dynamics, Univ. of Idaho, Moscow, ETATS-UNIS
(2) McCall Outdoor Science School, Univ. of Idaho, McCall, ETATS-UNIS
(3) US Dep. of Agriculture, Agricultural Research Service, Northwest Watershed Research Center, Boise, ETATS-UNIS
(4) Dep. of Biological and Agricultural Engineering, Univ. of Idaho, Moscow, ETATS-UNIS

Abstract

To test the suitability of terrestrial laser scanning for studying surface roughness effects on erosion processes in rangelands, The AA. used concentrated flow simulation techniques at 8.5 m2 plots that were randomly placed at rangeland sites in southeastern Oregon and southwestern Idaho, USA. Local surface roughness (locRMSH) was calculated as the standard deviation of TLS mapped surface heights within moving windows varying in size from 30 × 30 to 90 × 90 mm. The mean locRMSH of the eroded area and entire plot were negatively correlated with concentrated flow erosion. Adjusting locRMSH for slope effects decreased the strength of the locRMSH–erosion relationship. The results indicate that TLS is a useful tool to enhance the current understanding of the effect of surface roughness on overland flow erosion processes and advance hydrologic and erosion model parameter development

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2011, vol. 87, no3 [pp. 398-407]

Bibliographic references : 50 ref.

Collation : 8 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.07.009

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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