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(Article of periodic en Anglais - 2009)

Document title

LiDAR-derived slopes for headwater channel network analysis

Authors(s) and Affiliation(s)

VIANELLO A. (1) ; CAVALLI M. (2) ; TAROLLI P. (1) ;
(1) Dept. of Land and Agroforest Environments, Univ., Padova, ITALIE
(2) CNR-IRPI, Padova, ITALIE

Abstract

Slope is one of the most important distinguishing features for channel morphology. The AA. compare different methods for computing channel slope using LiDAR-derived digital terrain models (DTMs) with varying resolutions. They chose a headwater basin of the Eastern Italian Alps, characterized by a dense ephemeral colluvial network and a main alluvial channel as study area. The identified alluvial morphologies are characteristic of steep mountain streams, namely, cascades and step pools. Results indicate that a single method for slope calculation cannot estimate channel slope at the hydrographic network scale. Nevertheless, a reliable channel slope can be derived from a DTM with an appropriate resolution by choosing a suitable method only after considering the channel width

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2009, vol. 76, no2 [pp. 97-106]

Bibliographic references : 36 ref.

Collation : 9 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2008.09.012

Prodig - Bibliographie Géographique Internationale (BGI)
Refdoc record number (ud4) : 21383979 : Permanent link - XML version
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